Sony SACS9 Compact Active Subwoofer

Last updated: March 6, 2023


This subwoofer provides the extra punch you need for your home theater system. It amplifies the noise and has an optimal bass response. The subwoofer is enclosed in a durable cabinet.

We looked at the top Subwoofers and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Subwoofer you should buy.

Product Details

Key Takeaway: This subwoofer creates a punchy listening experience.

In our analysis of 40 expert reviews, the Sony SACS9 Compact Active Subwoofer placed 3rd when we looked at the top 10 products in the category. For the full ranking, see below.

From The Manufacturer

Active 10” subwoofer perfect to provide that extra punch for your home theater or music listening setup. Amplify your movie, music, and gaming experience with a speaker that provides full frequency audio with a three-way coaxial, four-driver speaker system. Create a robust 5.1.2 home theater setup perfect for Dolby Atmos with the complete range of CS speakers from Sony with the SACS9 subwoofer, 2 SSCS3 tower speakers, 1 SSCS8 center channel speaker, 2 SSCS5 bookshelf speakers, and 2 SSCSE Dolby Atmos enabled speakers. 10” Dual layer mica woofer diaphragm delivers faithful sound and optimal bass response. Motion feedback technology utilizes detection circuitry to correct variations in the input signal, helping to prevent distortion. Cutoff frequency adjustment along with level adjustment, phase switching, and a power save mode allows for customer operation. Bass reflux enclosure with a woof cabinet and cloth grille offers a durable design.

Expert Reviews


What reviewers liked

Subsequent discounts from the MSRP have made this a very competitive choice among the lowest priced subwoofers on the market.
Wide frequency range. Durable design. Tuning options are available.
A powered subwoofer, which offers a perfect bass response and is a treat for audiophiles and music lovers.
No distortion can be heard at any volume. Wide frequency response of 28 Hz – 200 Hz. Compact size.
Great Value for Features. Compact Design and Easy Placement. Solid Bass Production with Minimal Distortion.
Good Durability. Compact. Tuning options. Great frequency range. Superb bass sound quality.
Good Tight Bass. Relatively Small for a Subwoofer. Fantastic Price.

What reviewers didn't like

Better for pairing with desktop speakers, and probably won’t be loud enough to match with full sized home theater speakers.
Power output is pretty low for the price.
Normal / reversed phase swithcing is not very convenient.
Short RCA cable. Power output isn’t that great compared to other options.
Many More Powerful 10″ Subs. Plain Design + Old Model.
Power output is on the low side. Disliked, Grille and design. Audio suffers if not placed correctly.
May Distort in Larger Rooms.
View our Subwoofer buying guide for in-depth advice and recommendations.

From our partners