Dynamo IW-S

Looking to add some bass to a system without the bulk of traditional subwoofers? Featuring dual 8” woofers, and an integrated fire rated back box, the Dynamo IW-S is one of the most flexible in-wall subwoofers on the market. It’s retrofittable size means you can even add it to existing construction without the hassle of drywall repairs. Blending performance with practicality, the Dynamo IW-S is perfect for a “zero footprint” Home Theater or Distributed Audio system.

Easily Add Bass, Almost Anywhere

Designed for quick installation into existing rooms without the need for expensive and time-consuming drywall repairs. The sealed, fire rated enclosure makes Dynamo IW-S suitable for a variety of residential or commercial applications, especially where sound control is desired.

Bass Without The Bulk

Purpose-built for high output and low distortion from a compact, retrofittable enclosure. The dual, 8” High-Excursion Carbon-Fiber-Reinforced Polypropylene woofers provide more surface area than a 10” sub for powerful, accurate bass without the bulk. The integrated enclosure ensures consistent performance in any application while reducing sound transmission to other areas of the home.


DesignDual 8" high-excursion drivers, in-wall, GRIP™ chassis/mounting bracket with custom steel enclosure, amplifier required (sold sep.)
Frequency Response+/-3dB from 77->190 Hz
Low Frequency Extension*†35 Hz (DIN)*
Max input power300W
Minimum Mounting Depth3-7/8” (9.8cm)
Low Frequency DriverTwo 210-mm (8 in) CFP™ carbon-fiber-reinforced polypropylene cones, 38-mm (1-1/2 in) voice coils, over-molded TPR™ surrounds, 38-mm (1-1/2 in) 8-layer copper wire voice coils, high-temperature polyamide formers, ceramic/ferrite magnet structures
Internal Volume7.5L
Suitable Amplifier Range50-600 W
Weight26.7lbs (12.5kg)
Dimensions (H x W x D)19-1/8” x 10-3/4” x 4.5” (48.5cm x 27.2cm x 11.5cm)
Cut-Out Dimensions18”x 9-5/8” (45.7cm x 24.5cm)
FinishWhite, paintable