In-Wall Regenerative Transmission Line® RTL Subwoofer

The S110i follows closely in the footsteps of our flagship model STS, widely recognized as a benchmark in subwoofer performance. In installations where the STS is impractical due to its large size, the S110’s compact form factor neatly accommodates a wide range of installation options. The subwoofer can be positioned within a screen wall and secured with its integrated mounting flange; vented into the room with a flexible port kit from an adjacent space, basement, or attic. The S110i has an incredible maximum SLP of 128dB at 30Hz.

Key Features


In/Behind Baffle and or Screen wall

Regenerative Transmission Line® design

Key Benefits

Highly Detailed & Dynamically Accurate

Custom designed high-output 10” woofer


Optional floor/ceiling extension port kit available for venting into a space from an adjacent room, attic, riser, ceiling, and or floor.

Optional floor/ceiling extension port kit – S110i-f/c

More Features

Flat frequency response across a 28Hz-80Hz +/- 2dB operating range

(1) High operating woofer

(DSP Required)

(1) Channel of Power Amplification

Per subwoofer required

The Regenerative Transmission Line®

Regenerative Transmission Line® designs yielded the unique combination of high sensitivity, high output, and low distortion with the uniform and extended response we required. The result is extraordinary power and punch combined with a remarkable level of quickness, tunefulness and realism.


Frequency response 28Hz – 80 Hz ± 2dB relative to the target curve
Impedance 6 ohms
Sensitivity 96 dB / 2.83V / 1m
Power handling, peak 2000w
Maximum SPL 128dB / 30Hz / 1m
Shipping weight 160 lbs. / 72.5 kg
Dimensions HxWxD 64.89” x 13.75” x 12” (165cm x 34.9cm x 30.5cm)