Home Theater | Monoprice Monolith M-215 Sealed vs Ported
ฝัง
- เผยแพร่เมื่อ 13 ต.ค. 2024
- Today we measure the Home Theater subwoofer, the Monolith M-215 in various Sealed and Ported configurations to see how each performs using Room EQ Wizard.
Monolith Unboxing and Overview Video - • Monoprice Monolith M-2...
I'm Mad at Monoprice Video - • Monoprice Monolith M-2...
Monolith M-215 - www.tkqlhce.com...
If you find value in the content I create, consider supporting me through Patreon: / youthman
Music by Epidemic Sound - bit.ly/2McEupP
Monolith Products:
Monolith 11ch amplifier (200x3 + 100x8)- amzn.to/2JYVvTd
Monolith 7ch amplifier (200x7)- amzn.to/2JUjLWR
Monolith 5ch amplifier (200x5) - amzn.to/2JTAAkA
Monolith 3ch amplifier (200x3) - amzn.to/2Yc3qpF
Monolith 2ch amplifier (200x2) - amzn.to/2Y6ewIL
Monolith 12" sealed subwoofer - amzn.to/2SsX0Nz
Monolith 12" Ported subwoofer - amzn.to/2Y8Q6OC
Monolith M10-S 10" sealed subwoofer - amzn.to/2JVVnUD
Monolith 10" ported subwoofer - amzn.to/2Y2foOs
Monolith M15-S 15" sealed subwoofer - amzn.to/32EiUC6
Monolith 15" ported subwoofer - amzn.to/32ILYby
Join the Youthman Crew on Patreon: https:patreon.com/youthman
Music by Epidemic Sound - bit.ly/2McEupP
Subscribe to this Channel: goo.gl/YEJ23p
My Recommended Products - kit.com/Youthman/
Youthman Merch - teespring.com/...
Follow Us:
Facebook: / youthmanreviews
Instagram: / youthmanreviews
Twitter: / youthmanreviews
Visit the Website: youthmanreviews...
Room Calibration:
MiniDSP UMIK-1 Mic - amzn.to/2KI8YAN
Dayton Audio EMM6 Mic - amzn.to/2KOjeWO
Dayton Audio UMM6 Mic - amzn.to/2Hqj9YH
Behringer ECM8000 Mic - amzn.to/2KGE6k4
DBX PA Mic - amzn.to/2H9fiPd
Amazon Basic Tripod Boom - amzn.to/31MTRvn
Room EQ Wizard Software (FREE) - www.roomeqwizar...
Dolby Atmos Receivers and Pre-amps:
Marantz SR5012 7.2 4K Receiver - amzn.to/2KzwrBQ
Marantz SR6012 9.2 4K Receiver - amzn.to/2rmyY9B
Marantz SR6014 9.2 4K Receiver - amzn.to/2NHvj3b
Marantz SR7013 9.2 4K Receiver - amzn.to/2PA6Ijc
Marantz SR8012 11.2 4K Receiver - amzn.to/2jvNV61
Denon AVRX1600H 7.2 4K Receiver - amzn.to/2ZDuGKk
Denon AVRX2600H 7.2 4K Receiver - amzn.to/2NK1Cyp
Denon AVRX3500H 7.2 4K Receiver - amzn.to/2Rh6n4w
Denon AVRX3600H 9.2 4K Receiver - amzn.to/2ZF0gat
Denon AVRX4500H 9.2 4K Receiver - amzn.to/2SiCrlR
Denon AVRX6500H 11.2 4K Receiver - amzn.to/2SchUQ1
Denon AVRX8500H 13.2 4K Receiver - amzn.to/2KsfrgL
Denon AV8805 13.2 Preamp - amzn.to/2rPa3fE
Denon AV7705 11.2 Preamp - amzn.to/2NLQG3s
Klipsch Reference Speaker System:
Klipsch RF-7 III Floorstanding - amzn.to/2Hj9zpd
Klipsch RC-64 III Center - amzn.to/2JuQroH
Klipsch RS-62 II Surround - amzn.to/2JuAcrA
Klipsch RP-140SA Atmos - amzn.to/2HgiaJ6
Klipsch CDT-5650-C II In-Ceiling 6.5" - amzn.to/2Jpz08W
Klipsch CDT-5800-C II In-Ceiling 8" - amzn.to/2H3P7Lk
Klipsch R-115SW 15" Subwoofer - amzn.to/2Jr8yfm
Klipsch Reference Premiere System:
Klipsch RP-8060FA Floorstanding - amzn.to/2CtOV4G
Klipsch RP-440C Center - amzn.to/2uWIJ3y
Klipsch RP-250S Surrounds - amzn.to/2uSvnp5
Klipsch RP-140SA Atmos Module - amzn.to/2qcxqyo
Klipsch R-112SW 12" Subwoofer - amzn.to/2uSXT9X
_
My Home Theater Photos & Videos:
Theater Room Video Tour- • Home Theater Tour with...
Custom Cabinet Build Thread - imgur.com/gall...
7.2.4 Dolby Atmos Build Thread - goo.gl/YShhGf
High Res Photos - imgur.com/gall...
My 7.2.4 Dedicated Home Theater System:
Speakers:
(3) Klipsch LaScalas - amzn.to/2LhHLH0
(4) Klipsch RS-62ii - amzn.to/2ET4R2w
(4) Klipsch CDT-5800-C II Atmos Speakers - amzn.to/2NzK9oU
(2) SVS PB16 Ultra Subwoofers - www.kqzyfj.com/...
Video:
Epson 5040UB Projector - amzn.to/2Ace6ak
150" Seymour Center Stage XD Cinescope (2.35:1) Acoustic Transparent Screen
Pioneer UDP-LX500 - amzn.to/2SiLqHc
PS4 - amzn.to/2C74L6B
AppleTV
Audio:
Marantz SR8012 11.2 Dolby Atmos 4K Receiver - amzn.to/2A4WEXX
Lighting:
Lutron Caseta with Hub - amzn.to/2Wm22Nl
CB Concept SMD5050 LED Lighting - amzn.to/2DKws2S
Misc:
Harmony Elite - amzn.to/2CvHM3Z
Orbi Wifi Router - amzn.to/2WogtjR
___
Disclaimer: Affiliate Links are used in the description of this video. As an Amazon Associate I earn from qualifying purchases.
after watching your monolith vs svs sub comparison video I can see now that the monolith does provide subsonic protection in its THX setting. the big difference is that svs looks to be using a simple second order high pass filter centered at about 18 Hz (about 6 dB per octave reduction) and monolith provides a more complex ledge and smoothing centered at about 25 Hz. i prefer the roll off point and method of the svs, but kudos to monolith for keeping response flat after approaching its excursion limits. this is one benefit of a true sealed sub in that by selection and careful signal processing you can throw gobs of power at them and hit those ultra low frequencies but keep the excursion in check, whereas a ported sub can get itself into all kinds of problems at the ultra low frequencies (especially DIY) if the designer hasn't paid attention to its cone excursion, impedance, and port air velocity.
Great vid !! What people seem to be unaware of tho is the "in MY room" part ....what the sub 'puts out' is all dependent on room size and, not in this case, amp POWAH ....
I always share “in my room” and try and emphasize that different rooms will yield different resaults
Awesome video youthman. I love REW also. Can you add in your video though if you took the measurements at reference level? Or volume so forth? You may have said what volume but i may have missed it. Did you calibrate as well to 75db? Thanks man for all these videoos. You and audioholics are awesome!
Great Vid! - Thanks!
Monoprice is becoming a major player in the HT market.
Thank you and I COMPLETELY agree.
It's impressive how little of a dip there is in that 45Hz area that usually causes you so many problems. Also looking at the graphs between this and the dual PB16s there's a SUBSTANTIAL increase above 40Hz as well, making for a remarkably flat room response by comparison. You may sacrifice 4-5db below 30Hz, but gaining 10-15db above 40Hz is a pretty compelling argument, especially when you consider this is a single cabinet!
Lately, I have been measuring subs on my riser just to the left of my front row seat as that is the best response in my room on the floor.
I intend on bringing one of the PB16 down from behind my screen and taking measurements on the same day, from the same location, at same volume between both the Monolith M-215 and SVS PB16. That’s the only way to compare two subs as measurements from previous videos could be from a different location and certainly different volumes.
@@Youthman Good to know. If I lived closer I'd happily donate my back to help you schlep these things around to give you more of an apples to apples comparison!
@@Youthman Have you tried keeping your subs at fixed locations but turning them to different angles and measure the frequency response? I tried this and got varying results.
I have been checking every day for your review on this sub lol
Will be a few weeks before a final review
Yeah, me too!
Same here.
Hey Youthman, thanks for another awesome video. I always love it when you bring the graphs out. I think they help me get even more out of your videos.
Thank you.
Can you review/test REL subs. Really be nice to see how they stack up. JL would be nice too.
I like the orange line. The sealed extended mode is more balanced in it's output till 100 hz than the rest 3. Prolly is the better one? Awesome video for the sub and this rew program. An eye opener!
Best option is to try each mode to see what sounds best in your room as every room will measure differently.
I'd love to see the extension below 10 Hz. As I understand it, these super-big 18" subs should be active down below 7 Hz. Granted, you can't really hear it, but you sure should be able to feel it. Great video, though. I'm new to your channel, and your info is helping me a great deal.
They are 15" woofers.
@@deathb4dishonor755 you're right. I was thinking of the PSA 3611 with dual 18's. My point remains, though.
Same, would like to know as well. I don’t think it would take much to show us the graph starting at 5hz instead of 10. Or even lower.
The UMIK-1 microphone can measure frequency response down to 8 Hz, anything lower will most likely be inaccurate.
@@jninh80 Ah! I didn't know that. That makes more sense. Thanks for the info
Very nice! On my single mono15 I run extended now, did you ever test the mono15 the same way with all modes and port vs sealed? Curious if same behavior as here
I run my single monoprice 15 in extended also. From the results of this video, we're doing it correctly.
Thanks Youthman! I've been waiting for these bread crumbs!!!!
Do you feel more chest slam in the Thx mode?
According to a lot of people, having high spl in the ULF cover the chest slam effect.
Do you think this monolith can go up against a svs pb-16 ultra?
Peter Otremba from what it seems, there would be pros and cons to both.
Svs has a great app to help smooth out frequencies and just do adjustments in general, great support/ their Bill of Rights, and aesthetics/ size which is nuts to say considering its massive, though both take up about the same floor space.
Monolith though has that sheer deep bass where SVS starts rolling off quick (but still it gets deep regardless)
Both same price, though if bought as a pair you can save $200 through svs..
Hmm idk which sounds cleaner/ produces less distortion, that’d be interesting to know 🤔
I will be putting them head to head to see. The Monolith should have more output. It hits hard and digs deep.
What’s better the dual psa 18s or the monolith 15s?😎
I do not have the PSA S3611 but mere physics would suggest the S3611 coming out on top. It’s pretty ridiculous
Any plans to compare the dual Monolith to the SVS PB-16 ultra, as they are in the same price range?
Absolutely. Just need to invite a friend over to help me move it from behind my screen.
I’ll try to patiently wait for that one.😂
Now we want max spl and response at listening positions!! Thanks for the terrific vids and info, very interesting
The video is already made, just need to edit it.
so, the db varied surprisingly little. did you detect any listening preferences?
there are those who say they can hear 'chuffing' with ports and feel sealed is 'tighter'.
tho admittedly, tighter likely presents more with music than with movies.
Very informative video. So what are your thoughts in general in terms of sealed vs ported?
I am 90% movies and 10% music so ported are my preference. Some that listen to more 2ch prefer sealed.
@@Youthman It's interesting. Subs like those from Ascend Acoustics have a switch for music or movies and it's on both their ported and sealed subs. It's crazy for the avg. Joe to figure it all out.
Mike Dinno that switch likely adds an EQ to adjust for different setting.
Could you tell me how you had the m215s wired to the sub and receiver and your pre out voltage? I recent bought 2 and cant get them to boom. Ive done troubleshooting with monoprice and the subs are fine. My reciever is onkyo rz3100 hooked up lfe/ unbalanced. I have y splitters and balanced cables. Any tips would help. Subs are plugged into the wall and work the same if plugged into my surge protector.
Did you ever get this resolved?
@@woohunter1 no
@@MrHumes-nv1zr silly question, the drivers wouldn’t happen to be wired out of phase from the factory? Just a thought.
@woohunter1 no clue. Im not smart enough to know these things. I thinks its a power issue.
Awesome! One of the videos I was patiently waiting for.
Thank you for your excellent work, but the real question is does the sub sound better with music in sealed mode?
We will get there. 😀 I have been out of town and haven’t spent much time listening to it yet. Just wanted to get some measurements out there.
Do you think this sub is better than the pb-16ultras ??
M-215: increases in SPL after 20hz in ported mode
Me: wait that's illegal
LOL
Hi Youthman,
Im a new subscriber. Love your channel. Very informative. Keep up the great work!! 👍👍
Thank you Tony! Lots of content for you to enjoy.
Definitely need to play with REW more, this way you can show what the advantages and disadvantages of running this sub (or any sub) in each of it's configurations. Then you can show waterfalls, distortion and decay (yes though the room matters). Otherwise people will watch and think...Ok so just run it extended ported...
There is a LOT I don’t know in REW. Still have a ton to learn. Super basic with it right now.
I doubt it can out run the PB16 ultra. Can’t wait for a comparison
We shall see
Marc Gallant we’ll see about that. SVS has a unique technology in their subs
Marc Gallant I’ve done my research. You just wait for the review and we can see who is right and who is wrong
Heading out of town for a few days for work. Once I get back, I will be finalizing the KLH review, then I can put the M-215 vs PB16 head to head.
@@shanalpompeus740 the svs loses
The measures was at limit of subwoofer ( in start of compression ) ?
I would always include the "close miking" graph for the kinda "reference" because you might forget to tell always that it's the performance in your room in a specific location ;) Thanks!
Thanks. I’m pretty consistent with stating “in my room”. The best solution is ground plane measurements but that isn’t practical when I’m reviewing 215lb subwoofers. My videos have always been from a consumer’s perspective.
In your videos, you say two or more subs is best for the theater room. So what I’m trying to ask is. Is two 15’s in one box considered one sub or two subs. Is it better to have two 15’s in one box or two 15’s in two separate boxes?
Two in a single box is technically considered one subwoofer. The main reason of having multiple subwoofers around your room is they can be used to smooth out the bass response throughout your room
Having to 15' in the same box and Doble power amp, it's a question of having more Spl.
It's better to have two singles 15' than one doble 15'.
Best option two have two double 15's.😅
The video was very informative! That program is what's up! I'd love to have 2 of those subs! Bass-o-Rama!!!
Great video as always. You are right to focus on the most important area, probably best for the video. However, LFE goes to 120, crossovers are not a hard line and many satellite speakers are crossed at 120ish. Subs will have significant output over 80hrz
You are correct. I have my LFE set to 120Hz. I didn’t think about that when I made the statement that I wasn’t as concerned with above 80Hz. Guess I should be 😂
@@Youthman my understanding is that LFE channel mix includes frequency up to 120, aside from your speaker crossovers. At ref level you technically could have 103 db sub output even at 240 hrz (assuming 12db crossover slope) at least my understanding. Still i think it is right to focus graph on most important below 80
Can you tell me what you think about the Crown XLS2502 two channel power amplifier ?
Crown makes great amps. I have never used one for 2ch though
Hey @youthman. Tell us what you think about Monolith 215. Also, if THX output lower decibels, then can you tell me what is the use of THX. Obviously, if you buy a speaker has 2 15s you want deep bass at loud volume. So my thoughts it is a certain sound quality they are looking for. So if you could let us know what is the real benefit of THX. thanks.
It has to do with the THX certification. There's a specific type of response that THX looks for when evaluating equipment, so unless it meets that, they don't get the stamp of approval. So just because it gets louder at lower frequencies, doesn't mean it still meets THX's standards at those volumes. This is Monoprice's way of still playing within the rules to get the shiny badge, but also letting the end-user decide whether they want to abide by THX's standards, or use their own ears. Best of both worlds, really.
its so its can play louder, extended mode make the subwoofer hit its excursion limit earlier. thx is about loudness and dual 15 cant keep up to the standard.
In extended there is more distortion so it couldn't meet thx standards.
If my subs don’t hit 200db at 20hz, I don’t want them.
Haha
Suomiarmeija, ei sit muuta ku nuppia kaakkoon vaan, kyllä se 200db sieltä pikkuhiljaa löytyy ku tarpeeks väännät 😆
I like the way this guy thinks...
Oh yeah! So excited to watch this!
Does this mean that ported (no foam) and extended mode is the best way to use this subwoofer since it will output a higher level of sound? Or why would someone want to use THX with or without the foam insert if they are not getting as loud of a level from the sub below 30Hz.
I haven’t tested each with music or movies to see if I can determine any sonic differences but I’m assuming there would be.
Youthman sealed should be tighter/quicker bass as the driver now uses the air as a compression spring, down side is you lose SPL, but if you have so much SPL who cares. THX mode to roll off at 30hz is a commercial theatres spec where they are going for tight slam instead of depth
So the best mode would be sealed extended and just up the gain so it matches the ported extended?
I prefer ported myself
@@Youthman but they did not have as flat response as the ported right?
That THX mode is weird. I bet they tone it down for a technical reason. Perhaps, THX requires a certain level of linearity in performance, so if a speaker exceeds spec, then it has to be EQ'd down. 105 DB at 15 hz. Lol! Thump!
Another awesome videos..I wish monoprice will produce 12 inch version of this
Not sure what their plans are
I’m in desperate need of help with audio on my setup there’s to much treble in my system and was wondering if there was a way to fix or any ideas to help me out
Manually Adjust your EQ, don’t aim your tweeters directly at your listening position to name a few
Youthman
So would you recommend me turning off multixt32 and use graphic equalizer to manually adjust things
Youthman
So basically having the speakers fire directly into the room as opposed to firing at the main listening position
What's the benefit of THX mode or using a ported sub in a sealed mode?
I have never understood the desire to seal a ported sub but that’s just me.
THX mode might offer lower distortion. I’m not sure.
Hey Yootman, do you ever use any dubstep for testing subs ?? Skrillex, Excision etc..??
My son used to be big into Dubstep. I enjoyed it but haven’t listened to it in a few years.
@@Youthman it's a real clean pure digital mix that gets real low.... Even if you don't like the music it's great for testing 🙉
But how does it sound? Does it tighten up when you seal up the port? I mean, spl is important and all, sound quality should be paramount. You missed the most important part of the comparison the part you put in a SACD or your favorite record and comment on the actual sound coming out of it. Most people that can afford one of these, can also afford two. Spl is, or at least should be, secondary.
(the word 'comparison' here was edited from the word review because someone didn't get the gist of this post and needed it explained to them)
What review? This wasn't a video to do a review of the subwoofer. It was strictly to show how the different modes perform. He has said he needs more time with it to post a thorough review.
A few thoughts. 1) This wasn’t a review, 2) I haven’t done much listening to content since I was in LA, 3) There will be other videos to come 😀
Patience my friend, patience
@@dextermorgan1 Ok, since we are being pedantic, I will go and edit my post. I will change _review_ to _comparison_ just to make you happy. The title of the video is _" Monoprice Monolith M-215 Sealed vs Ported"_ so it is, in fact, a comparison.
When I see xxxx vs yyyyy, it is usually safe to assume it is a holistic view and no just one single (not very useful) measurement (unless you are the type to compare sizes in the locker room...). If you saw a video called "Lamborghini Aventador vs Ferrari 812 Superfast, and then it was about tire size and nothing else, you might leave wanting.
@@Youthman I can have that... haha.
You should try the pod race scene from phantom menace I bet those engines sound great with this sub!
Would you try Life of bliss's HS-24?
Yes if it was already built. I’m not skilled in the DIY area.
link working for 215? doesn't seem to be.
Man I wonder how dual m215s vs psa tv3612s would sound
thanks good job 👏🏻
😱☝️🔈🔉🔊 MINI YOUTHIE! LOL
If I was able to spend 2000 on a sub, I feel like this would be the one. For some reason, I just really like the look of this, over the jtr and the pb16. Not sure why.
It’s a great value for sure. Neither it or the PB16 are of the caliber of the JTR subs. My JTR Captivator RS2’s are flat down to 8Hz.
Performance aside, for some reason I just like the look of this one. I know the JTR subs are on another level, but the output that this sub has is pretty special too.
Output on the Monolith is fantastic.
Make vid of svs ultra pb 16 vs the monolith 2 15s :)
That is part of the plan
Perfect :) a demo video with both the svs & the monolith beside each other going note for note would be the cherry on top.
This video compares them both note by note - th-cam.com/video/JX-r6ZNhTIs/w-d-xo.html
Ok cool am gonna check it.....
@0:36 I looked up, I looked down. I saw no link.
I just looked and the cards were showing above but I just added them in the description as well.
@@Youthman Cool. Thanks. And to be fair, I never see these 'cards' that people speak of in videos and point up at. I'm watching TH-cam in the Chrome web browser on a PC running Windows 10. Maybe there is some setting I have set incorrectly? I don't know.
I’m not sure. It’s just a white banner of text that appears for a few seconds that you can click on to take you to another video.
@@Youthman Oh, okay. I think I've seen what you're talking about in the past, but not for quite some time! Weird. Anyway, I'm going to go binge watch ALL of your videos now. Oh, and I subscribed! ^_^
youthman you think 3 decibels isn't very much difference but that is not correct 3 decibels is a large difference and 4 decibels has 37 percent loudness difference so 37 percent is a very large loudness difference
If I had a dollar for every time I ran REW, I’d be able to pay cash for 2 of these!!! Lol
This is all waay to technical for me .
I’m a How does it make me feel subjectively kind of guy and was hoping for a preview of how the speaker/s
sound.
But then i realized that’s a ridiculous request because i’m viewing this video on an ipad with speakers the size of a pepper corn. 😳
Can somebody tell my, if there are frequencies below 20 Hz in current recordings at all? I am curious, if they are using high-pass filters at 20 Hz in mixing?
@Regular Guy Audio 👍
And yet most will automatically chose the THX mode and in this case (and others) it performs worse. Monolith should have save the money, not paid for THC certification and knocked $100 off the price
A mean looking sub
Massive
Between monolith and svs pb 4000 witch 1 would u say hitts the hardest
Simontshukudu Tshukudu I have not heard the PB4000 but physics would say the Monolith
THX with a little bit of EQ seems to be optimal!
Well, except these measurements are for a single location of one given room, and therefore meaningless. Well, meaningless other than for the one thing that the Youthman was trying to show us, and that was simply the different frequency responses one will get by way of those two variables (Ported/Seal & Extended/THX). The results look very predictive, and so hats off to Monoprice for their implementation of these two variables / four tuning options. ...and of course a BIG Thank you to the Youthman!!!
I want to see this against a 16 Ultra
You will.
Shame monoprice doesn’t sell in europe
Maybe one day they will
Hot dog! Ill take 2!
Not to rain on anyone's parade, but big deal you illustrated 4 graphs of frequency. what you should be telling us is whats the difference between Extended vs THX, and what technology is behind EXTENDED mode.
Care to enlighten us? I’m always willing to learn.
@@Youthman "Setting the EQ switch to the THX positionto have the subwoofer perform within the THX certified parameters.
When set to the EXTENDED position, the subwoofer will use your amplifier's equalizer,with the result that the output level will be slightly louder, but with more distortion. " So my question & statement would be along the line of, being that EXTENDED MODE played louder than THX in your graphs, it would be great to run live audio tests with movie clips and see which sounded more dynamic and does the DISTORTION become audible to annoy the listener. And if EXTENDED MODE comes out on top, while pay for THX certification. I know your channel can get to the bottom of this.
Looks like Chinese math to me🤦🏽♂️👊🏽
Could be
Monsterlith
LOL
Svs 😷💩🤮👎👎👎not THX certified....monolith 🙏👌
Oscar Bautista
Grow up you dumb moron!
Better than THX