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SA-CS9M2 Active Subwoofer (2026)

$329.99
/ mo

SA-CS9M2 Active Subwoofer (2026)

New Model: SA-CS9M2

$329.99

Or
Starting

/mo


or 0% APR

$329.99

Or
Starting

/mo


or 0% APR
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Est. Delivery Aug 7-10

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©2026 Sony Electronics, Inc. All rights reserved. Reproduction in whole or in part without written permission is prohibited. Sony and the Sony logo are registered trademarks of Sony Corporation. All other trademarks are trademarks of their respective owners. Features and specifications are subject to change without notice.

What are the key features of the Sony SA-CS9M2 Active Subwoofer?

The SA-CS9M2 is an active subwoofer with a 10 in. woofer that delivers deep, thumping bass, and a bass reflex enclosure for distortion-free, low-frequency sound. It's designed as a perfect companion to Sony AV receivers, bringing cinema sound home for both movies and music.

How does the bass reflex enclosure improve sound performance?

The bass reflex enclosure is built on a strong, enclosed structure with ducts that suppress unwanted noise and improve low-frequency sound reproduction. This delivers deep, powerful bass while keeping sound pure and natural for music and movies.

What size is the woofer on the SA-CS9M2?

The SA-CS9M2 features a 10 in. (250 mm) cone diaphragm woofer. Its larger cone moves a greater volume of air, producing powerful low-end resonance that makes bass sound rich and authentic.

What is the frequency range and power output of the SA-CS9M2?

The SA-CS9M2 has a playback bandwidth of 28–200 Hz and a practical maximum amplifier output of 125 W. It also offers an adjustable low-pass (high-cut) filter from 50–200 Hz to match your main speakers.

How does the SA-CS9M2 reduce unwanted vibration?

Suppressing cabinet vibration is essential for tight, accurate bass, so the SA-CS9M2 absorbs rear pressure waves and dampens internal cabinet movement. Carefully selected materials and layout minimize vibration for greater clarity.

What kind of components are used in the SA-CS9M2?

The SA-CS9M2 uses premium componentry for exceptional sound, including high-quality materials like silicon steel plates in the woofer and thick winding materials. These contribute to consistent, high-performance output.

Is the SA-CS9M2 a good match for a home theater setup?

Yes, the SA-CS9M2 is part of Sony's CS Speaker series, which brings cinema sound home with crisp, clear, immersive audio. It reinforces low-frequency sounds in movies and music and serves as a perfect companion to Sony AV receivers.

How much does the Sony SA-CS9M2 Active Subwoofer cost?

MSRP is listed as $329.99. Given that, these models can go on sale from time to time, and there are several other opportunities to save on price like through their group discounts for education, healthcare and military/veterans (ID.me & Unidays) along with their free loyalty program that gives up to 5% back in points.

What payment options are available for the SA-CS9M2?

You can pay in 4 interest-free payments or as low as $28/mo with Affirm, with rates as low as 0% APR on orders over $50. Buying directly from Sony also includes free shipping, easy returns, and up to 5% back in My Sony points.

*FAQ generated on 07/24/2026. Financing, pricing and promotions may no longer apply.