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TattyBear | Staff 18.7K Views
Dec 6, 2025 2:51 AM

Monoprice 12" 150W Powered Slim Low Profile Subwoofer

$130

$250

48% off
+ Free Shippingat Monoprice
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Deal Details
Monoprice has Monoprice 12" 150W Powered Slim Low Profile Subwoofer (SSW-12, 35847) on sale for $129.99. Shipping is free.

Thanks to Deal Hunter TattyBear for sharing this deal.

About this product:
  • Slim 12" 150W powered subwoofer for flexible room placement
  • Low-profile ported design fits under chairs, sofas, or stands
  • Engineered enclosure delivers strong bass despite compact size
  • Includes brackets for optional on-wall mounting
  • Ideal for rooms needing space-saving subwoofer placement
Specs:
  • 12" Ported Bass-Reflect Driver Enclosure
  • Amplifier Power 150W w/ <0.5% THD
  • Line Level RCA/Speaker Level Terminals
  • 20 ~ 150Hz (-10dB) Frequency Response
  • Volume/Low Pass Filter
  • 29.9"x19.7"x7" (39 lbs)

Editor's Notes

Written by jimmytx | Staff
  • About this Store:
    • Refer to Monoprice's Return Policy here.
  • Additional Information:
    • This offer is slightly more ($6.25) than our front page deal price of $123.74 from August 2023 which earned over 20 thumbs up.
    • Rated 4.7 out of 5 stars at Monoprice based on over 15 customer reviews.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by TattyBear | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Monoprice has Monoprice 12" 150W Powered Slim Low Profile Subwoofer (SSW-12, 35847) on sale for $129.99. Shipping is free.

Thanks to Deal Hunter TattyBear for sharing this deal.

About this product:
  • Slim 12" 150W powered subwoofer for flexible room placement
  • Low-profile ported design fits under chairs, sofas, or stands
  • Engineered enclosure delivers strong bass despite compact size
  • Includes brackets for optional on-wall mounting
  • Ideal for rooms needing space-saving subwoofer placement
Specs:
  • 12" Ported Bass-Reflect Driver Enclosure
  • Amplifier Power 150W w/ <0.5% THD
  • Line Level RCA/Speaker Level Terminals
  • 20 ~ 150Hz (-10dB) Frequency Response
  • Volume/Low Pass Filter
  • 29.9"x19.7"x7" (39 lbs)

Editor's Notes

Written by jimmytx | Staff
  • About this Store:
    • Refer to Monoprice's Return Policy here.
  • Additional Information:
    • This offer is slightly more ($6.25) than our front page deal price of $123.74 from August 2023 which earned over 20 thumbs up.
    • Rated 4.7 out of 5 stars at Monoprice based on over 15 customer reviews.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by TattyBear | Staff

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Top Comments

fyreboltx
3.1KComments
283Reputation
That's the nice thing about subwoofers, you can never have "too much" since you can just turn them down.. it's always the case of "not enough".
Go to Comment
swechsler
5.5KComments
1.2KReputation
Also available from Amazon for the same price [amazon.com].
Go to Comment

Community Reviews

This is a slim 12 inch powered subwoofer built for tight spaces, with enough output for modest setups and a little extra thump for bookshelves, soundbars, or a bedroom home theater. The low 7 inch height can fit under some regular LoveSac seats, and the compact profile is the main appeal. It is not a high end sub, and the cabinet, driver, and bass quality are described as basic rather than refined. Fit and placement matter, the cable is not included, and the connection options are limited without a sub output.

  • people trying to add "a little thump" to a modest bedroom or small home theater setup because it's a low-profile, space-saving 12" that should be enough for pairing with bookshelves or a soundbar.

    swechslerFranksAndBeanscapricioTodayOnly

  • buyers who need a powered sub that can fit under a regular couch/seat because measurements suggest it should clear under a non-storage seat (about 10" from cushion bottom to floor) even though it's only 7" high.

    swechsler

  • home theater users with an AVR who want to improve bass response because if your receiver has sub EQ it can help address the tendency of cheaper subs not to play very low or very flat.

    FranksAndBeans

  • stereo/2-channel setups where you can route bass to the sub because a stereo receiver or properly adjusted home theater receiver can set speakers to small and feed only bass to the sub for better headroom and dynamics.

    hellonwheelz

  • people pairing with a budget soundbar for a bedroom HT upgrade because commenters specifically recommend pairing it with a $50 Yamaha soundbar refurb and call it a solid upgrade.

    capricio

  • buyers who want to connect using a dedicated subwoofer output from their receiver because this model doesn't have a sub output and is described as direct digital, limiting connection options.

    room209

  • people planning to place it under a storage seat or in a tightly enclosed spot because it likely won't fit under a storage seat and ventilation could be an issue if you put it inside.

    swechsler

  • neighbors/households expecting it to be loud enough to rattle pictures because it should provide some thump but "won't knock the pictures off the wall" in a neighbor's house.

    TodayOnly

  • buyers who need a weather-resistant or outdoor-ready subwoofer because it isn't weather resistant and the setup requires low-level line inputs.

    Baron_O_BeefStick

  • buyers who are sensitive to "cheap/boomy" sound quality compared with a higher-tier sub because one commenter preferred the Monolith M10 V12 and found this one sounded cheap and boomy for their taste.

    Brunoslack

Common Questions (5)

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

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33 Comments

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Dec 10, 2025 5:30 PM
112 Comments
Joined Nov 2011
Baron_O_BeefStickDec 10, 2025 5:30 PM
112 Comments
I have a pair of SAMSUNG MX-ST50B Sound Tower bluetooth speakers I use outside. I understand this would need to be plugged in and is not weather resistant. I got the Samsung's relatively cheap and love them but bass drops in deathcore songs etcera do not hit the way I wish, even with the sound towers plugged in. I was going to grab a Monoprice Monolith 12 open box but they weigh quite a bit. The rockville powered 18 dj subwoofer was another option but it weighs 80+ lbs. The subwoofer needs low level line inputs. The samsung's aren't really supposed to have a subwoofer connected to them since it would be a full range signal sent to the subwoofer but the low pass filter should handle that. I feel like this may not be enough though. If the monolith 10 was 450$ shipped I would use one of them. Any advice on a subwoofer that would work for this situation. It doesn't need to be weather resistant but it does need to be a good bang for buck. I have dual monolith 10's and one of em already has water damage that does not impact performance. I would just use that one outside and replace it with a crisp monolith 10. I have elemental designs a2-300's in the garage and one of em has that truck bed liner coating but damn they are big lol. I have not seen a good bang for buck weather resistant subwoofer, esp that runs off an internal battery.
Pro
Dec 13, 2025 3:10 AM
1.6K Comments
Joined Sep 2018
Zorba1446
Pro
Dec 13, 2025 3:10 AM
1.6K Comments
Quote from Baron_O_BeefStick View quoted comment :
I have a pair of SAMSUNG MX-ST50B Sound Tower bluetooth speakers I use outside. I understand this would need to be plugged in and is not weather resistant. I got the Samsung's relatively cheap and love them but bass drops in deathcore songs etcera do not hit the way I wish, even with the sound towers plugged in. I was going to grab a Monoprice Monolith 12 open box but they weigh quite a bit. The rockville powered 18 dj subwoofer was another option but it weighs 80+ lbs. The subwoofer needs low level line inputs. The samsung's aren't really supposed to have a subwoofer connected to them since it would be a full range signal sent to the subwoofer but the low pass filter should handle that. I feel like this may not be enough though. If the monolith 10 was 450$ shipped I would use one of them. Any advice on a subwoofer that would work for this situation. It doesn't need to be weather resistant but it does need to be a good bang for buck. I have dual monolith 10's and one of em already has water damage that does not impact performance. I would just use that one outside and replace it with a crisp monolith 10. I have elemental designs a2-300's in the garage and one of em has that truck bed liner coating but damn they are big lol. I have not seen a good bang for buck weather resistant subwoofer, esp that runs off an internal battery.
RSL 10s. But not weather proof.
Dec 17, 2025 5:56 AM
309 Comments
Joined Jul 2013
BrunoslackDec 17, 2025 5:56 AM
309 Comments
Received it today and not really impressed, probably because i had monolith m10 v12, this one fits great in tight space but not what I was hoping for, it sounds cheap and boomy for my taste, wish i ordered them from amazon for free returns

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