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vid1900 16.5K Views
Jul 3, 2026 2:03 AM

15" Monoprice SW-15 600W RMS (800W Peak) Powered Subwoofer

$250

$500

50% off
+ Free S&Hat Monoprice
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Deal Details
Monoprice has 15" Monoprice SW-15 600W RMS (800W Peak) Powered Subwoofer (41499) on sale for $499.99 - 50% with promo code SHOP50 in cart = $249.99. Shipping is free.

Thanks to Community Member vid1900 for sharing this deal.

Details:
  • 15" front-firing powered subwoofer
  • 600W RMS (800W peak) amplifier
  • Ported design with down-firing port
  • 30-150 Hz frequency response
  • Variable phase control
  • Variable low pass filter
  • Dimensions: 18.1" x 21.0" x 22.7" (460 x 533 x 577 mm)
  • Weight: 66.1 lbs. (30.0 kg)

Editor's Notes

Written by SaltyOne | Staff
  • Rated 4.6 out of 5 stars from customer reviews.
  • At the time of this posting, our research indicates that this is $150 lower than the next best comparable online prices starting from $399.99.

Original Post

Written by vid1900
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Monoprice has 15" Monoprice SW-15 600W RMS (800W Peak) Powered Subwoofer (41499) on sale for $499.99 - 50% with promo code SHOP50 in cart = $249.99. Shipping is free.

Thanks to Community Member vid1900 for sharing this deal.

Details:
  • 15" front-firing powered subwoofer
  • 600W RMS (800W peak) amplifier
  • Ported design with down-firing port
  • 30-150 Hz frequency response
  • Variable phase control
  • Variable low pass filter
  • Dimensions: 18.1" x 21.0" x 22.7" (460 x 533 x 577 mm)
  • Weight: 66.1 lbs. (30.0 kg)

Editor's Notes

Written by SaltyOne | Staff
  • Rated 4.6 out of 5 stars from customer reviews.
  • At the time of this posting, our research indicates that this is $150 lower than the next best comparable online prices starting from $399.99.

Original Post

Written by vid1900

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Community Reviews

The SW-15 is a big, budget home theater sub that is praised for strong output and surprisingly deep bass for the money. Audioholics measurements are cited as showing about 117.5 dB at 63 Hz, around 107 dB at 30 Hz, and roughly 98 dB at 20 Hz, with reports that it can pressurize a medium living room and work well for music and movies. The main cautions are reliability and support, with amp failures and dead units reported around the one to two year mark, and some pointing to better warranty or service from RSL and Dayton alternatives.

  • The subwoofer can reach very high output at 30 Hz and 20 Hz according to Audioholics CEA-2010 based calculations.

  • The deal can be cheaper with the SHOP50 coupon that applies to the 12-inch variant and many other Monoprice items.

  • The SW-15 can provide audible low-frequency information down to around 20 Hz across multiple music genres.

  • The SW-15 can work as a soundbar sub mod because it includes high-level inputs.

  • The plate amp can fail after about one year, and replacement may cost more than buying a new sub.

  • The listing specs may omit voice coil size and resonant frequency information, which makes system details harder to verify.

  • Amazon reviews are not encouraging for this product.

  • Monoprice after-sales support may require shipping back the entire Monolith sub for amp issues instead of sending a replacement amplifier.

Common Questions (5)

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72 Comments

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Jul 3, 2026 5:00 PM
23 Comments
Joined Dec 2008
techie1980Jul 3, 2026 5:00 PM
23 Comments
I had one of these for about two years before it gave up the ghost and gave the buzz of death. The plate amp died , and replacing it would have cost more than buying a whole new subwoofer. It was well outside of the standard one year warranty.

The sound quality was great for my medium sized living room. I ended up upgrading to an SVS PB1000 after that, but that's a totally different price range.
Jul 3, 2026 7:07 PM
255 Comments
Joined Apr 2015
dflockJul 3, 2026 7:07 PM
255 Comments

Our community has rated this post as helpful. If you agree, why not thank

Quote from AkujunkanX View quoted comment :
1) Meant for music. 2) Bro wants a sub for 250 bucks that beats out SVS in raw performance. Take your pick on which argument you sounds best
RSL Speedwoofer 10e
1
Jul 3, 2026 7:49 PM
9.8K Comments
Joined Aug 2013
xtpJul 3, 2026 7:49 PM
9.8K Comments
Quote from CleverCreature256 View quoted comment :
Also, what matters more when using DSP is its actual maximum undistorted SPL at each frequency. A "flat" sub which is less capable if its max at 20 Hz is 10dB lower than another "non-flat" sub.
You're not sensitive to distortion that low. It just rumbling.

The biggest problem is room mods.
1
Jul 3, 2026 7:53 PM
9.8K Comments
Joined Aug 2013
xtpJul 3, 2026 7:53 PM
9.8K Comments
Quote from supermanrob View quoted comment :
Well pretty much all AVRs offer room correction, you can even add it.

If your $1k sub sounds like trash, sorry but it's not the sub, that's likely user error.
There are very few boxes for good sub correction.

They usually use very basic parametric eqs, when in reality you need ALOT of processing horsepower to produce smooth behavior.

Most also don't do timing but this is less noticeable, more of a texture.
2
Jul 4, 2026 12:23 AM
3.5K Comments
Joined Jul 2017
fintlewoodlewixJul 4, 2026 12:23 AM
3.5K Comments
Quote from AkujunkanX View quoted comment :
1) Meant for music.
2) Bro wants a sub for 250 bucks that beats out SVS in raw performance.

Take your pick on which argument you sounds best
Music doesn't hit 30 hz? Fascinating. Tell me more.
3
Jul 4, 2026 12:40 AM
13.4K Comments
Joined Jul 2010
supermanrobJul 4, 2026 12:40 AM
13.4K Comments
Quote from xtp View quoted comment :
There are very few boxes for good sub correction.They usually use very basic parametric eqs, when in reality you need ALOT of processing horsepower to produce smooth behavior.Most also don't do timing but this is less noticeable, more of a texture.
You can always add a DSP to any box.

Not to mention, in reality everything can't be "smooth" out through eq regardless of horsepower.

I'm curious to know what sub and DSP you're using?
Especially if you think a $1k sub that peaks at "60-100hz" will sound like "trash"!
2
Jul 4, 2026 12:47 AM
348 Comments
Joined Jul 2018
ElatedMusic8761Jul 4, 2026 12:47 AM
348 Comments
Quote from fintlewoodlewix View quoted comment :
Music doesn't hit 30 hz? Fascinating. Tell me more.
Dude people b thinkin that fr
Last edited by ElatedMusic8761 July 3, 2026 at 05:53 PM.

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Jul 4, 2026 1:34 AM
3.5K Comments
Joined Jul 2017
fintlewoodlewixJul 4, 2026 1:34 AM
3.5K Comments
Quote from ElatedMusic8761 View quoted comment :
Dude people b thinkin that fr
Yeah, brah!
1
2
Jul 4, 2026 1:50 AM
59 Comments
Joined Nov 2011
kevin_1981Jul 4, 2026 1:50 AM
59 Comments
Had this for a year and barely used... Never pushed it at all. Dead right after one year
Original Poster
Pro
Jul 4, 2026 2:10 AM
3.5K Comments
Joined Sep 2016
vid1900
Original Poster
Pro
Jul 4, 2026 2:10 AM
3.5K Comments
Quote from kevin_1981 View quoted comment :
Had this for a year and barely used... Never pushed it at all. Dead right after one year
Did you use a credit card that doubled the manufacturer warranty?
Jul 4, 2026 4:49 AM
1.3K Comments
Joined Feb 2010
ROOSKIEJul 4, 2026 4:49 AM
1.3K Comments
Quote from xtp View quoted comment :
You're not sensitive to distortion that low. It just rumbling.

The biggest problem is room mods.
Distortion down low is an issue but yah I get what you are trying to say.
That said high levels of distortion in the bass can sound very muddy or overly warm - or even like crap.

If you have a 30hrz tone playing loudly and harmonic distortion ramps up to -10db (which not uncommon when stuff is abused or not understood well) then you have can have an extra- not in the recording- 60hrz tone (2nd order) and a 90hrz tone (3rd order) play at half the perceived volume of the original tone. That will sound muddy and that is harmonic distortion. Non harmonic distortion such as Doppler(very audible) and intermodular sounds much worse and the whole thing can sound like crap over driven.

So yah buy a clean sub with enough amplifier power to handle the job.
Jul 4, 2026 4:53 AM
1.3K Comments
Joined Feb 2010
ROOSKIEJul 4, 2026 4:53 AM
1.3K Comments
Quote from xtp View quoted comment :
There are very few boxes for good sub correction.

They usually use very basic parametric eqs, when in reality you need ALOT of processing horsepower to produce smooth behavior.

Most also don't do timing but this is less noticeable, more of a texture.
non-sense.

The issue is making sure you don't try to fill in acoustic nulls due to room modes and SBIR (look this stuff up) which just makes them worse and overdrives the amp.

Timing or 'time delay' if that is what you mean is a non issue with bass in most rooms due to the wavelength. You really think it matters to add some small delay to a 30 or 40ft wave in a room 15x18 feet or whatever?
Jul 4, 2026 4:58 AM
9.1K Comments
Joined Nov 2008
hungrytigerJul 4, 2026 4:58 AM
9.1K Comments
Thanks OP!

Was looking at WootLMAO

Oh well!

The double bass can play extremely low notes, typically down to E1 (41.2 Hz), with extensions allowing notes as low as C1 (32.7 Hz)

5-string bass guitar can reach even lower frequencies, with the low B string around 31 Hz

8 Hz
The lowest note that a pipe organ can sound is C −1 (or CCCC), which is 8 Hz, below the range of human hearing and not visible on the chart. However, if acoustic combination (a note and its fifth) counts, the lowest note is C −2 (or CCCCC), which is 4 Hz. In terms of recording and reproduction, many speakers have a low limit of around 40–60 Hz.


Had a set of 4 acoustic suspension Altecs 15" woofers with 5" voice coils (made in USA) (voice of theater set up) that I think were 18Hz. Vietnam era incredible stuff.

Those things are for folks who never move and have a house built around their sound system and don't have a wife that complains.

Go to a large church with a hudge pipe organ and enjoy. I did that on a military trip in Belgium and sat in that church for over an hour and enjoyed every minute.
Last edited by hungrytiger July 3, 2026 at 10:35 PM.
Jul 4, 2026 5:02 AM
1.3K Comments
Joined Feb 2010
ROOSKIEJul 4, 2026 5:02 AM
1.3K Comments
Quote from fintlewoodlewix View quoted comment :
Music doesn't hit 30 hz? Fascinating. Tell me more.

It does but not that often.
Some large pipe organs, some very large drums, some grand piano's hit around 30hrz
Some electronica, some dub-step, some hip hop/rap
If you need it you need it.
You can not really hear 30hrz at any SPL level though you can feel it. Anything you hear at 30hrz is cabinet vibrations or vibrations in things in the room - or distortions produced in addition to the 30hrz 'note', such as hearing 60hrz as the 2nd order harmonic distortion.

A 4 string bass hits 41hrz

Most typical home sized rooms add about 10db/per octave below 100hrz so a sub that is 10db down at 30hrz is actually not so when in room.

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Jul 4, 2026 5:09 AM
3.5K Comments
Joined Jul 2017
fintlewoodlewixJul 4, 2026 5:09 AM
3.5K Comments
Quote from ROOSKIE View quoted comment :
It does but not that often.
Some large pipe organs, some very large drums, some grand piano's hit around 30hrz
Some electronica, some dub-step, some hip hop/rap
If you need it you need it.
You can not really hear 30hrz at any SPL level though you can feel it. Anything you hear at 30hrz is cabinet vibrations or vibrations in things in the room - or distortions produced in addition to the 30hrz 'note', such as hearing 60hrz as the 2nd order harmonic distortion.

A 4 string bass hits 41hrz

Most typical home sized rooms add about 10db/per octave below 100hrz so a sub that is 10db down at 30hrz is actually not so when in room.
Take your sub. Listen to a song. Turn on high pass at 30 hz. Listen. Turn off high pass. Listen. Go back and forth a few times. A LOT of music shows a difference for A LOT of genres.

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