Sumiko S.9 Active Subwoofer, 350 Watt Amplifier, 10" Very Long Throw Woofer


Super capable sub from Sumiko featuring a 10" driver and a powerful built-in amplifier.

Working perfectly and sounding great.

Please see our last photo or the linked manual for full specifications:

Cosmetically it has slight surface scratches due to the nature of the black high gloss finish, almost impossible to keep looking new.

We have several of these available as of this writing if you require a pair.

Each sub includes a power cord and its original grill.

Sumiko S.9 Active Subwoofer - Owner's Manual

As the largest model in the S series, the S.9 will transform your system – any expectations you may have of it – into an engaging, dynamic experience, alive with movement and emotion. The S.9 will produce genuine, room-filling bass with ease, and simultaneously provide previously unheard details and textures guaranteed to thrill.

The Sumiko S.9 utilizes an active-passive configuration; one of the 10-inch drivers is controlled by the 350 watt amplifier, while the other, passive driver reinforces the output of the active driver. This additional surface effectively doubles the air moving capacity of the design. The result is more dynamic, prodigious bass across the entire room while reaching over a half octave below the S.5. Both speaker level and subwoofer (line) level inputs are provided for the most flexible connectivity, and the controls let you dial in the subwoofer to blend perfectly into your system.

One or more Sumiko S.9 subwoofers in your system will transform your listening experience into a spectacular, life-like engagement that will keep you in your seat song after song, scene after scene – all at a very reasonable price.



Original Box





Not Applicable


Yes - Power

Physical Condition


Working Condition


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