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expired Posted by KillJoyEX • Jan 31, 2022
expired Posted by KillJoyEX • Jan 31, 2022

Monolith 15" THX Ultra Certified 1000-Watt Subwoofer Amplifier

+ SD Cashback + Free Shipping

$1,100

$1,500

26% off
Monoprice
99 Comments 23,136 Views
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Deal Details
Monoprice has Monolith by Monoprice 15" THX Ultra Certified 1000-Watt Subwoofer Amplifier on sale for $1099.99. Additionally, earn 2.5% in Slickdeals Cashback, before purchase when you follow the cashback instructions below (PC extension required, before checkout). Shipping is free.

Thanks community member KillJoyEX for sharing this deal

About this Product:
  • The Monolith THX certified subwoofer sets the standard for bass output, low distortion, and affordability. With chest thumping bass that plays down to well under 16Hz, the Monolith THX Ultra 15" Subwoofer unleashes cinema level volume, with the ability to convey and articulate the subtle nuances of music.

Editor's Notes

Written by johnny_miller | Staff
  • About this deal:
    • This price is $400 lower (27% savings) than the list price of $1499.99
    • Please read the Forum Thread for more deal discussion.
  • About this product:
    • Rating of 4.9 from over 80 Monoprice customer reviews.
  • About this store:
    • Details of Monoprice's return policy can be found here.

Original Post

Written by KillJoyEX
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Monoprice has Monolith by Monoprice 15" THX Ultra Certified 1000-Watt Subwoofer Amplifier on sale for $1099.99. Additionally, earn 2.5% in Slickdeals Cashback, before purchase when you follow the cashback instructions below (PC extension required, before checkout). Shipping is free.

Thanks community member KillJoyEX for sharing this deal

About this Product:
  • The Monolith THX certified subwoofer sets the standard for bass output, low distortion, and affordability. With chest thumping bass that plays down to well under 16Hz, the Monolith THX Ultra 15" Subwoofer unleashes cinema level volume, with the ability to convey and articulate the subtle nuances of music.

Editor's Notes

Written by johnny_miller | Staff
  • About this deal:
    • This price is $400 lower (27% savings) than the list price of $1499.99
    • Please read the Forum Thread for more deal discussion.
  • About this product:
    • Rating of 4.9 from over 80 Monoprice customer reviews.
  • About this store:
    • Details of Monoprice's return policy can be found here.

Original Post

Written by KillJoyEX

Community Voting

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Top Comments

You ever go below 20hz, bro?
Please enjoy your $300 Sony home theater in a box. I understand that $300 Sony sounds amazing, but try out a real home theater system some day.
I'm going to assume that if you already know what either of those two subs are, then you probably already know (or have read) how this sub compares to them. Maybe I'm wrong, but this seems like more of a flex than a legitimate question.

99 Comments

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Feb 1, 2022
7 Posts
Joined Aug 2008
Feb 1, 2022
Djibouti
Feb 1, 2022
7 Posts
This thread is a simpler example of the BOSS platform setup:
https://www.avsforum.com/threads/...s.3063116/

Hardest part these days is finding cheap plywood Frown
Feb 1, 2022
916 Posts
Joined Sep 2006
Feb 1, 2022
nonplus
Feb 1, 2022
916 Posts
Quote from toromac :
There is a reason tvs get larger every year
Huh. I bought a new 65" TV 3 years ago, and it's still the same size.
Feb 1, 2022
1,239 Posts
Joined Nov 2012
Feb 1, 2022
i_max2k2
Feb 1, 2022
1,239 Posts
I have 2x these for a ~1600 cubic feet space, these are some of the best priced subs.

The sub 20hz response is insane at their price. Once setup properly, if you're getting 2, recommend getting a minidsp and a mic to properly smoothing the frequency response. Nothing comes close to their price/performance and especially at these prices. I have decent tactile feedback for my space, and I use BassEQ to further enchance the experience. Eventually I'll be getting into more hardware for tactile feedback.

These are a huge and I'd recommend 2 people to do the initial setup and definitely get furniture sliders to make it easier for their back. I've fortunately a dedicated rectangular room for my HT and I still moved them around to all possible locations in every combination to find the best response, without furniture sliders I'd have broken my back. There is no way this performance can be had unless you have a enclosure of this size so that's a needed compromise.

Just an FYI I got mine sometime last year, the subs come into their own around the 3pm mark on the gain knob.
Feb 1, 2022
100 Posts
Joined Aug 2011
Feb 1, 2022
rockstars369
Feb 1, 2022
100 Posts
Oos, eta 3/3/2022.
Feb 1, 2022
137 Posts
Joined May 2011
Feb 1, 2022
smiles07
Feb 1, 2022
137 Posts
Now that it's out of stock, I guess it's not a bad thing that I get to save some money 😅
Feb 1, 2022
100 Posts
Joined Jan 2013
Feb 1, 2022
TwoToneBlue
Feb 1, 2022
100 Posts
I'm hoping the $999 REL predator deal comes back
1
Feb 1, 2022
1,165 Posts
Joined Jul 2009
Feb 1, 2022
ViciousXUSMC
Feb 1, 2022
1,165 Posts
Quote from smiles07 :
Now that it's out of stock, I guess it's not a bad thing that I get to save some money 😅
Same boat, have 3... would have to completely change the room to fit the 4th and absolutely not needed, but I am a sucker for a good deal, so it sold out just before I went to get it.

I'll take it as a sign... to wait until they are on sale again.

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Feb 1, 2022
10,521 Posts
Joined Dec 2007
Feb 1, 2022
boosterjm
Feb 1, 2022
10,521 Posts
Quote from DJPlayer :
I have a PB 2000 (not pro) and 2 15 Monoliths. When I tuned mine using MiniDSP and REW a single Monolith really outperformed the PB2000. The most noticeable portion was obviously that the Monolith hit much lower.. I seem to recall the PB2000 peaking up near the mid/high 20hz range.. The Monolith peaked a little under 20hz.

I do feel like the PB2000 does hit a little tighter though.. I was swapping my subs on and off yesterday comparing.

man I want another 15" Mono THX.. ugh..
Can you please throw some light on what is MiniDSP and REW and how do you tune with them? TIA
Feb 1, 2022
1,165 Posts
Joined Jul 2009
Feb 1, 2022
ViciousXUSMC
Feb 1, 2022
1,165 Posts
Quote from boosterjm :
Can you please throw some light on what is MiniDSP and REW and how do you tune with them? TIA
This is not to be rude, its a legitimate answer.
Google it Smilie

The process has some good tutorials on YouTube and some articles online that far exceed what we could quickly share here, and without knowing the big picture and seeing it in action, nothing would really make much sense just giving a brief how to.

It is actually pretty simple, but can be time consuming.

The results are well worth it.

I can tell you this MiniDSP is just the hardware device to run your DSP, there are other devices but this one is probably the most popular for its features and price.

REW is free software for measuring sound in your room and designing the EQ and Delay you need for your subs to work their best.
Feb 1, 2022
70 Posts
Joined Dec 2012
Feb 1, 2022
dabeastro
Feb 1, 2022
70 Posts
Quote from ViciousXUSMC :
I'll add my experience.
I went from a single BIC F12 Sub
Then Added 4x Aura to the sofa
Then Upgraded to 3x 15" Monoliths

For movies and LFE myself and my GF both agreed the most perceivable upgrade was adding the shakers even over the much more expensive sub upgrade.

Now the QUALITY of bass I have is much improved, and these subs can shake the house, but often its much preferred to have the subs not rattling everything and let the shakers do some of the work. During something like an earthquake seen, you feel like your actually in an earthquake...

Especially the ultra low stuff the shakers > subs where you feel it so much more, while the subs just make my house sing a jingle as I hear everything for the next 3 rooms rattling around.

Unfortunately I have a multi use room where the livingroom is my theater room, I dont have the luxury of having a dedicated HT room.

I am interested in the Crowson's now lol, but the Auras have not disappointing me, after building braces in my couch and directly mounting 4 of them, the vibration can be nearly violent.

Looks like the Crownsons are isolators and don't actually mount to the furniture? , not so great for my recliner couch that has like 8 or 10 contact points with the floor on a metal frame unless I can get those feet on somehow.

Guess I'll add them to my wish list, probably 4 of them in parallel to get a 4ohm load.
I really appreciate your post here. I am siting on a single F12 and I'm ready to do better. Will definitely consider the shakers. Can I ask how big/what configuration your room is? My room is pretty massive with a pitched vaulted ceiling and a stairway loft. Not sure if any amount of monoliths is going to be capable of producing the kind of thing most people are after.
Feb 1, 2022
11,572 Posts
Joined Dec 2007
Feb 1, 2022
DJPlayer
Feb 1, 2022
11,572 Posts
Quote from boosterjm :
Can you please throw some light on what is MiniDSP and REW and how do you tune with them? TIA
That's a huge conversation.. I would google one of guides to understand how it's actually done. Go to Youtube, some guy does a 4 of 5 part walk through on how to configure in it's entirety.

The MiniDSP is the device you NEED if you have multiple subs (has 2 inputs and 4 outputs). You can control the phase, gain and do fine tune configuration of gains at various frequences in the device. This is where REW comes in, which is free software. With REW and a microphone you can run sweeps and tune your subs to have an ideal room curve. REW ill do most of the work for and output a configuration you put into the MiniDSP. I attached my curve using 2 15" Mono's and 1 PB2000.

Overtime, I'll smooth it even more.. The difficulty is that different seat positions have different curves and then you have to start balancing the various curves. Also, since I'm adding my bass traps and acoustic panels now, I want to see if makes any changes. At some point you're just fighting over tiny bumps that can't even be realized.
Feb 1, 2022
11,572 Posts
Joined Dec 2007
Feb 1, 2022
DJPlayer
Feb 1, 2022
11,572 Posts
Quote from dabeastro :
I really appreciate your post here. I am siting on a single F12 and I'm ready to do better. Will definitely consider the shakers. Can I ask how big/what configuration your room is? My room is pretty massive with a pitched vaulted ceiling and a stairway loft. Not sure if any amount of monoliths is going to be capable of producing the kind of thing most people are after.
I have 2 BIC F12's and I unplugged those long ago.. I think someone sold them to me used for less than $100 for the pair. Shakers are something to usually accompany some serious subwoofers. It's not really a replacement.. it sort of accompanies. I have a dedicated theater room which is rather large.. but.. I have alot of control over the sound in there.. With vaulted ceilings and a loft.. ouch.. that's a tough one. Especially b/c you're probably gonna have echo and need to deal w/ controlling some sound waves.
Feb 1, 2022
1,329 Posts
Joined Oct 2020
Feb 1, 2022
CalmMitten9192
Feb 1, 2022
1,329 Posts
Seems OOS. Frown
Feb 1, 2022
720 Posts
Joined Nov 2007
Feb 1, 2022
Nikolai
Feb 1, 2022
720 Posts
Quote from Tooterfish :
Interesting. 25 years ago I got like a new 18" peavy bass amp for $420 that makes these look silly with how versatile it was for even records/home theater. But ok $1000 now I can still play music on it

Or an entire home theater system with plenty of bass was like $300 just a decade and a half ago. Shoot even a cheap sound bar is going to shake the walls so I don't see the utility here but ok

Only in the car audio world. Maybe. In the music world an amp is an amp and nobody questions if it makes loud sounds or not
Nah man those HTIB getups of yesteryear had nothing remotely close to this in terms of bass, especially at LFE frequencies below ~30-40Hz. Even decent dedicated 10-12" subs didn't compare, except for maybe old-school SVS designs.

Outlaw and Hsu changed the value market with their first editions of this sub. My Hsu VTF-15H was among them, and will still put nearly all cheaper subs to shame in terms of bass quality and extension. Newer ones like this have 2-3x wattage for 3-5B more output, and do even better down low, though.

The only better "value" these days is going with a DIY package, like a GSG Marty sub with 18" or even 21" driver... most of those kits come at a space penalty though. I'm personally doing two full 21" Marty's with Lavoce drivers, for a 12-17dB LFE improvement over my Hsu, and far better musical bass at higher frequencies. Should keep me happy another decade or so!!

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Feb 1, 2022
720 Posts
Joined Nov 2007
Feb 1, 2022
Nikolai
Feb 1, 2022
720 Posts
Quote from wildcowboy :
Neither - Get a serious sub that has FIDELITY for music as well for $879. The Hsu ULS-15MK2 http://www.hsuresearch.com/produc...15mk2.html
"Fidelity" you can allllmost hear! ...being 7-10dB down on the Monoprice sub at lower levels... above, it's nearly the same in terms of bass quality, as it's operating very far above the port's tuning range.

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