I highly recommend measuring the subs with "acoustic timing". Then you can use the REW Alignment Tool to find the best summation of all the subs without trying to input a ton off different delays. It's highly accurate much quicker and only requires to measure each sub once and than use the alignment tool to find the what works best in your room.
EDIT: I changed the subwoofer position and tried the steps discribed below again. This time the timealignement was not good. I got totally different and beter curve results with brads method! What I tried and this seems to work pretty well (I am a REW noob, there could be a better way): 1. Set Measurement in REW to the settings Brad provided 2. Switch to "use acoustic timing reference" 3. Unplug your left main (so that you don't get any signal from it, if you crossover does not go as high) and set the reference speaker to right 4. do a measurement for sub 1, sub 2, ... mute the others respectively 5. in the text under the miniature measurement on the left in REW there is a time and distance now for each sub 6. the time will be negative, what you cannot put into the minidsp 7. take the largest distance from the sub measurements and round it up to something nice 8. put that distance in your AVR for your sub 9. now do the measurements again and you will get new (positive) numbers for time delay 10. put those time delays into the mini dsp for each sub Instead of putting in the delay for each sub you also can set Sub 1 to zero and substract its dealy from the other numbers. It's the same, but the subs are not time aligned with the main R anymore (which Brad does later with the X-over anyway? So there should be no difference here - please correct me if I am wrong). For me this provided a slightly different number as I got by Brad's method (calculated 3,69 vs. 4,7), but the overall sum measurement seems to be pretty close to it as well. I am not sure which I prefere (I got to nasty points at 30 and 90Hz, of course only one of them is better with each method and one is worse...). So - if you are not up for tons of measurements and analysis by eye, this could help, I think.
Great video; very high quality. However, I recommend that you spend a bit more time refining the methodology based on science first, then moving on to trial and error. You should start off the time alignment by using a tape measure and math. Determine the actual distance between the microphone at your preferred listening position and all subs. For example, my 4-sub setup consists of two tapped horns at the front corners and two standard bass-reflex Polk subs at the back (i do not recommend Polk). Not only are the tapped horns 6.6 feet further away than the rear subs, but because of the folding inside the TH's, the drivers are an additional 2 feet away from the front of the enclosure. Calculating the delay at 8.6 feet and using the rough speed of sound (which can vary) of 0.895ms per foot, i would start with a 7.7ms delay applied to each of the tapped horns (or a different number for each if they're not equidistant). From there, I would then fine-tune using the "better or worse" method, stepping up and down by 0.01ms. Trust me when I say that 0.01ms can have a huge impact on the response. Also, don't be fooled by a powerful or even flat response; flat response does not equal low distortion. As such, you also want to look at the distortion of each successive measurement. You can have a nice response with horrible distortion, and your expensive subs will sound like crap, albeit loud crap. Reflections might help to boost dB and give you a deceivingly flat response, but the timing misalignment will wreak havoc on the distortion level, making your bass sound like a whoopie cushion in an echo chamber. I have had a timing difference of only 0.2ms increase distortion from 39% to 300%. It goes without saying that what sounds good in one spot might sound like shit in another. My theater is calibrated for the spot between my right ear and my wife's left ear....everyone else gets whatever they're lucky enough to get.
Dude...I've been waiting for a walk through on how to do this! Thanks so much for this video. Now I need to pullout all my measuring tools and try it out!😁
where do you want your subwoofers gain knob set at when starting REW? And also,do I want my left front speaker still outputting while I am level matching each sub? When I play the pink noise it is still actively playing the noise also. LOL,sorry for the dumb questions!
Hay, I have the RX-A4A. If I set it to straight or pure direct before taking measurements, would that work, or do I still need to go disable everything mentioned? Thanks
Do we have to unplug the 2×4hd after the eq or should we leave it with the AVR... I know it's a dumb question but yeah I wanna know it... thanks in advance
you level match your fronts to 75db with avr volume set to -17.db . Normally you will use reference level -0db for that ? do you level match all speakers in AVR levels section, when you have run room correction software ?
Quick question. I'm about to receive my second sub in the mail next week. When I fallow along with this should I set the first subs DB to 75 using the volume nob on the sub itself and then the second sub using DSP software to match? Or can i just use the volume nob on both. I'm confused as to why you used the svs app for one and not the others? Or is it because you only have one svs sub? Any clarification on that would be greatly appreciated. Or should I set both subs to 12 o'clock and then use the DSP software to set both at 75 DB?
hello minds guru, I have set up the connection as you described in part1 and I have an issue to get the sub input level to come up on minds software after I pressed the play button on the REW generator. I could hear the noise from my left main speaker but the sub. please advise.... you missed this in your part 2 clip
When you were on the first two subs adding delay, I noted you only tested adding delay to one of the subs and then you settled on 4.2 and then moved on to adding in sub 3. Would there be any benefit after getting the best reading you could from adjusting delay on the left sub, to then adjusting delay on the right sub before moving on to the third sub?
Think about two turtles walking at the same speed. One is 5seconds in front of the other. You pick it up for 5 seconds so the other turtle can catch up. Now they are walking side-by-side. DONE. THAT IS IT. Delaying the second turtle would only cause them to get back out of alignment.
You said "I set the overall gain to -15db in the app" referenced earlier,huh?, the mini dsp app and that would be the input gain or are you talking about the gain you set on the denon?
Hi there great tutorials. I used a toslink (optical) cable instead of HDMI to connect my pc to my receiver. When I switch to Sub cal, I also hear the signal also through the left main channel is that normal? Or do I really need HDMI
Thanks for making these DSP tutorials. Really hoping you can answer my questions! A few questions for you: 1. In the level matching section are we just level matching our subs with our front left speaker? If yes, why and why not level match with front L+R and why not level match with just the front right speaker? I'm sure this is a super basic question, but I don't get what we're doing and what it's accomplishing. 2. Do we need to set the level of the surround speakers to 0.0dB (Denon receiver>speakers>manual setup>levels>test tone or do we leave those to whatever audyssey setup? 3. Should we run audyssey before we start this? does it matter? 4. I noticed your RMS signal level is set to -12.00dBFS. Mine was set to -20.00dBFS, should I change this to match yours before playing any test tones?
@@hollosym I am running Audyssey!!! If you don’t mind can you send me the online link!!! I like the Brad video but it not clear what to perform from first to last, in his video he said to match with left speaker and turn off adyssey. Watch with -30db on raw.
@@lalithpodduturi9811 the big thing he glossed over is setting the type of sweep in REW to “sub” ie subwoofer. In the end you could simply unplug your front left channel and you’re good. Just make sure you doable all room correction. His method kinda sucks tbh, the better method is using the alignment tool in REW. Here’s a great breakdown: th-cam.com/video/8bwpLfbLiZ4/w-d-xo.html. That guy's channel I linked above has some really great tutorials. He has a JBL SDP-55 processor so it's a tad different when talking about how to disable room correction. You can follow Brad's how-to to disable audyssey room correction on your receiver.
Great video, Question regarding the level matching section (9:15). After you set the volume with the mains using the receiver remote, are you disconnecting the mains to level match the subs? Or do you keep the mains active when level matching each sub?
Oh wait, I just noticed that you set the play tone to 'Speaker Cal' when volume matching and your changed it to 'Subwoofer Cal' when you level matched the subs.
@@goos3838 I was wondering the same thing. I'll have to try it and see if the left speaker is cut out and not playing during the sub cal or measurement runs.
When I set the tone generator to sub cal, I still get a signal from my left front channel. I have the receiver crossover set to 250hz. Any idea why this may be occuring. I appreciate the help!
Hello Team, I need some help darling in my subwoofers, My question is should I add a house curve in the mini DSP and then run anthems ARC room correction or just use the mini DSP to flatten the response and then add the house curve in anthems ARC room correction? I’ve tried letting the anthem do everything but I think incorporating a miniDSP will achieve better results. I can’t move the subwoofers around my room to improve their in room response as I’m very limited with space.
Purchased a 2nd SUB and a Mini DSP. Working on Time Alignment. 1) should I run Audyssey with "One Sub (the two subs connected to the Mini DSP) for it to estimate a delay/distance for the subs? 2) Once we set Audyssey to "off", do we need to change the AV Subwoofer distance to "0" too?
Can this device be used to expand the left and right surrounds of my HT? I am planning on two rows of seats and each row having their dedicated left and right surround speakers. Therefore out of Pre pro left surround into mini dsp input one and then two out say output 1 and 2 into power amp connected to two left surround speakers. Then same setup to create two right surround with input 2 of dsp and output 3 and 4 and so forth.
In the playing of the Sub Cal -- 1. Should the front speakers be muted? 2. How did you adjust the subwoofer output to ~77 dB? Changing Input gain or changing Output gain? 3. Are you measuring all subwoofers playing at the same time, ie, with all subwoofers unmuted? 4. if the answer to question 3 is YES, should the individual subwoofers first be adjusted to equal dB before measuring with all subwoofers unmuted?
I don't understand what the graph should look like, so when you say this is not good, I don't know why :) a video that explains the whole graph thing, would be great
Hey there Brad - Merry Chrisrtmas to you and yours - and your channel! A question for you please - While using the miniDSP where the subwoofers are connected as out 1 and out 2 from the dsp and left sub is connected from sub out 1 from the avr to input 1 on the dsp, should the subwoofer speakerssetting in the avr be changed from 2 subwoofers (as was my case before subscribing to you and getting a minidsp!) to show as 1 subwoofer as the dsp is now controlling?- - or does it matter?
I just recently upgraded to 4 subs and ran across REW and was wanting to use it to set them up. Is it my understanding that once set up with the dsp 2x4 is complete you leave it linked between your receiver and subs correct?
how loud do you calibrate? even at -20 db on my receiver I was not getting 75 db C weighted random pink noise in my Umik1... test sound is not clean. it is sparkly. music sounds like it should..
Rew is not recognizing my marantz in the soundcard preference. It only gives me a choice of default device, primary sound driver, speakers ( minidsp 2×4hd) or speakers ( 2 high definition audio device). Any ideas on how to it would recognize my marantz?
Great videos! got everything set up up until level matching. I'm not getting any sound from any of my 4 subwoofers when I'm running the SPL meter. Please help
Jl audio cr1 crossover vs mini dsp? Is one more preferred? It seems like with minidsp, there is a lot to learn and the jl audio crossover not as much. Any thoughts?
Question: I have followed your steps. I have an Anthem MRX720 and set all crossovers to 250Hz. In REW, when I run a measurement with the setting 10Hz to 200Hz, I still get sound out of my front left speaker. Can you give me some insight as to what I am doing wrong?
Hi Brad, thanks for this series...it will be very helpful when my Umik and MiniDSP arrives later this week. One question, though, is since you are running your subs off the miniDSP, before you measure do you adjust the sub distance to 0.0 ft in your Denon since the miniDSP is handling the delay?
I would recommend taking the Denon out of the signal path at first. Connect an audio cable from your laptop to your Input 1 on the MiniDSP (this is where you'll connect your Denon subwoofer out), then the outputs of the MiniDSP to each of your subs. Set the timing of the subs relative to each other and make adjustments (including individual PEQ for each sub) within the MiniDSP. Once you have the subs set up to work together as a team, then you include the Denon. At that point, you can use the Denon's Audyssey mic to make timing measurements for all of your speakers, to include your unified subwoofer team. This is important, because the Denon will see all four subs as only 1 sub, so it's critical that you just focus on getting them working as a team. You will also need to do level matching again once you have all of the subs connected to the Denon.
I can't get new to play the sub tone. I have set xover to 250hz . when I press play and L is selected then the left speaker plays, if I choose lfe then almost no sound from sub although plenty of sound if I use avr test tones
I am running a Yamaha RX-V685 and I'd like to connect a Crown XLI 1500 to it but I've read that I need a ART CLEANBoxPro Dual-Channel Level Converter. do I still need the clean box if i am already getting a Mini dsp?
Great video this inspired me to give calibrating my subs another go.... I use a Mac so somethings are different so that’s tripped me up a few times in the past with other tutorials ... but I think this video shows some details home theater gurus didn’t really make clear. Thanks for the upload!
I bought this thing because this video made it look easy. I'm sure it would be if my steps were the same as the ones in the video. Did anyone else have this problem?
if you get a laser tape measure and sit in your lisening position and point at the sub from about where your ear usually is. then calculate from the lenght how many ms it takes for sound to travel well at the speed of sound. now say you have a sub behind you measure the same distance and and calculate the same way the ms but take it away from the previous results. this should make it so sound hits you at the same time if the subs play it at the same time. so thats a really good starting point for time alignment
After turning everything off in the receiver and setting the sub level to zero, what is a good general distance for the subwoofer in the receiver to start measurements? Should you just pick one that gives you a decent response to start with?
Brad help!!!! Why when I want to run my subwoofer sweeps am I only getting the sound from my front left channel? Seems others have had some similar issues too without any reply.......is there not an answer to this?
That’s really interesting. I’ve not run into that problem. Are you using ASIO4ALL? If you are, try switching to JAVA or using output 4. Also, if you’re speakers are set to large in your receiver, or your receiver is in DIRECT or pure mode, then that might be why as well. You want it set to STEREO or Multichannel Input. And make sure you speakers are set to small. I’d verify all of those things and see what the results are. Sorry I can’t be of more help as I just haven’t experienced that issue.
@@HomeTheaterGamer I have tried everything under the sun. Speakers are at small, levels are 0.0, Audyssey is off, stereo is selected, Switched the Denon back to 1 sub. Using Java. 🤷♂️. Thanks for replying 🙏
@Ryan Lewis just so I’m understanding you correctly, you’re not getting any sound from your subs at all, correct? I’d also make sure to verify that on the MiniDSP software, under the inputs and routing section, that ANALOG is selected. Mine defaulted to USB. Also make sure that all Xovers in the Outputs tab are bypassed.
@@HomeTheaterGamer I have everything set as you just stated. I am getting sound from my subs but also from the mains when setting SPL levels. But, When I take a measurement in REW the subs are not working, just the main as my lowest frequency is 38 which is on par with the RP-8000F.
@@78rlewi I'm having the same issue. When I'm attempting to level match, my left front channel outputs pink noise with the sub cal setting. I'm not getting any noise from my subs. Have you figured this issue out, by any chance? Thanks!
So glad I watched the video earlier with you and #Youthman at his house and then followed the link to using the Mini DSP with 4 subwoofers. Thank you for all the help!!
Hmmmm. On the input tab, double check that ANALOG is selected instead of digital or Toslink. I recently helped a friend set up his miniDSP and was surprised that his defaulted to Toslink.
Something I've seen kind of unclear, after disabling room correction, setting sub gain to 0, and XO, do you do anything with the old distance levels or leave them where they were? Thank you!
I typically don’t touch the setting unless there’s something REALLY wrong with the final output that is not correctable when you get to the main to sub time alignment stage. The sub distance itself is nothing more than a phase setting/alignment setting for sub to main integration, which can be done in the miniDSP software.
@@HomeTheaterGamer Just confirming during the measuring and setting up dsp, you leave the old sub distance alone on avr? No need to set to 0 like the gain?
@@YourMovieFix If you have an AVR with a microphone that can do auto measurements, I would recommend using it again AFTER you have set everything up in the miniDSP. This is because all of the changes you make in the miniDSP, especially timing delay, will change the distance that your AVR calculated before introducing the MiniDSP. Even the miniDSP itself adds "distance", because there is a process of ADC (analog to digital), DSP (digital signal processing), and then DAC (digital to analog conversion) that takes place. It is fast, but it may introduce as much as a 1ms delay...which is about a foot of distance. Timing is insanely important; while it can help with SPL, it is critical for sound clarity and coherence. It's the whole reason why expensive AVRs come with microphones in the first place.
Thank you, brat, for the tutorial. I can see many people facing problems when they play (SUB Cal) test tone the front speakers play sound with the sub. If anyone wants to play (SUB Cal) tone from the mains only without the sub they have to put the front speakers to Large instead of small. If you put the speakers to small the mains and sub will play the (SUB Cal test Tone) at the same time. Hopefully, this will help,
For measuring the subs the way Brad is showing then its correct that the front Left speaker also plays the test tone along with the sub of choice? Because thats what is still showing below in the app. Also, what should the gain knob on the back of the sub itself be set to?
Awesome video. Thanks for sharing. I gain matched my mismatched subs like in home theater gurus ep 8. Would you recommend gain and level matching or is gain matching alone sufficient?
@Alvin Cole I just raised the volume on the receiver until the left front channel reads 75dB on the SPL meter when playing the "SPEAKER CAL" tone in REW. That's it. In my case, that ended up being -17.5dB on my Denon X2300W.
When you match the subs I am having to really adjust the level like in the -20 range. Do you think that is normal? All my gains on the subs are set to 1/2 or almost 1/2.
Hi should I be leaving the output to the left channel (L) when measuring levels on my sub? Or should I be changing the output to LFE? Although I have raised all crossovers and disabled DSP (I think) in my Yamaha receiver I am still getting output from my main channel when using the L channel for the test. Even with the REW setting changed to sub. Not sure if I am perhaps missing something in the Yamaha or if I should switch it to LFE for measuring the level of my sub (I only have one). Thanks for any advice!
My friend, do you think this device can help solve the problem of watching movies? that problem with low dialogue and very high action scenes? Is it possible to leave everything in the same volume? I use the optical cable TV/soundbar subwoofer connection via Bluetooth. Please my friend help simple soundbar 2.1
I've followed the first video and this one to a T, but I can't get sound to play out of my subs. Minidsp is connected, subs are hooked up and on, etc. When I select sub cal it play through my speaker that the speaker cal did.
When you gain match, do you keep the distance from listening position the same? In my room the Front Sub is 11-9 away and the rear sub is 7-6 away. Does it interfere with the delay time?
I wouldn't worry about the distances too much as time alignment with the miniDSP will take care of that. It shouldn't interfere with the delay time at all.
I believe it is generally suggested to set the sub level to -6/-5 due to potential clipping. I just finished building two Stereo Integrity HT18's last week and set them up with with the 2x4HD. After getting them roughly calibrated with the sub out set to level 0, when playing edge of tomorrow at 0db Master volume on my denon x4400h, the subs were clipping. Turned the volume down to -5 and clipping went away. So I turned the sub out down to -5 and turned the amp up to compensate. Now at 0 on the volume there is no clipping. Didn't try to go louder but I would agree that the sub level should be set to -5 as stated I the avsforum subwoofer setup guide. But overall these videos were very helpful!
Great video! I just bought a UMIK-1 last week and followed your video to get some sweeps of my sub. If I'm running only 2 subs don't you want to add delay to the second also? If they are about the same distance? I'll be adding a second soon and curious. Looking forward to the next video I'm curious on what to do next as far as calibration with audyseey and if you run it next. I like to run my subs hot usually over 80db to get a final trim of -11. 5 maybe some of this will be answered in the next video 👉. Also one more question I have 2 sub outs on my denon should I run just one to the DSP to control my 2 subs? Or both sub outs to the in of the DSP ?
Hi thanks for the explanation, why are you using the 90 degree mic cal file if you are calibrating in stereo ? I read in the minidsp that the normal file is to be used when you are calibrating a single speaker (like a sub) please let me know if I got this wrong.
Since he is measuring three speakers in a HT set-up, the mic is in the vertical position and the 90deg cal file is for that position. If your are measuring a single speaker "near field" for it's performance or a stereo 2.1 system you use the mic in the horizontal position and the 0deg cal file. I hope that helps.
This is a great how-to video! So glad I came across this - thanks for doing it for us. I will be using this when I get to this stage of my theater build for sure.
Brad, curious. what would you set the distances to in the AVR? I have 4 subs. 2 in the front corners and 1 on each side of my couch. If 2 are 10 ft away and the rear ones are 7 feet away is that what I would set them to in the AVR distances tab?
That's a good starting point. The sub distance settings aren't really related to distance, though. They're essentially an alignment adjustment so they blend with your mains better. If you have REW and some free time, use REW to to measure different settings for each pair of subs and pick the one that gives you the smoothest response at and around the crossover point. That will be the optimal distance setting. I'll be doing a video about this soon. Possibly even this week.
I guess what I'm curious on is in the mini dsp the 10 and 7 would be good starting delay points ... but in the AVR I would leave distance/ delay at 0 since the dsp will be handling that correct? oh and in the level matching.... what did you set the subs gain knobs at to start with
It can be but not needed here. If you do want to run it at 0dB, then you'll want to change the tone generator and measurement volume to -30dBfs. Otherwise, you could damage your equipment and possibly hearing running those at REW's default of -12dBfs.
Great set of videos very useful! I have a question though I've set the crossover in the receiver to 250hz but when I play SUB cal pink noise I hear it through either my left or right speaker as well as my subwoofer. It throws off my calibration to 75db because its so loud from my main speakers.
I have the same issue. I set the crossover to 250hz in the receiver, but I'm getting pink noise from my left channel. On top of that, I'm not getting any noise from my subs. I see a rise in the output meter in the MiniDSP plugin, but no sound. I don't have them muted. Not sure what's happening there. By any chance, have you solved this issue?
I get the same issue. I've got the crossover in my Yamaha RX-A2080 set to max 200hz on all speakers, yet I still get output from the left and right tower speakers rather than isolating to the subs. Hope someone can help
@@mwstorms21 My issue turned out to be a problem with my SVS subs. I wasn't getting any sound from my subs, and the receiver was directing the sound to my mains. I had to reset the subs to get them to pick up the signal. For calibration, I believe that you'll get noise from the L or R mains (which ever is set to receive the signal in REW), but above the crossover set in the receiver. When you run the frequency sweep, the sub should output the signal up to the 200hz. As for the pink noise, make sure the sub is receiving a signal. That was my problem at least. I know everyone's issues are different, but I hope this helps a little.
I got the same issue with my SONY avr so I just unplugged the speaker cables and then I got the sound from subwoofers only. It could be some simpler thing going on I just can’t figure out.
Why would you use the left speaker to level match and not the subs? And how did you even play a test tone to the normal front L speaker with only the 2x4 hd?
The left speaker is only the reference point, as we need to know what volume to set the subs at relative to what your speakers are playing, and this assumes that you’ve level matched all your speakers as well. If your speakers are all level matched to say, 75dB, then you want your subs playing around that level, but a bit more if setting a house curve (see my other response for a quick explanation as to why).
@@HomeTheaterGamer thanks a lot for the response mate. I actually completely missed a step. I didnt catch that you need to connect rew via hdmi to the reciever to play tones to the front speakers. Thanks a lot So yeah 1) set volume of avr with fronts 1.5)find sub position 2)level match subs 3) time align subs I am sorry that I typed so many messages :D After you level matched the fronts and sub you disconnected the fronts right? For the actual time alignment and Level matching of only the subs
@@HomeTheaterGamer So only one thing left unclear for me. When do you turn off the front speakers? When measuring subs to be sure only the subs are responding?
There is a reason. Adjusting phase on the subwoofer itself or adding a time delay using the miniDSP both achieve the same thing. Time aligning is basically adding a delay to one sub to match another, which is essentially what the phase adjustment on a subwoofer does (adding a delay to the input signal). I chose to use the miniDSP as it allows for far more granular control down to a 10th of a millisecond and I also find it easier overall.
We want full control of the level within the miniDSP and don’t want the AVR adjusting the signal at all. It’s basically taking out any variability. You can theoretically have the sub level set to anything in the AVR and as long as you don’t change it, you’d be ok. But, if you set it to -3dB in the AVR, you may end up having to boost it more when doing EQ or after the fact as EQ tends to bring the level down ever so slightly. I’d avoid going over 0dB sub level in the AVR at all costs though as it may introduce distortion and clipping depending on overall volume.
@@Prevstar The -10dB is showing that the "gain" setting on your sub is set higher than Audyssey was expecting, so Audyssey set the AVR output to -10dB to bring the volume level of the sub down to the level it needed. There is thoughts that say that your setting is actually a good way to set up subs so the sub has more available power to the driver and isn't held back by the gain setting being low. Having the gain on the sub high and AVR set low or in the negative is like having a V8 engine when all you are using is a 4 cylinder amount of power. I hope that helps.
Not that I’m aware of. I’ve had no issues with noise at all (it’s dead silent and there is no audible noise coming from the subwoofers). I’m not sure what you mean by low tabs. Could you elaborate?
In that case, you’d want to use something like a 3.5mm to RCA cable from the audio output on your laptop to the stereo input on your receiver. Similar to this one: amzn.to/3yP8oH8.
Watch all of my miniDSP tutorial videos in this playlist (part 4 to come soon): th-cam.com/play/PLriHxML5BOuORC1FWqBI4PF9us7yG8IjK.html
I highly recommend measuring the subs with "acoustic timing". Then you can use the REW Alignment Tool to find the best summation of all the subs without trying to input a ton off different delays. It's highly accurate much quicker and only requires to measure each sub once and than use the alignment tool to find the what works best in your room.
I did not know this. I will definitely look into it and give it a try! Thanks for the info!
You got some documentation on that? I want to tune my subs and I am just starting to learn 👍
@@HomeTheaterGamer any update on using the REW alignment tool?
EDIT: I changed the subwoofer position and tried the steps discribed below again. This time the timealignement was not good. I got totally different and beter curve results with brads method!
What I tried and this seems to work pretty well (I am a REW noob, there could be a better way):
1. Set Measurement in REW to the settings Brad provided
2. Switch to "use acoustic timing reference"
3. Unplug your left main (so that you don't get any signal from it, if you crossover does not go as high) and set the reference speaker to right
4. do a measurement for sub 1, sub 2, ... mute the others respectively
5. in the text under the miniature measurement on the left in REW there is a time and distance now for each sub
6. the time will be negative, what you cannot put into the minidsp
7. take the largest distance from the sub measurements and round it up to something nice
8. put that distance in your AVR for your sub
9. now do the measurements again and you will get new (positive) numbers for time delay
10. put those time delays into the mini dsp for each sub
Instead of putting in the delay for each sub you also can set Sub 1 to zero and substract its dealy from the other numbers. It's the same, but the subs are not time aligned with the main R anymore (which Brad does later with the X-over anyway? So there should be no difference here - please correct me if I am wrong). For me this provided a slightly different number as I got by Brad's method (calculated 3,69 vs. 4,7), but the overall sum measurement seems to be pretty close to it as well. I am not sure which I prefere (I got to nasty points at 30 and 90Hz, of course only one of them is better with each method and one is worse...).
So - if you are not up for tons of measurements and analysis by eye, this could help, I think.
Great video; very high quality. However, I recommend that you spend a bit more time refining the methodology based on science first, then moving on to trial and error. You should start off the time alignment by using a tape measure and math. Determine the actual distance between the microphone at your preferred listening position and all subs. For example, my 4-sub setup consists of two tapped horns at the front corners and two standard bass-reflex Polk subs at the back (i do not recommend Polk). Not only are the tapped horns 6.6 feet further away than the rear subs, but because of the folding inside the TH's, the drivers are an additional 2 feet away from the front of the enclosure. Calculating the delay at 8.6 feet and using the rough speed of sound (which can vary) of 0.895ms per foot, i would start with a 7.7ms delay applied to each of the tapped horns (or a different number for each if they're not equidistant). From there, I would then fine-tune using the "better or worse" method, stepping up and down by 0.01ms. Trust me when I say that 0.01ms can have a huge impact on the response. Also, don't be fooled by a powerful or even flat response; flat response does not equal low distortion. As such, you also want to look at the distortion of each successive measurement. You can have a nice response with horrible distortion, and your expensive subs will sound like crap, albeit loud crap. Reflections might help to boost dB and give you a deceivingly flat response, but the timing misalignment will wreak havoc on the distortion level, making your bass sound like a whoopie cushion in an echo chamber. I have had a timing difference of only 0.2ms increase distortion from 39% to 300%. It goes without saying that what sounds good in one spot might sound like shit in another. My theater is calibrated for the spot between my right ear and my wife's left ear....everyone else gets whatever they're lucky enough to get.
When we are measuring the subs should we disconnect the other speakers? Only the subs must be playing?
Thanks for making these videos. Curious what the distance should be set at in the AVR prior to minidsp calibration?
Dude...I've been waiting for a walk through on how to do this! Thanks so much for this video. Now I need to pullout all my measuring tools and try it out!😁
where do you want your subwoofers gain knob set at when starting REW? And also,do I want my left front speaker still outputting while I am level matching each sub? When I play the pink noise it is still actively playing the noise also. LOL,sorry for the dumb questions!
Hay, I have the RX-A4A. If I set it to straight or pure direct before taking measurements, would that work, or do I still need to go disable everything mentioned? Thanks
Do we have to unplug the 2×4hd after the eq or should we leave it with the AVR... I know it's a dumb question but yeah I wanna know it... thanks in advance
you level match your fronts to 75db with avr volume set to -17.db . Normally you will use reference level -0db for that ? do you level match all speakers in AVR levels section, when you have run room correction software ?
Your vidoes on rew are very helpful! thank you
I could get no sub output on L as you did, I used LFE and finally got to be able to set the levels of my subs. I hope I’m not doing anything wrong?
Quick question. I'm about to receive my second sub in the mail next week. When I fallow along with this should I set the first subs DB to 75 using the volume nob on the sub itself and then the second sub using DSP software to match? Or can i just use the volume nob on both. I'm confused as to why you used the svs app for one and not the others? Or is it because you only have one svs sub? Any clarification on that would be greatly appreciated. Or should I set both subs to 12 o'clock and then use the DSP software to set both at 75 DB?
I get no sound out of my sub when doing this, I'm confused 😕
hello minds guru, I have set up the connection as you described in part1 and I have an issue to get the sub input level to come up on minds software after I pressed the play button on the REW generator. I could hear the noise from my left main speaker but the sub. please advise.... you missed this in your part 2 clip
I know same here
the first sub you level mathed with front speaker. Did you adjust that subs volume in the AVR speaker level setting?
When you were on the first two subs adding delay, I noted you only tested adding delay to one of the subs and then you settled on 4.2 and then moved on to adding in sub 3. Would there be any benefit after getting the best reading you could from adjusting delay on the left sub, to then adjusting delay on the right sub before moving on to the third sub?
Think about two turtles walking at the same speed. One is 5seconds in front of the other. You pick it up for 5 seconds so the other turtle can catch up. Now they are walking side-by-side. DONE. THAT IS IT.
Delaying the second turtle would only cause them to get back out of alignment.
In the playing of the Sub Cal --
1. Should the front speakers be muted
Or LFE
You said "I set the overall gain to -15db in the app" referenced earlier,huh?, the mini dsp app and that would be the input gain or are you talking about the gain you set on the denon?
where do you want your subwoofers gain knob set at when starting REW?
So cross over set to max, Audysey disabled, gain set to 0. What about distance? What values do u set for the sub in the avr?
Hi there great tutorials. I used a toslink (optical) cable instead of HDMI to connect my pc to my receiver. When I switch to Sub cal, I also hear the signal also through the left main channel is that normal? Or do I really need HDMI
Thanks for making these DSP tutorials. Really hoping you can answer my questions! A few questions for you:
1. In the level matching section are we just level matching our subs with our front left speaker? If yes, why and why not level match with front L+R and why not level match with just the front right speaker?
I'm sure this is a super basic question, but I don't get what we're doing and what it's accomplishing.
2. Do we need to set the level of the surround speakers to 0.0dB (Denon receiver>speakers>manual setup>levels>test tone or do we leave those to whatever audyssey setup?
3. Should we run audyssey before we start this? does it matter?
4. I noticed your RMS signal level is set to -12.00dBFS. Mine was set to -20.00dBFS, should I change this to match yours before playing any test tones?
I have the same question about the RMS signal level.
I have same questions too, have you find the answer. Do you level match first and do the room correction. Please help.
@@lalithpodduturi9811 sad he nvr helped. I found some help online. You do level match first. What room correction are you using?
@@hollosym I am running Audyssey!!! If you don’t mind can you send me the online link!!! I like the Brad video but it not clear what to perform from first to last, in his video he said to match with left speaker and turn off adyssey. Watch with -30db on raw.
@@lalithpodduturi9811 the big thing he glossed over is setting the type of sweep in REW to “sub” ie subwoofer. In the end you could simply unplug your front left channel and you’re good. Just make sure you doable all room correction.
His method kinda sucks tbh, the better method is using the alignment tool in REW. Here’s a great breakdown: th-cam.com/video/8bwpLfbLiZ4/w-d-xo.html.
That guy's channel I linked above has some really great tutorials. He has a JBL SDP-55 processor so it's a tad different when talking about how to disable room correction. You can follow Brad's how-to to disable audyssey room correction on your receiver.
Great video! Easy to understand , you cut out all the jargon and keep it simple. I await EQ video 👍🏽
What are those 4, 6, 4.2, 4.8 etc numbers you're typing in? Are they delay in ms?
Great video,
Question regarding the level matching section (9:15).
After you set the volume with the mains using the receiver remote, are you disconnecting the mains to level match the subs? Or do you keep the mains active when level matching each sub?
Oh wait, I just noticed that you set the play tone to 'Speaker Cal' when volume matching and your changed it to 'Subwoofer Cal' when you level matched the subs.
@@goos3838 I was wondering the same thing. I'll have to try it and see if the left speaker is cut out and not playing during the sub cal or measurement runs.
When I set the tone generator to sub cal, I still get a signal from my left front channel. I have the receiver crossover set to 250hz. Any idea why this may be occuring. I appreciate the help!
I got same issue when sub noise is selected it coming from speaker as well.
I set the overall gain in the app to -15, what app? Min sap or REW? Can some explain? Thanks
Hello Team, I need some help darling in my subwoofers, My question is should I add a house curve in the mini DSP and then run anthems ARC room correction or just use the mini DSP to flatten the response and then add the house curve in anthems ARC room correction? I’ve tried letting the anthem do everything but I think incorporating a miniDSP will achieve better results.
I can’t move the subwoofers around my room to improve their in room response as I’m very limited with space.
Great video ! Very helpful. Was adding delay to the farthest sub. Caught delay should be added to closer one.
Purchased a 2nd SUB and a Mini DSP. Working on Time Alignment. 1) should I run Audyssey with "One Sub (the two subs connected to the Mini DSP) for it to estimate a delay/distance for the subs? 2) Once we set Audyssey to "off", do we need to change the AV Subwoofer distance to "0" too?
What about the distance my AVR has already set during setup?
Is everything done pre or post audyssey? I have read both ways? Running after would erase the work on timing right when adding delay?
Can this device be used to expand the left and right surrounds of my HT? I am planning on two rows of seats and each row having their dedicated left and right surround speakers. Therefore out of Pre pro left surround into mini dsp input one and then two out say output 1 and 2 into power amp connected to two left surround speakers. Then same setup to create two right surround with input 2 of dsp and output 3 and 4 and so forth.
In the playing of the Sub Cal --
1. Should the front speakers be muted?
2. How did you adjust the subwoofer output to ~77 dB? Changing Input gain or changing Output gain?
3. Are you measuring all subwoofers playing at the same time, ie, with all subwoofers unmuted?
4. if the answer to question 3 is YES, should the individual subwoofers first be adjusted to equal dB before measuring with all subwoofers unmuted?
I don't understand what the graph should look like, so when you say this is not good, I don't know why :) a video that explains the whole graph thing, would be great
Thanks for commenting and that's a fantastic idea!
2:00 Curious: If i'm trying to measure the subwoofer, would it make sense to completely disconnect all speakers from the AVR?
Hey there Brad - Merry Chrisrtmas to you and yours - and your channel! A question for you please - While using the miniDSP where the subwoofers are connected as out 1 and out 2 from the dsp and left sub is connected from sub out 1 from the avr to input 1 on the dsp, should the subwoofer speakerssetting in the avr be changed from 2 subwoofers (as was my case before subscribing to you and getting a minidsp!) to show as 1 subwoofer as the dsp is now controlling?- - or does it matter?
8:48 how did you do that?
Can you use MiniDsp on any Av receiver. Many thanks.
I just recently upgraded to 4 subs and ran across REW and was wanting to use it to set them up. Is it my understanding that once set up with the dsp 2x4 is complete you leave it linked between your receiver and subs correct?
how loud do you calibrate? even at -20 db on my receiver I was not getting 75 db C weighted random pink noise in my Umik1... test sound is not clean. it is sparkly. music sounds like it should..
Very helpful Brad! I have a Denon receiver and 2 SVS SB300’s (love the app). Working to get them tuned up. Zildjian. I play them too.
Rew is not recognizing my marantz in the soundcard preference. It only gives me a choice of default device, primary sound driver, speakers ( minidsp 2×4hd) or speakers ( 2 high definition audio device). Any ideas on how to it would recognize my marantz?
Great videos! got everything set up up until level matching. I'm not getting any sound from any of my 4 subwoofers when I'm running the SPL meter. Please help
Jl audio cr1 crossover vs mini dsp? Is one more preferred? It seems like with minidsp, there is a lot to learn and the jl audio crossover not as much. Any thoughts?
Question: I have followed your steps. I have an Anthem MRX720 and set all crossovers to 250Hz. In REW, when I run a measurement with the setting 10Hz to 200Hz, I still get sound out of my front left speaker. Can you give me some insight as to what I am doing wrong?
Before you start calibrating subs.. where does the gain volume on the sub start eg half way point 12oclock?
Hi Brad, thanks for this series...it will be very helpful when my Umik and MiniDSP arrives later this week. One question, though, is since you are running your subs off the miniDSP, before you measure do you adjust the sub distance to 0.0 ft in your Denon since the miniDSP is handling the delay?
I would recommend taking the Denon out of the signal path at first. Connect an audio cable from your laptop to your Input 1 on the MiniDSP (this is where you'll connect your Denon subwoofer out), then the outputs of the MiniDSP to each of your subs. Set the timing of the subs relative to each other and make adjustments (including individual PEQ for each sub) within the MiniDSP. Once you have the subs set up to work together as a team, then you include the Denon. At that point, you can use the Denon's Audyssey mic to make timing measurements for all of your speakers, to include your unified subwoofer team. This is important, because the Denon will see all four subs as only 1 sub, so it's critical that you just focus on getting them working as a team. You will also need to do level matching again once you have all of the subs connected to the Denon.
What if there is no drop down for Java? Am I missing a software driver install somewhere? I just see sample rate
I can't get new to play the sub tone. I have set xover to 250hz . when I press play and L is selected then the left speaker plays, if I choose lfe then almost no sound from sub although plenty of sound if I use avr test tones
I am running a Yamaha RX-V685 and I'd like to connect a Crown XLI 1500 to it but I've read that I need a ART CLEANBoxPro Dual-Channel Level Converter. do I still need the clean box if i am already getting a Mini dsp?
Great video this inspired me to give calibrating my subs another go.... I use a Mac so somethings are different so that’s tripped me up a few times in the past with other tutorials ... but I think this video shows some details home theater gurus didn’t really make clear. Thanks for the upload!
I bought this thing because this video made it look easy. I'm sure it would be if my steps were the same as the ones in the video. Did anyone else have this problem?
Would the audio frog umi-1 for cars work as a mic?
if you get a laser tape measure and sit in your lisening position and point at the sub from about where your ear usually is. then calculate from the lenght how many ms it takes for sound to travel well at the speed of sound. now say you have a sub behind you measure the same distance and and calculate the same way the ms but take it away from the previous results. this should make it so sound hits you at the same time if the subs play it at the same time. so thats a really good starting point for time alignment
After turning everything off in the receiver and setting the sub level to zero, what is a good general distance for the subwoofer in the receiver to start measurements? Should you just pick one that gives you a decent response to start with?
Hi...did you tried 180 deg phase on back sub
Why are sweeps done with just L speaker on rew and not L+R?
Brad help!!!! Why when I want to run my subwoofer sweeps am I only getting the sound from my front left channel?
Seems others have had some similar issues too without any reply.......is there not an answer to this?
That’s really interesting. I’ve not run into that problem. Are you using ASIO4ALL? If you are, try switching to JAVA or using output 4. Also, if you’re speakers are set to large in your receiver, or your receiver is in DIRECT or pure mode, then that might be why as well. You want it set to STEREO or Multichannel Input. And make sure you speakers are set to small.
I’d verify all of those things and see what the results are. Sorry I can’t be of more help as I just haven’t experienced that issue.
@@HomeTheaterGamer I have tried everything under the sun. Speakers are at small, levels are 0.0, Audyssey is off, stereo is selected,
Switched the Denon back to 1 sub. Using Java. 🤷♂️.
Thanks for replying 🙏
@Ryan Lewis just so I’m understanding you correctly, you’re not getting any sound from your subs at all, correct?
I’d also make sure to verify that on the MiniDSP software, under the inputs and routing section, that ANALOG is selected. Mine defaulted to USB. Also make sure that all Xovers in the Outputs tab are bypassed.
@@HomeTheaterGamer I have everything set as you just stated. I am getting sound from my subs but also from the mains when setting SPL levels.
But, When I take a measurement in REW the subs are not working, just the main as my lowest frequency is 38 which is on par with the RP-8000F.
@@78rlewi I'm having the same issue. When I'm attempting to level match, my left front channel outputs pink noise with the sub cal setting. I'm not getting any noise from my subs. Have you figured this issue out, by any chance? Thanks!
Will pb1000 (old version) and pb200proor pb300 work together using minidsp? I have two old pb1000 but i would like to add more powerful sub
So glad I watched the video earlier with you and #Youthman at his house and then followed the link to using the Mini DSP with 4 subwoofers. Thank you for all the help!!
I'm not getting any sound from subwoofers and I've checked to see if I've done it the same. Any ideas
Hmmmm. On the input tab, double check that ANALOG is selected instead of digital or Toslink. I recently helped a friend set up his miniDSP and was surprised that his defaulted to Toslink.
Something I've seen kind of unclear, after disabling room correction, setting sub gain to 0, and XO, do you do anything with the old distance levels or leave them where they were? Thank you!
I typically don’t touch the setting unless there’s something REALLY wrong with the final output that is not correctable when you get to the main to sub time alignment stage. The sub distance itself is nothing more than a phase setting/alignment setting for sub to main integration, which can be done in the miniDSP software.
@@HomeTheaterGamer Just confirming during the measuring and setting up dsp, you leave the old sub distance alone on avr? No need to set to 0 like the gain?
@@YourMovieFix If you have an AVR with a microphone that can do auto measurements, I would recommend using it again AFTER you have set everything up in the miniDSP. This is because all of the changes you make in the miniDSP, especially timing delay, will change the distance that your AVR calculated before introducing the MiniDSP. Even the miniDSP itself adds "distance", because there is a process of ADC (analog to digital), DSP (digital signal processing), and then DAC (digital to analog conversion) that takes place. It is fast, but it may introduce as much as a 1ms delay...which is about a foot of distance. Timing is insanely important; while it can help with SPL, it is critical for sound clarity and coherence. It's the whole reason why expensive AVRs come with microphones in the first place.
Hi- why not use the individual trim level to set the 75db level for each sub?
I can't set a crossover to my mains and i have my sub crossover set at 40hz. Should I raise my subwoofer crossover and turn off my mains? Please help
Thank you, brat, for the tutorial.
I can see many people facing problems when they play (SUB Cal) test tone the front speakers play sound with the sub.
If anyone wants to play (SUB Cal) tone from the mains only without the sub they have to put the front speakers to Large instead of small.
If you put the speakers to small the mains and sub will play the (SUB Cal test Tone) at the same time.
Hopefully, this will help,
For measuring the subs the way Brad is showing then its correct that the front Left speaker also plays the test tone along with the sub of choice? Because thats what is still showing below in the app. Also, what should the gain knob on the back of the sub itself be set to?
Awesome video. Thanks for sharing. I gain matched my mismatched subs like in home theater gurus ep 8. Would you recommend gain and level matching or is gain matching alone sufficient?
Great video! What volume do you set your receiver to when level matching?
@Alvin Cole I just raised the volume on the receiver until the left front channel reads 75dB on the SPL meter when playing the "SPEAKER CAL" tone in REW. That's it. In my case, that ended up being -17.5dB on my Denon X2300W.
When you match the subs I am having to really adjust the level like in the -20 range. Do you think that is normal? All my gains on the subs are set to 1/2 or almost 1/2.
Can I use minidsp to calibrate 2 subs on emotiva rmc-1? And how
Hi Brad!
Not sure if you'll see this comment, but would all of this work with just using one subwoofer in the minidsp?
Hi should I be leaving the output to the left channel (L) when measuring levels on my sub? Or should I be changing the output to LFE? Although I have raised all crossovers and disabled DSP (I think) in my Yamaha receiver I am still getting output from my main channel when using the L channel for the test. Even with the REW setting changed to sub. Not sure if I am perhaps missing something in the Yamaha or if I should switch it to LFE for measuring the level of my sub (I only have one). Thanks for any advice!
Same here with my Denon receiver
Why not level match the subs using the sub gain control? Why in DSP?
My friend, do you think this device can help solve the problem of watching movies? that problem with low dialogue and very high action scenes? Is it possible to leave everything in the same volume? I use the optical cable TV/soundbar subwoofer connection via Bluetooth. Please my friend help simple soundbar 2.1
I've followed the first video and this one to a T, but I can't get sound to play out of my subs. Minidsp is connected, subs are hooked up and on, etc. When I select sub cal it play through my speaker that the speaker cal did.
I'm having a similar issue. My front sub will play pink noise, then for the second output on the rear sub, my Left front speaker plays. I'm lost.
Okay, I had it in Direct. I switched to Multi-Channel Stereo and problem solved. Hope this helps the next guy.
When you gain match, do you keep the distance from listening position the same? In my room the Front Sub is 11-9 away and the rear sub is 7-6 away. Does it interfere with the delay time?
I wouldn't worry about the distances too much as time alignment with the miniDSP will take care of that. It shouldn't interfere with the delay time at all.
Cool. I just bought 2 Monoprice THX 10s so I will have to try and gain match them and see how that sounds.
I believe it is generally suggested to set the sub level to -6/-5 due to potential clipping. I just finished building two Stereo Integrity HT18's last week and set them up with with the 2x4HD. After getting them roughly calibrated with the sub out set to level 0, when playing edge of tomorrow at 0db Master volume on my denon x4400h, the subs were clipping. Turned the volume down to -5 and clipping went away. So I turned the sub out down to -5 and turned the amp up to compensate. Now at 0 on the volume there is no clipping. Didn't try to go louder but I would agree that the sub level should be set to -5 as stated I the avsforum subwoofer setup guide. But overall these videos were very helpful!
I think I'm getting this! Thank you
Great video! I just bought a UMIK-1 last week and followed your video to get some sweeps of my sub. If I'm running only 2 subs don't you want to add delay to the second also? If they are about the same distance? I'll be adding a second soon and curious. Looking forward to the next video I'm curious on what to do next as far as calibration with audyseey and if you run it next. I like to run my subs hot usually over 80db to get a final trim of -11. 5 maybe some of this will be answered in the next video 👉. Also one more question I have 2 sub outs on my denon should I run just one to the DSP to control my 2 subs? Or both sub outs to the in of the DSP ?
Just one sub in, mini dsp will split the signal internally.
Hi thanks for the explanation, why are you using the 90 degree mic cal file if you are calibrating in stereo ? I read in the minidsp that the normal file is to be used when you are calibrating a single speaker (like a sub) please let me know if I got this wrong.
Since he is measuring three speakers in a HT set-up, the mic is in the vertical position and the 90deg cal file is for that position. If your are measuring a single speaker "near field" for it's performance or a stereo 2.1 system you use the mic in the horizontal position and the 0deg cal file. I hope that helps.
@@welderfixer thanks
This is a great how-to video! So glad I came across this - thanks for doing it for us. I will be using this when I get to this stage of my theater build for sure.
How's your theater now?
@@madcrabber1113 It's awesome! But I'm sure I'm biased a little bit 😉 If you search my name in TH-cam you'll find my channel to my build.
How do I get my subs to play louder without turning all the gains up?
I don't get the same curves when switching between java and FlexASIO when measuring. Anyone knows why that is so?
Folks, at time stamp 8:54, make sure you select “sub-cal”! I was so confused for a bit!
Thanks for that tip! Definitely an oversight on my part.
Doesnt matter, on my denon the left speaker is still playing.
Thanks! He should edit a note on that:-)
Brad, curious. what would you set the distances to in the AVR? I have 4 subs. 2 in the front corners and 1 on each side of my couch. If 2 are 10 ft away and the rear ones are 7 feet away is that what I would set them to in the AVR distances tab?
That's a good starting point. The sub distance settings aren't really related to distance, though. They're essentially an alignment adjustment so they blend with your mains better. If you have REW and some free time, use REW to to measure different settings for each pair of subs and pick the one that gives you the smoothest response at and around the crossover point. That will be the optimal distance setting. I'll be doing a video about this soon. Possibly even this week.
I guess what I'm curious on is in the mini dsp the 10 and 7 would be good starting delay points ... but in the AVR I would leave distance/ delay at 0 since the dsp will be handling that correct? oh and in the level matching.... what did you set the subs gain knobs at to start with
looked at all 4 parts, perfect info, my system now sounds perfect, follow everything accurately and you will enjoy a perfect and controlled sound
The the master volume meant to be at ref? 0db?
It can be but not needed here. If you do want to run it at 0dB, then you'll want to change the tone generator and measurement volume to -30dBfs. Otherwise, you could damage your equipment and possibly hearing running those at REW's default of -12dBfs.
Great set of videos very useful! I have a question though I've set the crossover in the receiver to 250hz but when I play SUB cal pink noise I hear it through either my left or right speaker as well as my subwoofer. It throws off my calibration to 75db because its so loud from my main speakers.
I have the same issue. I set the crossover to 250hz in the receiver, but I'm getting pink noise from my left channel. On top of that, I'm not getting any noise from my subs. I see a rise in the output meter in the MiniDSP plugin, but no sound. I don't have them muted. Not sure what's happening there. By any chance, have you solved this issue?
I get the same issue. I've got the crossover in my Yamaha RX-A2080 set to max 200hz on all speakers, yet I still get output from the left and right tower speakers rather than isolating to the subs. Hope someone can help
@@mwstorms21 My issue turned out to be a problem with my SVS subs. I wasn't getting any sound from my subs, and the receiver was directing the sound to my mains. I had to reset the subs to get them to pick up the signal. For calibration, I believe that you'll get noise from the L or R mains (which ever is set to receive the signal in REW), but above the crossover set in the receiver. When you run the frequency sweep, the sub should output the signal up to the 200hz. As for the pink noise, make sure the sub is receiving a signal. That was my problem at least. I know everyone's issues are different, but I hope this helps a little.
@@degicank22 same exact problem here. I think he left out a step
I got the same issue with my SONY avr so I just unplugged the speaker cables and then I got the sound from subwoofers only. It could be some simpler thing going on I just can’t figure out.
Bro 👍👍👍👍👍👍👍 keep em coming Im learning so much. Thank you thank you thank you
Why would you use the left speaker to level match and not the subs? And how did you even play a test tone to the normal front L speaker with only the 2x4 hd?
The left speaker is only the reference point, as we need to know what volume to set the subs at relative to what your speakers are playing, and this assumes that you’ve level matched all your speakers as well. If your speakers are all level matched to say, 75dB, then you want your subs playing around that level, but a bit more if setting a house curve (see my other response for a quick explanation as to why).
@@HomeTheaterGamer thanks a lot for the response mate. I actually completely missed a step. I didnt catch that you need to connect rew via hdmi to the reciever to play tones to the front speakers. Thanks a lot
So yeah
1) set volume of avr with fronts
1.5)find sub position
2)level match subs
3) time align subs
I am sorry that I typed so many messages :D
After you level matched the fronts and sub you disconnected the fronts right? For the actual time alignment and Level matching of only the subs
@@HomeTheaterGamer So only one thing left unclear for me. When do you turn off the front speakers? When measuring subs to be sure only the subs are responding?
I just ordered mini dsp hd because I have two subwoofer 🔊 now denon 7.2 channel atmos receiver two klipsch subwoofers 🔊
I noticed that no Phase adjustment was done in the minidsp. Is there a reason why you didn't?
There is a reason. Adjusting phase on the subwoofer itself or adding a time delay using the miniDSP both achieve the same thing. Time aligning is basically adding a delay to one sub to match another, which is essentially what the phase adjustment on a subwoofer does (adding a delay to the input signal). I chose to use the miniDSP as it allows for far more granular control down to a 10th of a millisecond and I also find it easier overall.
Great information 💪🏻🤩😎
Can you tell me why you set the sub to 0.0 in the Denon ?.
We want full control of the level within the miniDSP and don’t want the AVR adjusting the signal at all. It’s basically taking out any variability. You can theoretically have the sub level set to anything in the AVR and as long as you don’t change it, you’d be ok. But, if you set it to -3dB in the AVR, you may end up having to boost it more when doing EQ or after the fact as EQ tends to bring the level down ever so slightly. I’d avoid going over 0dB sub level in the AVR at all costs though as it may introduce distortion and clipping depending on overall volume.
@@HomeTheaterGamer I set the sub to 0.0dB in my marantz. But after running Audyssey it has set the sub to -10db ?
@@Prevstar The -10dB is showing that the "gain" setting on your sub is set higher than Audyssey was expecting, so Audyssey set the AVR output to -10dB to bring the volume level of the sub down to the level it needed. There is thoughts that say that your setting is actually a good way to set up subs so the sub has more available power to the driver and isn't held back by the gain setting being low. Having the gain on the sub high and AVR set low or in the negative is like having a V8 engine when all you are using is a 4 cylinder amount of power. I hope that helps.
Is that dsp which makes annoying noise and has low tabs?
Not that I’m aware of. I’ve had no issues with noise at all (it’s dead silent and there is no audible noise coming from the subwoofers). I’m not sure what you mean by low tabs. Could you elaborate?
Great Video ,super !!!!
Greetings from Austria !!!!!
Why wouldn’t you have set the receiver the ref level 0db and the. Calibrate to 75db on subs
Where did you place your mic for each sub?
Listening position for all.
why doesnt your do eq first and then time delay ?
It’s not giving me option to select denon receiver
Nice tutorial but I am stuck with the HDMI out from my receiver to my laptop which I don’t have a HDMI in
In that case, you’d want to use something like a 3.5mm to RCA cable from the audio output on your laptop to the stereo input on your receiver. Similar to this one: amzn.to/3yP8oH8.
@@HomeTheaterGamer I also will have to use a 3.5 to rca from laptop to receiver. Where do the rca’s plug into the receiver?