@@keehud333 no, that will just offset less cutout point on the lower frequencies to the sub to have more power at a lower volume/gain level is all. Amp only puts out what it can do with the proper tune
@@JacobViral2 ok thank you. I think I just need to add more volts to my system for more power. I'm only using prolly about 40% if that on my amp. I'm runnin all factory units right now. 2k is my max at the moment
If you have issues with overheating of your amp and you dont want RF interference from a cooling fan, try putting rubber spacers on your mounting screws between amp and mounting surface. It will keep the amp away from surface allowing heat to dissipate all of the way around the amp. Mounting surface could insulate the bottom of the amp holding in heat and possibly damaging amp components.
Use gain to adjust to keep your speakers from bottoming and keep subsonic off for 12s and larger. Turning that subsonic dial clockwise at all makes you lose low end output period. Subs are mostly meant to play low unless you’re using 8s or 10s. Then I could see turning it up a hair. Never had a problem in 35 years this way. Now, the low pass filter “features” the number it’s set at with more volume versus subsonic. Subsonic just cuts off below where it’s set at. But a slight roll off starts higher than where it’s set. Hope this helps. Oh, and Bass boost shouldn’t even be on amps period. Keep it off.
So Basically I blew My Subs? I turned up the subsonic to tune my system to what I want it & Now My Subs Play for 30-60 seconds then Cuts out. my Amp is not Blew nor in Bridge Mode.
Being as I have recently as January gotten back in the car audio world I have so much to learn and I get really confused when it starts getting into these types of topic areas. Basically learning to have everything matched from Head Unit back to amps and all in between. Learning slowly, but learning none the less!!! Thank you for another insightful video!!!
The actual best setting for the subsonic/infrasonic filter is the one that limits ultra low frequency excursion to prevent damage. A side effect of this is that you are now drawing less current when playing those ultra low frequencies meaning less voltage drop and possibly more average power in your supply. This may lead to slightly higher dBSPL numbers but is unlikely to be noticed by most. I would recommend finding the frequency where the sub begins to unload and have crazy xmax and slowly turn up the volume until the sub begins to reach close to xmax but there's still power you can add. Then adjust the infrasonic/subsonic filter until the xmax drops then repeat with slightly more power until you reach max power and the sub is no longer exceeding xmax below tuning at whatever frequency was ideal to pick for your setup. If for sub for example is tuned to 35Hz and it will begin to exceed xmax at lets say 25Hz then you should probably have a filter setting around 25hz or so to cut off that low bass a bit so it doesn't damage your sub. It will also put less power into the coil at low frequencies so maybe you can get a touch more power in the higher frequencies that the sub can play leading to more dB.
It is a sweep you need to play music and adjust the subsonic because if the sub is moving to much in relation the enclosure it would disrupt the air in the port reducing higher tone output. Some people dont know that it is the air in the port that vibrates and make sound. Especially if the sound have low and high tone.
A lot of great info there! You got just about everything right. The subsonic filter comes into play ONLY if the amp receives frequencies that are below the lowest tone the sub can produce at 3db down. AND, the filter only comes into play IF there ARE frequencies present in the infrasonic range. Using a good signal generator should not produce any frequency other than what it is set to. If harmonics are being generated in the signal chain, then you have a problem. Another thing, what is the slope attenuation of that HPF (subsonic filter)? I bet it's no higher than 6db/oct. So, as you set the level up near your fundamental tone, it may be already sucking the level down! You want to be anal about this? Get an "O" scope and look at the waveform levels while you play with the filter. A subsonic filter shows it's colors when playing a warped LP on a home stereo. The subsonic cone movement in the woofer can be crazy bad!
At the end of the day we want to be louder but what i got from this is that its mostlikely best to set the subsonic before i set the gain because changing the subsonic later would change the output voltage.
@@anglerandy573628hz is subs resonance fs. subs will play below the fs and also box frequency by around 6 to 8 hz. You need to be able to tune by ear. No vehicle and system are the same so I can't just say yeah set it to a certain frequency without hearing it. Start with the subsonic set to 30 hz, You'll need to turn up the volume where you think it's kind of loud but still sound clean. Turn the dial on the subsonic counter clockwise until you can hear that sweet spot. You'll end up with the subsonic set lower than your box tuning. Also Maybe this will help , the lpf (low pas filter) filters out the highs to the sub and the subsonic filter's out the lows.
@@filibertofonseca8083 then what does the high pass filter do? It's a 3.2 cu ft box with 1 dayton max x 12" 28.4hz resonance sub. It sounds good on lows like it is resonating cleanly and making the car shake but what sounds like higher bass tones make a slapping noise that sounds bad like a hammering??box is tuned to 32hz but it was for a sundown z and x not this sub. Thank you for the advice.
At about a half an octave below enclosure tuning, subwoofer output will begin to diminish. At just below tuning, the driver will begin to "unload", and excursion will increase. I personally recommend setting subsonic about one quarter of an octave to one half an octave below enclosure tuning. This will vary, depending on the slope of the subsonic filter being used. I am using a DSP which affords different slopes, or dB per octave. The steeper the slope, the lower you can set it without damaging your driver. Always remember that the lower in frequency you play, the driver will want to naturally move farther anyway. When making your adjustments, start out high, then work your way down, observing excursion and listening for mechanical distress. Cheers dude!
I hear too many people's systems that don't understand this concept. Yeah it might hit hard but this next hit right after that sounds like a fart. Without properly adjusting the subsonic the speaker cannot return to original position to throw again in time for the next hit. I also am like you in the respect that I would like to hear not just the base but the instruments and the vocals setting the subsonic helps tremendously. I also have tweeters and not the kind that comment on stuff LOL
@@JacobViral2 But of course. You're good at making vids and sharing info. Accidentally unplugged my stereo fuse. Gotta re-tune from scratch w/ no O scope or anything so this helps bigtime!
Thanks for the video. Love how you are using the sound deadening for your vehicle. Better carpet is also a way to get sound deadening in your car from the cheap OEM stuff in most cars. You can also add padding under the carpet, just make sure to get the stuff that is "fireproof"! Though it can be a bit pricey works great.
Most subsonic filters are just a high pass filter and on many amps there's no mention of the slope. If they had a super steep slope they'd be great for precision limiting, but I prefer leaving them off and controlling low frequency extension at the deck. If your setup is loudest at 45-50hz for spl purposes, a Subsonic filter is the quick way to chop out the frequencies you don't want sucking your power away. For SQ, leaving Subsonic filters off is best IMO.
Why not set the subsonic filter CORRECTLY instead of just guessing on the analog knob? Many amps are not accurate on their markings and "eyeballing" it is totally wrong. First set your gain correctly, then set your low pass filter. To properly set yoir subsonic filter, do the following: 1. Turn subsonic filter OFF by setting it all the way to the left at the lowest setting. 2. Play sine wave of desired subsonic setting, for example 25hz. 3. Using a multimeter take note of your voltage you have from your test tone. 4. Multiply your voltage by .707. So if I saw 40 volts I would multiply it by. 707 giving me 28.28 volts. 5. Turn up subsonic filter until you reach this voltage, subsonic is set.
@@angelvip2474 That is another option yes, but my point being was that there are very easy methods to correctly set the subsonic filter without any expensive tools. Not everyone owns a DD1, and they are quite expensive especially if someone will rarely use it. A multimeter can be purchased for 5 bucks at harbor freight and does the job fine as well.
Dennis Randolph I absolutely agree with you bro. It is also good to know the procedures ,the how and why it works not just winging it. You did a great job explaining the procedures. I was just being a lil smart ass😂👍👍
@@brian3364 28.28 just happened to be what the voltage would be in the example I gave. You pick a subsonic setting you are aiming for (25 hz is usually a safe bet if you want me to make it easy for you) and then find your baseline voltage reading you have with the subsonic filter turned all the way to the lowest setting. So I gave an example of 40 volts as a baseline reading, you'd play your 25hz test tone, or whatever frequency you are wanting your subsonic filter set to. With the subsonic filter set at the lowest setting (turned all the way to the left) you get your baseline reading. If for example you saw 40 volts then you would multiply that number by .707 giving you 28.28 volts in our example here. Turn the subsonic filter up until you reach that voltage and you are all set. It is quick and easy! Just make sure your subwoofer is disconnected while doing this! You don't want to potentially damage it blasting ultra low frequencies through it while you are setting the filter initially. Alot of people like to set their subsonic to 5hz below their box tuning, I personally have always just used 25hz and it works perfect. Your low pass filter can also be set using the same method of getting baseline voltage and multiplying by .707 as well, using an appropriate test tone. Only difference is the knob would be turned all the way to the right to start.
Jacob makes a solid point, and the demonstration of it is nice to see. I feel that the emphasis should be placed on what we did not get to see: he set the gain after the process we saw, I can't help but think that it would have been a stronger finish to test the final result in the same way for total emphasis besides the drop in decibels post procedure. Many simpletons will take away from the clip that you can use the subsonic to get a bit more db but just don't keep it there. I have been one of them in my checkered past🙃
Jacob turn it up so you can get people to see how much louder this method is. I like that you figured out how to stop that small subwoofer big motor sub from bottoming out can't wait to see it all the way up with your adjustments.
Dude thanks for making this video. I been trying to explain to sooooo many people how much this matters and they act like since they can’t hear it do anything that it doesn’t mean matter and since most music isn’t playing anything that low then the sub or amp won’t still try to play those hz
Dude your content is really good. Well spoken, good flow, informative. You should have more subscribers. That's not an indictment on you, rather us in the community. We need to share you more. You should be getting paid for this. I'll do my part 👍
Exactly.... I run 12s and subsonic takes a lot away from the good, rich deep, bass im pushing now and I have a small system but the sound quality is good and I didn't spend an arm & leg on equipment, plus I am only running 1200 Watts, so no need for an extra battery or upgraded aftermarket parts either, just make sure you run it correctly and you shouldn't have much of a problem with it.
Thanks for the video. A little side note, after every screenshot you don’t have to go into it and press save to photos it already saves for you if you just swipe it off the screen to the right
Bro I feel you and appreciate your video and your intention. Totally respect it. Just keep in mind that you cant use a cell phone and accurately get a proper SPL reading. You have to use a legit SPL meter. Especially since your tests show +/- 1.5 db difference could be as simple as the the app SPL error range. But I agree with you as far as protecting the Sub you should definitely want to have your subsonic set accordingly to the subwoofer specs.
Anyone who is worried about an SPL score probably already knows what subsonic is and how to set it. People who just have an amp and sub in the trunk of their everyday ride will probably need to know what it is and whats the best way to set it for good sound quality. Just saying.
I have 8's box is tuned to 30hz my subsonic is all the way down. I think it sounds perfect to me. But not looking for high numbers anymore. Just nice clean sound
Very useful information,I need more learning on this but ,I do have a ear for my adjusting however to know the correct way is always the best way.✌🏾Thanks I will be watching this again when I retune my amps.
This is a just a tool I use to adjust different things.. lol Plot twist: it’s reallly a bong scraper 😂 bruhh you the best I wasn’t sure if I was the only one who noticed!!
Looks like a feeler guage to me. Ain't nothing wrong with smoking herb but you gotta have hobbies other than just smoking herb otherwise you just end up throwing away your brain...
It really depends on what you are wanting. For me I like getting the biggest amplifier possible, use one sub per amplifier. I turn my gain and bass boost all the way down. I have powerful enough alt, bat, and caps to maintain 15v at max volume.
It would be nice if instead of just giving you the highest and lowest setting numbers to have at least 3 points of the in between number like yours lowest is 10 highest is 50 there should be a 20-30-40. But eh I doubt they’ll listen. I just tune carefully and just rock 4inch coils. But I’m picking up my custom pair of Solo X 18 motors on 15 inch frames it’s a 3.5 coil but better then stock and my builder made them especially for what I play at 28-18 hz. Not a cheap pair of subs but worth it. Can’t wait till tomorrow afternoon!!! Update-subs still not ready a bolt snapped on one of them so it delayed the build on of of them. EH... there worth the wait!
Subsonic should be set just below your port tune frequency. Any notes played on your subwoofer that are below port tune cause the box to unload and essentially your speaker will behave as if it is in free air. And that damages coils
Manuel Barrientos generally take your enclosure tuning and multiply it by .75 and that’ll give you your subsonic. I would set your subsonic to around 22hz
So u gotta pretty much guess ur subsonic hertz? Like from the notch you just go to where you feel it’s supposed to be at and where it looks like it’s at?
Subsonic basically cuts off the frequency, I love low frequencies, it shakes almost everything including my windshield. So I set it to off cause I like to get only low bass, not high mid bass.
I know this video is old but most people are tuning their enclosures from 35 hertz to 29 hertz?My 99Dd 21 frequency is 26 hertz?And my enclosure is 32hertz?So my subsonic filter is set at 25 to no higher than 30 hertz no problems
How would I go about choosing a battery? I'm thinking of a amp that delivers 1500 rms (mono) and a 4 ch amp at 300 rms. I only want one battery that can also power two fans. Would I need to change the alternator and my electrical?
Big 3(4) to do of course and it would depend on if you want AGM or Lithium. If AGM I would go with a group 31 for 1,500 watt RMS System personally should do fine with what you're doing.
I’m using a PB4800 Energie batt as a secondary for my amp and it’s amazing. I’m running a VFL 2k rms amp with 2 Audiopipe bd2s and it works great also not super expensive
25Hz to Life I use a platinum series duralast agm for 2000.1 skar amp it’s been fine might add a cap just because I plan on adding light bars so for something like that you should be good without a cap but you could always add it for more stability
Only on a class d amplifier and if your ported box is tuned to 45 hertz if it is tuned low it doesn't matter and you don't use a subsonic filter on class ab amplifiers
You mentioned someone turned to 30hz would set it around 3 or 4 o'clock instead of 1 to 2 but the lower the tune, the lower the end result so wouldn't that me a 30 hz person would set it between say 11 and 12 oclock?
On a ported box you set it near port tuning. Keeps the cone under control as the box will not below port tuning(unloadeding/free air). this can be found by doing a frequency sweep and seeing where the cone movement is the least that’s right around tuning that’s right around where you want your Hipas set. If you are not using enough power to exceed the drivers x max its not necessary but still recommend as more power will be utilized in the drivers usable range. On sealed enclosures, In vehicles with a high transfer function u can actually have too much low hz content and can use this to eq it out. I do this in my daily, sounds way better and gets louder cleaner.
So because you use the subsonic in the correct range based off of your application, are you suggesting that you could slightly turn the gain up more (safely to squeeze more out of the sub) versus tuning somewhat conservative because the subsonic filter is off/lower than what the sub "should" play?
I need help, I got a phoenix gold rx 2 500 amp with power bass 12”subs, first time getting a sub and amp, and I want my bass to actually hit. I keep seeing videos, yeah they explain the frequencies, gain, sound, etc. but what I’m looking for when tuning is what do I need to turn and adjust for more BASS, idc about the sound, distortion, loudness, etc, my main goal is BASS. Do I need to upgrade my amp to get more bass? Play with the knobs? Or should I get new subs and amp??
lots of variables from your box, port tuning, music played, electrical battery/alt power supplied, amp rms rating, subs etc. I would say you need to consider all these and go from there. Feel free to message me on instagram/facebook jacob viral and I could give you guideance
hi i need help my amp says LOW PASS FILTER 50-250 is this a good or bad amp? and can it hit below 50hz? this is a 4000 watt planet audio? some amps says 20hz or 30hz LPF ... please explain detailed, i guess what im really asking is can this amp hit 30hz or 35hz ?
Do I need to use the subsonic filter if I'm using a dsp to set the hpf? My subwoofer specs are 25-250hz, so I set the hpf at 25hz and no slope in the dsp. Also, what is the best way to set gain and lpf for a subwoofer?
I have a question so as u where saying u wanted to have the subsonic half of what the tuning should be so if my box is tuned at 32 hertz would I want the subsonic at 16 hz ?
So i have this same amp on two trinity 10s in a series tuned 6th order. Im trying to get this amo tuned so bad before i mess something up. Any help is much appreciated!!
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How to set the tune if i like the bass can crawling the ground? Specially the tuning box? Is it 35hz? Or 40hz?
Mitsumi pdf f250
Are you saying that if you turn the subsonic off or as low as it can go I get more output from my amp?
@@keehud333 no, that will just offset less cutout point on the lower frequencies to the sub to have more power at a lower volume/gain level is all. Amp only puts out what it can do with the proper tune
@@JacobViral2 ok thank you. I think I just need to add more volts to my system for more power. I'm only using prolly about 40% if that on my amp. I'm runnin all factory units right now. 2k is my max at the moment
If you have issues with overheating of your amp and you dont want RF interference from a cooling fan, try putting rubber spacers on your mounting screws between amp and mounting surface. It will keep the amp away from surface allowing heat to dissipate all of the way around the amp. Mounting surface could insulate the bottom of the amp holding in heat and possibly damaging amp components.
Use gain to adjust to keep your speakers from bottoming and keep subsonic off for 12s and larger. Turning that subsonic dial clockwise at all makes you lose low end output period. Subs are mostly meant to play low unless you’re using 8s or 10s. Then I could see turning it up a hair. Never had a problem in 35 years this way. Now, the low pass filter “features” the number it’s set at with more volume versus subsonic. Subsonic just cuts off below where it’s set at. But a slight roll off starts higher than where it’s set. Hope this helps. Oh, and Bass boost shouldn’t even be on amps period. Keep it off.
It depends on the enclosure and sub. Subsonic protects the sub from over excursion at frequencies below the enclosures capability.
I have been having problems with my amp settings I will try this thank you
So Basically I blew My Subs? I turned up the subsonic to tune my system to what I want it & Now My Subs Play for 30-60 seconds then Cuts out. my Amp is not Blew nor in Bridge Mode.
Bass booster is like dope lol everything’s fast
@@MarquiseBeatz__ sounds like either a weak ground or your amp is getting hot from lack of air flow.
Being as I have recently as January gotten back in the car audio world I have so much to learn and I get really confused when it starts getting into these types of topic areas. Basically learning to have everything matched from Head Unit back to amps and all in between. Learning slowly, but learning none the less!!! Thank you for another insightful video!!!
The actual best setting for the subsonic/infrasonic filter is the one that limits ultra low frequency excursion to prevent damage. A side effect of this is that you are now drawing less current when playing those ultra low frequencies meaning less voltage drop and possibly more average power in your supply. This may lead to slightly higher dBSPL numbers but is unlikely to be noticed by most. I would recommend finding the frequency where the sub begins to unload and have crazy xmax and slowly turn up the volume until the sub begins to reach close to xmax but there's still power you can add. Then adjust the infrasonic/subsonic filter until the xmax drops then repeat with slightly more power until you reach max power and the sub is no longer exceeding xmax below tuning at whatever frequency was ideal to pick for your setup. If for sub for example is tuned to 35Hz and it will begin to exceed xmax at lets say 25Hz then you should probably have a filter setting around 25hz or so to cut off that low bass a bit so it doesn't damage your sub. It will also put less power into the coil at low frequencies so maybe you can get a touch more power in the higher frequencies that the sub can play leading to more dB.
thanks dude.. This applies to all enclosures? Even 6th orders?
Am kofi from Ghana , you have been very helpful with the subsonic setting,now my system sounds better than the first time 👍
It is a sweep you need to play music and adjust the subsonic because if the sub is moving to much in relation the enclosure it would disrupt the air in the port reducing higher tone output. Some people dont know that it is the air in the port that vibrates and make sound. Especially if the sound have low and high tone.
Can’t believe how good the bass sounds through your mic and out into my super cheap earbuds(Tozo T10). Sounds so clean.
Nice thanks for watching and subscribing
bro i was watching this in my car and my skar zvx-12 was going insane
i never thought subsonic would affect the high frequencies like that. learning every day.
A lot of great info there! You got just about everything right. The subsonic filter comes into play ONLY if the amp receives frequencies that are below the lowest tone the sub can produce at 3db down. AND, the filter only comes into play IF there ARE frequencies present in the infrasonic range. Using a good signal generator should not produce any frequency other than what it is set to. If harmonics are being generated in the signal chain, then you have a problem. Another thing, what is the slope attenuation of that HPF (subsonic filter)? I bet it's no higher than 6db/oct. So, as you set the level up near your fundamental tone, it may be already sucking the level down! You want to be anal about this? Get an "O" scope and look at the waveform levels while you play with the filter. A subsonic filter shows it's colors when playing a warped LP on a home stereo. The subsonic cone movement in the woofer can be crazy bad!
At the end of the day we want to be louder but what i got from this is that its mostlikely best to set the subsonic before i set the gain because changing the subsonic later would change the output voltage.
He didn't do this. I have a 32 hz ported and a dayton max x 12 28hz what do I set my subsonic to, 31.5?
@@anglerandy573628hz is subs resonance fs. subs will play below the fs and also box frequency by around 6 to 8 hz. You need to be able to tune by ear. No vehicle and system are the same so I can't just say yeah set it to a certain frequency without hearing it. Start with the subsonic set to 30 hz, You'll need to turn up the volume where you think it's kind of loud but still sound clean. Turn the dial on the subsonic counter clockwise until you can hear that sweet spot. You'll end up with the subsonic set lower than your box tuning. Also Maybe this will help , the lpf (low pas filter) filters out the highs to the sub and the subsonic filter's out the lows.
@@filibertofonseca8083 then what does the high pass filter do? It's a 3.2 cu ft box with 1 dayton max x 12" 28.4hz resonance sub. It sounds good on lows like it is resonating cleanly and making the car shake but what sounds like higher bass tones make a slapping noise that sounds bad like a hammering??box is tuned to 32hz but it was for a sundown z and x not this sub. Thank you for the advice.
At about a half an octave below enclosure tuning, subwoofer output will begin to diminish. At just below tuning, the driver will begin to "unload", and excursion will increase. I personally recommend setting subsonic about one quarter of an octave to one half an octave below enclosure tuning. This will vary, depending on the slope of the subsonic filter being used. I am using a DSP which affords different slopes, or dB per octave. The steeper the slope, the lower you can set it without damaging your driver. Always remember that the lower in frequency you play, the driver will want to naturally move farther anyway. When making your adjustments, start out high, then work your way down, observing excursion and listening for mechanical distress. Cheers dude!
Exactly this. Thank you. So much bad information on here.
I hear too many people's systems that don't understand this concept. Yeah it might hit hard but this next hit right after that sounds like a fart. Without properly adjusting the subsonic the speaker cannot return to original position to throw again in time for the next hit. I also am like you in the respect that I would like to hear not just the base but the instruments and the vocals setting the subsonic helps tremendously. I also have tweeters and not the kind that comment on stuff LOL
Been in the game for over a decade. Currently on my 4th system. How did I not know this? Lol Thanks! You da man
Welcome and thanks for subscribing!
@@JacobViral2 But of course. You're good at making vids and sharing info. Accidentally unplugged my stereo fuse. Gotta re-tune from scratch w/ no O scope or anything so this helps bigtime!
I feel you on that I'm about to be 37 tomorrow and I've had at least 30 different setups over the years
Thanks for the video. Love how you are using the sound deadening for your vehicle. Better carpet is also a way to get sound deadening in your car from the cheap OEM stuff in most cars. You can also add padding under the carpet, just make sure to get the stuff that is "fireproof"! Though it can be a bit pricey works great.
Most subsonic filters are just a high pass filter and on many amps there's no mention of the slope. If they had a super steep slope they'd be great for precision limiting, but I prefer leaving them off and controlling low frequency extension at the deck. If your setup is loudest at 45-50hz for spl purposes, a Subsonic filter is the quick way to chop out the frequencies you don't want sucking your power away. For SQ, leaving Subsonic filters off is best IMO.
Why not set the subsonic filter CORRECTLY instead of just guessing on the analog knob? Many amps are not accurate on their markings and "eyeballing" it is totally wrong. First set your gain correctly, then set your low pass filter. To properly set yoir subsonic filter, do the following:
1. Turn subsonic filter OFF by setting it all the way to the left at the lowest setting.
2. Play sine wave of desired subsonic setting, for example 25hz.
3. Using a multimeter take note of your voltage you have from your test tone.
4. Multiply your voltage by .707. So if I saw 40 volts I would multiply it by. 707 giving me 28.28 volts.
5. Turn up subsonic filter until you reach this voltage, subsonic is set.
Dennis Randolph or I just pull out my SMD CC1. 😃
@@angelvip2474 That is another option yes, but my point being was that there are very easy methods to correctly set the subsonic filter without any expensive tools. Not everyone owns a DD1, and they are quite expensive especially if someone will rarely use it. A multimeter can be purchased for 5 bucks at harbor freight and does the job fine as well.
Dennis Randolph I absolutely agree with you bro. It is also good to know the procedures ,the how and why it works not just winging it. You did a great job explaining the procedures. I was just being a lil smart ass😂👍👍
Why 28.28?
@@brian3364 28.28 just happened to be what the voltage would be in the example I gave. You pick a subsonic setting you are aiming for (25 hz is usually a safe bet if you want me to make it easy for you) and then find your baseline voltage reading you have with the subsonic filter turned all the way to the lowest setting. So I gave an example of 40 volts as a baseline reading, you'd play your 25hz test tone, or whatever frequency you are wanting your subsonic filter set to. With the subsonic filter set at the lowest setting (turned all the way to the left) you get your baseline reading. If for example you saw 40 volts then you would multiply that number by .707 giving you 28.28 volts in our example here. Turn the subsonic filter up until you reach that voltage and you are all set. It is quick and easy! Just make sure your subwoofer is disconnected while doing this! You don't want to potentially damage it blasting ultra low frequencies through it while you are setting the filter initially. Alot of people like to set their subsonic to 5hz below their box tuning, I personally have always just used 25hz and it works perfect. Your low pass filter can also be set using the same method of getting baseline voltage and multiplying by .707 as well, using an appropriate test tone. Only difference is the knob would be turned all the way to the right to start.
You can always leave it at half way and you wont have any issues at all.
Thanks man you always read my mind. Hope to meet you this year.i will give you a demo. I only have 2 15 bd4
"Only two 15's" yeah, no big deal. Lol
Jacob makes a solid point, and the demonstration of it is nice to see. I feel that the emphasis should be placed on what we did not get to see: he set the gain after the process we saw, I can't help but think that it would have been a stronger finish to test the final result in the same way for total emphasis besides the drop in decibels post procedure. Many simpletons will take away from the clip that you can use the subsonic to get a bit more db but just don't keep it there. I have been one of them in my checkered past🙃
Jacob turn it up so you can get people to see how much louder this method is. I like that you figured out how to stop that small subwoofer big motor sub from bottoming out can't wait to see it all the way up with your adjustments.
Dude thanks for making this video. I been trying to explain to sooooo many people how much this matters and they act like since they can’t hear it do anything that it doesn’t mean matter and since most music isn’t playing anything that low then the sub or amp won’t still try to play those hz
Dude your content is really good. Well spoken, good flow, informative. You should have more subscribers. That's not an indictment on you, rather us in the community. We need to share you more. You should be getting paid for this. I'll do my part 👍
Exactly.... I run 12s and subsonic takes a lot away from the good, rich deep, bass im pushing now and I have a small system but the sound quality is good and I didn't spend an arm & leg on equipment, plus I am only running 1200 Watts, so no need for an extra battery or upgraded aftermarket parts either, just make sure you run it correctly and you shouldn't have much of a problem with it.
Thanks for the video. A little side note, after every screenshot you don’t have to go into it and press save to photos it already saves for you if you just swipe it off the screen to the right
Your welcome and thank you nice suggestion
This great if you have a variable setting on your amp. Mine is 25hz or off! I have a sundown audio zv5-18 that plays down to 20 hz well.
I gotta find my vote meter so I can do my wattage calculations!!!!! Thanks buddy 🎉🎉🎉
I like how you built your truck around your stereo
Thanks! A lot more videos on the channel and more getting uploaded stay tuned.
Bro I feel you and appreciate your video and your intention. Totally respect it. Just keep in mind that you cant use a cell phone and accurately get a proper SPL reading. You have to use a legit SPL meter. Especially since your tests show +/- 1.5 db difference could be as simple as the the app SPL error range. But I agree with you as far as protecting the Sub you should definitely want to have your subsonic set accordingly to the subwoofer specs.
I was using an SPL Meter device on the windshield as I did this test. :) dB Meter xplicitaudio.com/product-category/installation/tools/?ref=3229
finally , i thank you for this video, South Africa approves
I always leave mine off, mainly bc I know the music I play but after watching this, I learned something. Time to fix that lol
I always put it 2-3hz below f3
I'm black and don't understand this shyt I listen to rap and opera where should I set it with hurting something...lol
@@duke1977 bro same im mexican and just wanna listen to rap😂😂
I’m blk here and I wanna hear Akon in 5g, but beating on the low end??? Help me out😂😂😂
Ok ok I turned down my sub sonic it sounds better and my bass boost was adjusted as well, thanks it helped
Anyone who is worried about an SPL score probably already knows what subsonic is and how to set it. People who just have an amp and sub in the trunk of their everyday ride will probably need to know what it is and whats the best way to set it for good sound quality. Just saying.
Sweet!! Because it’s on the Amp for a Reason.👊🏾💪🏾🔊
If that’s the case why is there bass boost if “it’s bad” lol
Subsonic is useful on ported boxes,sealed do not need a subsonic filter.
I have 8's box is tuned to 30hz my subsonic is all the way down. I think it sounds perfect to me. But not looking for high numbers anymore. Just nice clean sound
Very useful information,I need more learning on this but ,I do have a ear for my adjusting however to know the correct way is always the best way.✌🏾Thanks I will be watching this again when I retune my amps.
That's why I used old school amps cause they only have a gain knob and it's just much easier..i just want bass nothing else
exactly
Not all old school are like that... My crossfire 1k is about 15 years old
By using your instructions i just randomly guessed on each one and it exploded. Thanks
glad to help, thanks for watching my daily videos and subscribing!
I just learned something new today brub
This is a just a tool I use to adjust different things.. lol Plot twist: it’s reallly a bong scraper 😂 bruhh you the best I wasn’t sure if I was the only one who noticed!!
What’s the app called ?
That is a feeler Guage
There is pictures of it how I know is because I'm a mechanic and I use them
It's a gap checking tool. For checking valve gaps
Looks like a feeler guage to me. Ain't nothing wrong with smoking herb but you gotta have hobbies other than just smoking herb otherwise you just end up throwing away your brain...
I dont have variable subsonic so i keep it off 😅 ofc im going for the lows with my system✌🏻
Great video, you have video on tuning for Sound Quality instead of SPL
I have a jl 500/1 on 2 w3v3-8 & I have my bass section off but now will have to look into this
Those amps have the most damn settings lol I have no clue I had my old jl500 tuned by custom sounds
I just found your second channel 😂 time to watch all your videos, great info in them bro they help me out!
Welcome and glad to help Daniel 👍
Is the subsonic the same as a high pass filter? I'm asking because I want to use multiple full range monoblock amplifiers to power my door speakers 🔊
Some amps have it labeled like 10-90hz, etc which can be also act the same as subsonic correct, base it off the numbers
I always turn the subsonic all the way down unless my subs are bottoming out due to a oversized box or overpowering.
Socks and flip flops! A man that really loves his momma!
Tune it till it sounds the best. Test for clipping with an oscope
It really depends on what you are wanting. For me I like getting the biggest amplifier possible, use one sub per amplifier. I turn my gain and bass boost all the way down. I have powerful enough alt, bat, and caps to maintain 15v at max volume.
What brand and model of monoblock amps do you have if you don't mind me asking?
I mean most amps are unstable past 15.5v and shut off but thats cool its the internet and who cares if you lie right?
@@matthewmitchell7405Rockford amps can handle up to 16v.
@@randomtube8226 that is just so special. Maybe if you had named the amp brand beforehand. You didnt though..
It would be nice if instead of just giving you the highest and lowest setting numbers to have at least 3 points of the in between number like yours lowest is 10 highest is 50 there should be a 20-30-40. But eh I doubt they’ll listen. I just tune carefully and just rock 4inch coils. But I’m picking up my custom pair of Solo X 18 motors on 15 inch frames it’s a 3.5 coil but better then stock and my builder made them especially for what I play at 28-18 hz. Not a cheap pair of subs but worth it. Can’t wait till tomorrow afternoon!!! Update-subs still not ready a bolt snapped on one of them so it delayed the build on of of them. EH... there worth the wait!
Subsonic should be set just below your port tune frequency. Any notes played on your subwoofer that are below port tune cause the box to unload and essentially your speaker will behave as if it is in free air. And that damages coils
I only just played music and adjust the gain level i want on the Amps and also adjust the Equaliser on my head unit thats it.. No more dramas 🤷♂️
Subsonic should be set to 1 octave below box tuning frequency
So if my box is tuned at 30 hz was gen I hat should I set my filter at
Manuel Barrientos generally take your enclosure tuning and multiply it by .75 and that’ll give you your subsonic. I would set your subsonic to around 22hz
@@mopar392ta3 if my box tune is 26, so i need to set my HPF filter to 19.5 ?
@@VidiSLTU roughly yes.
Bud nice video but wish you would of spoke in dummy language. If teaching people who don't understand ya sort of have to explain what's going on
context clues and google
So u gotta pretty much guess ur subsonic hertz? Like from the notch you just go to where you feel it’s supposed to be at and where it looks like it’s at?
Within afew herts to be close yes without devices like amzn.to/3DcK6tG
1:31 "ignore the dash" - Jacob Viral2 . Jk, sick vid.
Subsonic basically cuts off the frequency, I love low frequencies, it shakes almost everything including my windshield. So I set it to off cause I like to get only low bass, not high mid bass.
I know this video is old but most people are tuning their enclosures from 35 hertz to 29 hertz?My 99Dd 21 frequency is 26 hertz?And my enclosure is 32hertz?So my subsonic filter is set at 25 to no higher than 30 hertz no problems
How would I go about choosing a battery? I'm thinking of a amp that delivers 1500 rms (mono) and a 4 ch amp at 300 rms. I only want one battery that can also power two fans. Would I need to change the alternator and my electrical?
Big 3(4) to do of course and it would depend on if you want AGM or Lithium. If AGM I would go with a group 31 for 1,500 watt RMS System personally should do fine with what you're doing.
I’m using a PB4800 Energie batt as a secondary for my amp and it’s amazing. I’m running a VFL 2k rms amp with 2 Audiopipe bd2s and it works great also not super expensive
25Hz to Life I use a platinum series duralast agm for 2000.1 skar amp it’s been fine might add a cap just because I plan on adding light bars so for something like that you should be good without a cap but you could always add it for more stability
No worrys about the Dash got the same rug in my truck lol good vids keep it up👍
I look at my subs manufacturers and says between 25 to 30 for subsonic. I have skar evl 12s
I have a scar audio amp 1200 I use it on 2 12s how should I set my lpf ?
@David yes I did thank you I just need some new speakers ima check them out on crutchfield
I did not understand your calculation, half of half, 13 hertz is what you said, but you set it to 35 hertz? Please help
Only on a class d amplifier and if your ported box is tuned to 45 hertz if it is tuned low it doesn't matter and you don't use a subsonic filter on class ab amplifiers
so if tune to 30 my subsonic should be round 20-22hz ?
According to Jacob it would be 22.5. Multiply 30 x .25 and subtract the answer from 30.
What C Smith said is correct. Half an octave below tuning is a good guideance range to tune your subsonic to.
I set mine by getting a 25hz and turned the nob until I heard a difference. Is that any good?
can you do a video of you going through your whole tuning setting
I have on this playlist videos: th-cam.com/play/PLkYp1Fj-99b0pFNxaohIxCaer8VxQVZ2j.html
Thanks man best video on the subject of subsonic yet!!! Appreciate ya and i smashed the like button!!!
I was always told subsonic was for ported enclosures only. Do I tune this for my sealed box as well?
Refer to this for help. ddaudio.com/tech-talk-setting-sub-amp-crossovers/
You mentioned someone turned to 30hz would set it around 3 or 4 o'clock instead of 1 to 2 but the lower the tune, the lower the end result so wouldn't that me a 30 hz person would set it between say 11 and 12 oclock?
Was thinking the same.
Yes correct backwards thinking it seems
I have the Orion xtr2500.1dz amplifier and the subsonic filter is either 25hz or off... only thing I dislike about Orion amps
I have the same amp what effect did it seem to have and what style of music?
How do you know where to set it? Do you use a meter or some sort? DD1?
On a ported box you set it near port tuning. Keeps the cone under control as the box will not below port tuning(unloadeding/free air). this can be found by doing a frequency sweep and seeing where the cone movement is the least that’s right around tuning that’s right around where you want your Hipas set. If you are not using enough power to exceed the drivers x max its not necessary but still recommend as more power will be utilized in the drivers usable range.
On sealed enclosures, In vehicles with a high transfer function u can actually have too much low hz content and can use this to eq it out. I do this in my daily, sounds way better and gets louder cleaner.
How to set the tune if i like the bass can crawling the ground? Specilly the tuning box? Is it 35hz? Or 40hz?
Great info Jacob!!👍
Thanks don
So because you use the subsonic in the correct range based off of your application, are you suggesting that you could slightly turn the gain up more (safely to squeeze more out of the sub) versus tuning somewhat conservative because the subsonic filter is off/lower than what the sub "should" play?
Correct basically yea but also for safety
I have an Alpine PDX 1000 watt mono amp with a subsonic switch. Off, 15hz, 30 hz. What should I do? I had it set to off forever lol
Depends on the box tuning, probably 15hz to be safe
the way my system is having subsonic turned off sounds so much louder on my sub tuned @ 32hz and i play them low lows on my 12
Aaron bilger what do you play to
I have a sealed box my amp don't have adjustment t1500 fosgate should I turn it on or off ??? thanks 👍
I tried using my subsonic filter my bass had gotten better
what is the name of the app you are using to tune the amp for subwoofer? thanks!
SSA Studio app but requires device
Noticed you dropped .2 volts between the tests could that have played a roll in your lower db numbers more so than the subsonic filter
Good point may be slightly deviated but minimal
I need help, I got a phoenix gold rx 2 500 amp with power bass 12”subs, first time getting a sub and amp, and I want my bass to actually hit. I keep seeing videos, yeah they explain the frequencies, gain, sound, etc. but what I’m looking for when tuning is what do I need to turn and adjust for more BASS, idc about the sound, distortion, loudness, etc, my main goal is BASS. Do I need to upgrade my amp to get more bass? Play with the knobs? Or should I get new subs and amp??
lots of variables from your box, port tuning, music played, electrical battery/alt power supplied, amp rms rating, subs etc. I would say you need to consider all these and go from there. Feel free to message me on instagram/facebook jacob viral and I could give you guideance
So which is the best set-up? 2 1ohm subs vs 2 dual4’s wired to 1ohm?
Nothing, both the same BUT 2 dual 1 ohm could potentially be upgraded amps with 2 half ohm layer where as two amps at 2 ohm for d4
Very good information videos of SPL and adjustment
I have a amp that I need help tuning right. I have a power acoustic amp rcr1-2500d with a etype 12" alpine sub.
I need help tuning mine too
Jacob, you're very helpful!
Glad to help
You rrrrrrrrr the man, the pirate said....
Always set my SubSonic to 25hz on every amp I use.
Out of 10hz to 50hz on the subsonic dial, 25hz should be a little passed a quarter right
I just eyeball it I go to the lowest I could play then turn up the subsonic till I get it were I want it
kratom kiing more like a littles then halfway. Halfway typically is 30 hz. Therefore move it back to the left
Me too between 25 and 30
Hey man I got my box tuned low to 28hz what you thinking on setting subsonic running a ctsounds ATv2 3000.1
Around 20hz
@@JacobViral2 Okok thanks homie
How can I find out which subsonic level is right. I got a box from a friend is there a way to find out like visually or through a tone test
I made a video on this the day after this one you should checkout ;)
@@JacobViral2 will do
sweet my solo 12 loves 1000 watts with subsonic off.
hi i need help my amp says LOW PASS FILTER 50-250 is this a good or bad amp? and can it hit below 50hz? this is a 4000 watt planet audio? some amps says 20hz or 30hz LPF ... please explain detailed, i guess what im really asking is can this amp hit 30hz or 35hz ?
That’s for subwoofer high freq cutoff rollover, set around 80-100hz. Should have a subsonic setting also or similar.
Hey quick question I’m trying to set my amplifier On a Rockville 2000 W amp what would I set my stuff on thanks
My videos should answer that. Have one for each area.
Do I need to use the subsonic filter if I'm using a dsp to set the hpf? My subwoofer specs are 25-250hz, so I set the hpf at 25hz and no slope in the dsp. Also, what is the best way to set gain and lpf for a subwoofer?
Yes and this video helps for lpf th-cam.com/video/vLlRjGckgHg/w-d-xo.html ; thanks for watching and subscribing
Well if your tuning your sub aren't you using the subsonic to tune? Or is the tuning of the woofer just an imaginary number you want to be at?
Depends on the enclosure usually
I have a question so as u where saying u wanted to have the subsonic half of what the tuning should be so if my box is tuned at 32 hertz would I want the subsonic at 16 hz ?
Quarter octave, so 1/4 drop from tuning
So i have this same amp on two trinity 10s in a series tuned 6th order. Im trying to get this amo tuned so bad before i mess something up. Any help is much appreciated!!
Amp Tuning help videos: th-cam.com/play/PLkYp1Fj-99b0pFNxaohIxCaer8VxQVZ2j.html&si=pJt7MYZZ_SGxSus2
Is the spl meter a downloaded app on your phone? Is it accurate?
Requires a db device meter. Ssa studio app but only works with meter
Thank you!
Glad it helped 🔊👍
I have a ported box tuned to 32hz if I done the math right I would set mine to 32hz right
32÷.25=128 128×.25=32
@@chrispuckett1347 should be around 20hz I belive.
@@alanray7177 it should be 24
32 x .25=8
Then 32-8=24
Half octave is 45*(√0.5)