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vid1900 17.3K 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

Visit Monoprice

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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

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

Deal Score

+57

Good Deal

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Visit Monoprice

Price Intelligence

Deal History

Sale Price

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Today

Post Date	Sold By	Sale Price	Activity
08/03/23	Monoprice	$185 Popular	38
09/10/22	Monoprice	$212 Popular	48
10/27/21	Monoprice	$240	7

Top Comments

vid1900

3.6KComments

1.8KReputation

Review and field tests from Audioholics (fun pre-tariff pricing) :

https://www.audioholics.com/subwo...rice-sw-15

Go to Comment

CSOCSO

78Comments

18Reputation

Not sure why the website shows freq. response as 30hz to 150hz (-10db) That's crazy talk! The 12 inch measured down to 20 hz and this one measures down to 15 Hz! It's a super deal!!

Go to Comment

Ck2hi

1.3KComments

36Reputation

interested to see how much cringe bickering there will be on this post.

Go to Comment

Community Reviews

The Monoprice SW-15 is a budget 15-inch subwoofer that stands out for sheer output and deep bass for the money. Audioholics measurements are cited as showing strong performance well below the listed 30 to 150 hertz spec, with around 107 dB at 30 hertz and 98 dB at 20 hertz. It is also described as a solid fit for movies and capable with music, especially in larger rooms or with a soundbar sub mod. The main caution is reliability and support, since the plate amp has failed for some after about a year or two, and Monoprice service is not as hands-on as smaller subwoofer brands.

Common Questions (4)

At $250, the SW-15 is described as a lot of SPL for the money, while the RSL Speedwoofer 10E is about $315 with free shipping and is often favored for better warranty and build quality. The SW-15 is the cheaper, bigger-output option; the RSL is the pricier alternative if you can stretch the budget.
Friedsushi87 nytehawk dflock ScarletDeer6728
It can handle both music and movies well at this price, with enough output to "slam" in home theater and play music competently. For the best results, it benefits from room measurements, DSP/PEQ, and careful crossover setup, especially if your mains already reach fairly low.
BlueMallard431 TNFergus ROOSKIE vid1900
There are reports of the plate amp failing after about one to two years, sometimes outside the one-year warranty, and replacement can cost more than a new sub. That makes longevity a real concern even though the sub can sound very good while it lasts.
techie1980 kevin_1981 Zorba1446
Yes. Audioholics measurements cited in the thread put it at about 117.5 dB at 63 Hz, roughly 107 dB at 30 Hz, and about 98 dB at 20 Hz. That means the published 30-150 Hz (-10 dB) spec is conservative, and it can still produce useful output well below 30 Hz.
CSOCSO ROOSKIE

AI-generated summary based on comments from the community. Updated 4d ago

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72 Comments

Ck2hi

Jul 3, 2026 2:06 AM

1.3K Comments

Joined Nov 2023

Ck2hiJul 3, 2026 2:06 AM

1.3K Comments

interested to see how much cringe bickering there will be on this post.

rcaguy5

Jul 3, 2026 2:43 AM

1.2K Comments

Joined Nov 2017

rcaguy5Jul 3, 2026 2:43 AM

1.2K Comments

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

I'll begin, 15 inches and only goes down to 30hz?

AkujunkanX

Jul 3, 2026 2:48 AM

7.2K Comments

Joined Dec 2014

AkujunkanXJul 3, 2026 2:48 AM

7.2K Comments

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

Quote from rcaguy5

I'll begin, 15 inches and only goes down to 30hz?

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

CSOCSO

Jul 3, 2026 3:28 AM

78 Comments

Joined Nov 2024

CSOCSOJul 3, 2026 3:28 AM

78 Comments

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

Not sure why the website shows freq. response as 30hz to 150hz (-10db) That's crazy talk! The 12 inch measured down to 20 hz and this one measures down to 15 Hz! It's a super deal!!

borderdeal

Jul 3, 2026 3:42 AM

404 Comments

Joined Mar 2008

borderdealJul 3, 2026 3:42 AM

404 Comments

Quote from CSOCSO

Not sure why the website shows freq. response as 30hz to 150hz (-10db) That's crazy talk! The 12 inch measured down to 20 hz and this one measures down to 15 Hz! It's a super deal!!

Do you own one??? If it ca get to 15 Hz this is a crazy good price

serniter

Jul 3, 2026 3:57 AM

229 Comments

Joined Nov 2007

serniterJul 3, 2026 3:57 AM

229 Comments

The reviews on Amazon are not encouraging.

supermanrob

Jul 3, 2026 4:14 AM

13.5K Comments

Joined Jul 2010

supermanrobJul 3, 2026 4:14 AM

13.5K Comments

Quote from CSOCSO

Not sure why the website shows freq. response as 30hz to 150hz (-10db) That's crazy talk! The 12 inch measured down to 20 hz and this one measures down to 15 Hz! It's a super deal!!

You're probably thinking of their Monolith model.

vid1900

Original Poster

Pro

Jul 3, 2026 5:17 AM

3.6K Comments

Joined Sep 2016

vid1900

Original Poster

Pro

Jul 3, 2026 5:17 AM

3.6K Comments

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

Review and field tests from Audioholics (fun pre-tariff pricing) :

https://www.audioholics.com/subwo...rice-sw-15

Friedsushi87

Jul 3, 2026 9:30 AM

333 Comments

Joined Jun 2024

Friedsushi87Jul 3, 2026 9:30 AM

333 Comments

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

I mean, for like $70 more, you can get an RSL Speed Woofer.

Jul 3, 2026 10:52 AM

9.8K Comments

Joined Aug 2013

This comment has been rated as unhelpful by Slickdeals users.

AronMan

Jul 3, 2026 11:07 AM

1.3K Comments

Joined Feb 2024

AronManJul 3, 2026 11:07 AM

1.3K Comments

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

coupon also works on the 12" variant as well as a shit ton of other things. complete list here:
https://www.monoprice.com/cart/co...ame=SHOP50

nytehawk

Jul 3, 2026 2:41 PM

611 Comments

Joined Nov 2013

nytehawkJul 3, 2026 2:41 PM

611 Comments

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

Quote from Friedsushi87

I mean, for like $70 more, you can get an RSL Speed Woofer.

I just did. Speedwoofer 10E for $315 right now: https://rslspeakers.com/products/...woofer-10e
It's an okay sale on a great sub with free shipping. Record prices were ~$270 years ago, $299 recently. I didn't want to wait to replace my failed DT Supercube 2000 office sub any longer.

CleverCreature256

Jul 3, 2026 4:17 PM

1.2K Comments

Joined Nov 2022

CleverCreature256Jul 3, 2026 4:17 PM

1.2K Comments

Quote from xtp

People overthink subs, all subs sound horrible without DSP room correction. It doesn't matter how much the sub costs.Those anechoic measurements only validates the "power" they're claiming.Take any $1000 subwoofer, put it in any house, instant peak around 60-100 hz, instant trash.

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.

supermanrob

Jul 3, 2026 4:22 PM

13.5K Comments

Joined Jul 2010

supermanrobJul 3, 2026 4:22 PM

13.5K Comments

Quote from xtp

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.

Klg_

Jul 3, 2026 5:00 PM

102 Comments

Joined Jan 2021

Klg_Jul 3, 2026 5:00 PM

102 Comments

Quote from Ck2hi

interested to see how much cringe bickering there will be on this post.

You predicted the future accurately.

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Occasions 4th of July Tech & Electronics Audio / Video Home Audio Speakers Monoprice

Black Friday is days away. Pick your offers now.Black Friday is days away. Pick your offers now.

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

$250

$500

Editor's Notes

Original Post

Editor's Notes

Original Post

Community Voting

Price Intelligence

Deal History

Top Comments

Community Reviews

Best For / Not Worth It If (8)

Pros & Cons (8)

Common Questions (4)

Join The Conversation

72 Comments

Join The Conversation

Related Searches

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

$250

$500

Editor's Notes

Original Post

Editor's Notes

Original Post

Price Intelligence

Deal History Deal History includes data from multiple reputable stores, such as Best Buy, Target, and Walmart. The lowest price among stores for a given day is selected as the "Sale Price". Sale Price does not include sale prices at Amazon unless a deal was posted by a community member.

Top Comments

Community Reviews

Best For / Not Worth It If (8)

Pros & Cons (8)

Common Questions (4)

Is the Monoprice SW-15 a good value compared with the RSL Speedwoofer 10E?

Will the Monoprice SW-15 work well for music and movies?

Is the Monoprice SW-15 reliable long term?

Does the Monoprice SW-15 really reach below the listed 30 Hz spec?

Join The Conversation

72 Comments

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