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JBL Synthesis S4S Subwoofer

Dual 10″ (250mm) Flush-mount Passive Subwoofer

The S4S flush-mount passive subwoofer is part of the Synthesis Four system, offering you a choice of ways to fill 7,500 cubic feet of space with dramatic, full-spectrum sound from compact system components. Begin with three-way, in-wall main loudspeakers (one S4HC and two S4VC’s). Back them up with two S4S subwoofers and an S820 amplifier for an all-in-wall solution and four S4Ai in-wall multipole surrounds. Add the power of an SDP-40HD processor/controller, SDEC-3000 digital equalizer and S7165 7-channel amplifier.

A complete S4S loudspeaker system includes the S4S in-wall subwoofer and the S4SBB back box, which must be purchased separately. A high-quality, external two-channel power amplifier, such as the JBL Synthesis S820, is also required, and must be purchased separately.

Specifications:

Frequency Response 20Hz – 150Hz (THX®/LFE mode)(–6dB)
Maximum Recommended Amplifier Power 500 Watts per channel
Impedance 4 Ohms nominal
Sensitivity 88dB (2.83V/1m), both woofers driven
Woofer Dual 10″ polymer-coated aluminum cones w/rubber surrounds
Cutout Dimensions (H x W) 15″ x 24.55″ (381mm x 624mm)
Mounting Depth 64″ x 14″ x 5.1″ (1626mm x 356mm x 130mm) mounted in S4SBB enclosure, not including Styrofoam™ blocks.
Back Box A complete S4S loudspeaker system includes the S4S in-wall subwoofer and the S4SBB back box, which must be purchased separately.
Weight per Speaker 24 lb (10.9kg)