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frontpageLavenderGoat459 posted Jul 15, 2026 2:15 PM

12" Monoprice SW-12 400W RMS Powered Subwoofer Speaker (Black)

$180

$365

50% off
+ Free S&Hat Amazon
15 Comments
5.2K Views
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Deal Details
Amazon has 12" Monoprice SW-12 400W RMS Powered Subwoofer Speaker (Black) on sale for $179.99. Shipping is free.

Alternatively, Monoprice also has 12" Monoprice SW-12 400W RMS Powered Subwoofer Speaker (Black) on sale for $179.99. Shipping is free.

Thanks to Deal Hunter LavenderGoat459 for finding this deal

Note, product must be sold/shipped by Amazon or Monoprice respectively.

Editor's Notes

Written by Discombobulated | Staff
  • Price Research
    • At the time of research, this product is $185 lower (50.69% savings); normally priced for $364.99
  • About the Deal
    • This Monoprice SW-12 powered subwoofer adds deeper bass w/ more dramatic impact; front firing 12" woofer, 400W RMS amplifier (600W peak/3 ~150Hz frequency response) w/ down-firing port w/ variable phase control and low pass filter
    • Product is eligible for refund/replacement within 30-days of purchase
    • Offer valid while promotional price/supplies last
  • Additional Details

Original Post

Written by LavenderGoat459
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has 12" Monoprice SW-12 400W RMS Powered Subwoofer Speaker (Black) on sale for $179.99. Shipping is free.

Alternatively, Monoprice also has 12" Monoprice SW-12 400W RMS Powered Subwoofer Speaker (Black) on sale for $179.99. Shipping is free.

Thanks to Deal Hunter LavenderGoat459 for finding this deal

Note, product must be sold/shipped by Amazon or Monoprice respectively.

Editor's Notes

Written by Discombobulated | Staff
  • Price Research
    • At the time of research, this product is $185 lower (50.69% savings); normally priced for $364.99
  • About the Deal
    • This Monoprice SW-12 powered subwoofer adds deeper bass w/ more dramatic impact; front firing 12" woofer, 400W RMS amplifier (600W peak/3 ~150Hz frequency response) w/ down-firing port w/ variable phase control and low pass filter
    • Product is eligible for refund/replacement within 30-days of purchase
    • Offer valid while promotional price/supplies last
  • Additional Details

Original Post

Written by LavenderGoat459

Community Voting

Deal Score
+27
Good Deal
Get Deal at Amazon

Top Comments

CalmMitten9192
1684 Posts
102 Reputation
Get the Dayton CS1200 (improved legendary Sub-1200) for a little more and you have something that both sounds good and where you have a much higher chance of finding a replacement plate amp if it ever fails than with this disposable China sub. Nothing against mono as a company and I have some of their THX speakers which are awesome.
AquaVolcano980
260 Posts
34 Reputation
The Dayton only has 200 watts vs. 400 for the Monoprice, the Dayton uses spring clips instead of binding posts for speaker level connections, and is also made in China. The reviews on Monoprice don't mention a single amp failure, so I'm not seeing the benefit of the Dayton.

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15 Comments

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Jul 15, 2026 2:52 PM
1,684 Posts
Joined Oct 2020
CalmMitten9192Jul 15, 2026 2:52 PM
1,684 Posts

Our community has rated this post as helpful. If you agree, why not thank CalmMitten9192

Get the Dayton CS1200 (improved legendary Sub-1200) for a little more and you have something that both sounds good and where you have a much higher chance of finding a replacement plate amp if it ever fails than with this disposable China sub. Nothing against mono as a company and I have some of their THX speakers which are awesome.
2
Jul 15, 2026 3:08 PM
12,978 Posts
Joined Jul 2010

This comment has been rated as unhelpful by Slickdeals users.

Jul 15, 2026 3:14 PM
68 Posts
Joined Mar 2019
MichaelM25Jul 15, 2026 3:14 PM
68 Posts
Same price Amazon , 3 star review average, skip
Jul 15, 2026 3:17 PM
260 Posts
Joined Sep 2022
AquaVolcano980Jul 15, 2026 3:17 PM
260 Posts

Our community has rated this post as helpful. If you agree, why not thank AquaVolcano980

The Dayton only has 200 watts vs. 400 for the Monoprice, the Dayton uses spring clips instead of binding posts for speaker level connections, and is also made in China. The reviews on Monoprice don't mention a single amp failure, so I'm not seeing the benefit of the Dayton.
2
1
Jul 15, 2026 4:39 PM
12,978 Posts
Joined Jul 2010
supermanrobJul 15, 2026 4:39 PM
12,978 Posts
Quote from AquaVolcano980 :
The Dayton only has 200 watts vs. 400 for the Monoprice, the Dayton uses spring clips instead of binding posts for speaker level connections, and is also made in China. The reviews on Monoprice don't mention a single amp failure, so I'm not seeing the benefit of the Dayton.
Good points.
IF the Dayton was a better choice "for a little more", that's around $60(on sale).

"For a little more" the RSL 10e might be the better choice.

If I recall, the RSL 10e is made in China also.
4
Jul 15, 2026 4:44 PM
40 Posts
Joined Mar 2024
FairBorder6027Jul 15, 2026 4:44 PM
40 Posts
Quote from supermanrob :
Wow great reviews saying great room shaking sound, Butterworth approved all for $180! Now that sounds like a great price-to-performance winner!!! You could almost get two for the price of the popular RSL 10e!!! People often say two is better than one & this is bigger & 12" not a 10" like the 10e!!!
So two of these beat a single rsl 10e? Hmmm
4
Jul 15, 2026 5:27 PM
195 Posts
Joined Feb 2009
carbondealJul 15, 2026 5:27 PM
195 Posts
For subs honestly what I found for theater at least you need a 15". Plus low end extension cheap subs like this just won't do. Max db output imo don't matter as much as low range and box tuning for 17Hz.
4

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Jul 15, 2026 7:04 PM
12,978 Posts
Joined Jul 2010
supermanrobJul 15, 2026 7:04 PM
12,978 Posts
Quote from FairBorder6027 :
So two of these beat a single rsl 10e? Hmmm
Well that's a whole other rabbit hole question/topic!

You're gonna get a vast difference of opinions on that question, especially taking into account the cost of the performance difference!
1
Jul 15, 2026 10:10 PM
5,096 Posts
Joined Aug 2006
hugeJul 15, 2026 10:10 PM
5,096 Posts
Quote from carbondeal :
For subs honestly what I found for theater at least you need a 15". Plus low end extension cheap subs like this just won't do. Max db output imo don't matter as much as low range and box tuning for 17Hz.
Good point. I think this is true. I have 2 of the monoprice and doesn't sound that great. Not bad, but could be better
Yesterday 11:10 AM
2,720 Posts
Joined Jul 2004
ilovetofuYesterday 11:10 AM
2,720 Posts
Tempting price but the reviews regarding amp failures are concerning, so I'm reluctant to take a chance. Also, I don't know about the 12" Dayton but I bought an 8" one and couldn't use it for TV/movies because it powers off too quickly in "auto" mode if the receiver isn't constantly sending it a signal. I ended up using it with a stereo system for music, and it's fine for that.
2
Yesterday 1:37 PM
1,323 Posts
Joined Nov 2009
TNFergusYesterday 1:37 PM
1,323 Posts
Quote from FairBorder6027 :
So two of these beat a single rsl 10e? Hmmm
Shocking, eh...
1
Yesterday 1:42 PM
1,323 Posts
Joined Nov 2009
TNFergusYesterday 1:42 PM
1,323 Posts
Quote from AquaVolcano980 :
The Dayton only has 200 watts vs. 400 for the Monoprice, the Dayton uses spring clips instead of binding posts for speaker level connections, and is also made in China. The reviews on Monoprice don't mention a single amp failure, so I'm not seeing the benefit of the Dayton.
Customer service, for starters. But I wouldn't look on an OEM web site for reviews of a product. Who knows what may have been removed. The Amazon reviews are pretty bleak compared to the Dayton. For whatever that's worth.
1
Yesterday 1:43 PM
93 Posts
Joined Nov 2015
DJ_Cat_DadYesterday 1:43 PM
93 Posts
How would this do for a basic sound system?
Yesterday 2:07 PM
29 Posts
Joined Jan 2016
k4ylrYesterday 2:07 PM
29 Posts
Quote from DJ_Cat_Dad :
How would this do for a basic sound system?
More than adequate for your basic 2.1 or even 5.1. If this frees up some budget to get better speakers or take your 2.1 to 3.1 or even 5.1 it is a worthwhile trade off IMHO for all but the most discerning of HT enjoyers.
1

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Yesterday 10:39 PM
16 Posts
Joined Nov 2024
SmartFriction5417Yesterday 10:39 PM
16 Posts
Quote from CalmMitten9192 :
Get the Dayton CS1200 (improved legendary Sub-1200) for a little more and you have something that both sounds good and where you have a much higher chance of finding a replacement plate amp if it ever fails than with this disposable China sub. Nothing against mono as a company and I have some of their THX speakers which are awesome.
Monoprice actually sells there plate amps individually now

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