Monoprice

Monoprice 133829 SSW-8 Slim 8" 100W Powered Subwoofer

Name: Monoprice 133829 SSW-8 Slim 8" 100W Powered Subwoofer
Brand: Monoprice
SKU: 133829

★★★★★3.7 (213 reviews)

100W

A slim, wall-mountable 8" powered subwoofer that tucks under furniture and still reaches down to 30Hz.

$147.99*$184.99Save 20%

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*Price sourced from Amazon.com. Last updated:Jun 28, 2026.Price and availability are subject to change.

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Overview

The Monoprice SSW-8 (Model 133829) takes a different approach to home audio bass by housing a full 8-inch woofer inside a slim, ported enclosure designed to disappear into your living space. Unlike traditional box-shaped subwoofers that demand a dedicated corner or floor spot, the SSW-8 can slide under a couch, tuck behind a TV stand, or mount directly on a wall. Its bass-reflex ported design helps maximize output from the compact form factor, with a frequency response that extends down to 30Hz — low enough to reproduce the deep rumble in movie soundtracks and music bass lines with genuine authority.

The onboard 100-watt amplifier is purpose-built for subwoofer duty and provides adjustable controls for volume, low-pass filter (crossover), and phase, making it straightforward to blend the SSW-8's output with your existing speakers. Dual input options — line-level RCA jacks and speaker-level terminals — ensure compatibility with receivers, integrated amplifiers, and powered speaker setups alike. Backed by Monoprice's one-year replacement warranty and 30-day money-back guarantee, the SSW-8 is a practical solution for anyone who wants to add meaningful bass to their home theater or music system without sacrificing living space to a bulky subwoofer cabinet.

Key Features

Slim, low profile: the Monoprice ssw-8 features a ported cabinet that's designed to deliver ample bass output from a slim, low profile enclosure. You can slide it under your favorite chair or sofa, place it behind your TV stand, or even Mount it on your living room wall

8" Ported design: the ssw-8 features a full-sized 8" Woofer housed in a ported, bass-reflex enclosure that is designed to maximize bass output from its slim, low profile design. With a frequency response that extends down to 30Hz, you won't have to skimp on the bass

Powerful amplifier: the ssw-8 is outfitted with a 100-watt amplifier designed specifically for subwoofers. It features the ability to set volume, low Pass filter, phase, and is equipped with both line level RCA jacks and speaker level Terminal inputs

Buy with confidence: Monoprice not only stands behind every product we sell with a 1 year Replacement warranty, We offer a 30-day money back guarantee as well!

Quality at a fair price: Monoprice's rugged design and rigid quality control standards deliver high quality products at fair prices

Specifications

Brand

Monoprice

Model

133829

Type

Powered Subwoofer

Woofer Size

8 inches

Amplifier Power

100 Watts

Frequency Response

Down to 30Hz

Inputs

Line-Level RCA, Speaker-Level Terminals

Controls

Volume, Low-Pass Filter, Phase

Cabinet Design

Ported / Bass-Reflex, Slim Profile

Wall Mountable

Yes

Color

Black

Warranty

1 Year Replacement

Pros & Cons

👍 Pros

Slim, low-profile enclosure fits under furniture or mounts on a wall where traditional subwoofers cannot
Frequency response reaching down to 30Hz delivers solid low-end from a compact form factor
Both RCA and speaker-level inputs provide flexible connection options with almost any audio setup
Built-in 100W amplifier with adjustable crossover and phase controls for easy room integration

👎 Cons

100 watts of power may not fill very large rooms or satisfy listeners who want chest-thumping bass
Slim cabinet design inherently limits maximum output compared to deeper, larger subwoofer enclosures
No wireless input option, so cable routing is required to connect to your audio system
Limited to a single 8-inch driver, which may lack the low-frequency extension of larger 10" or 12" subwoofers in demanding setups

Frequently Asked Questions

How thin is the Monoprice SSW-8, and can it really fit under a sofa?

The SSW-8 uses a slim, low-profile cabinet design specifically intended to slide under furniture like sofas or chairs, or to sit discreetly behind a TV stand. Its reduced depth compared to traditional cube-shaped subwoofers makes this possible.

What inputs does the SSW-8 support for connecting to a receiver or amplifier?

The SSW-8 accepts both line-level RCA inputs and speaker-level terminal inputs, so it can connect to virtually any receiver, amplifier, or soundbar that has a subwoofer output or speaker terminals.

Can I mount the SSW-8 on a wall?

Yes, the SSW-8 is designed to be wall-mountable, giving you additional placement flexibility if floor or furniture placement isn't ideal for your room layout.

Does the SSW-8 have adjustable crossover and phase controls?

Yes, the built-in amplifier includes adjustable volume, a low-pass filter for setting the crossover frequency, and a phase switch to help integrate the subwoofer with your main speakers.