S57i

In-Wall (2×4) RTL Subwoofer

The S57i is a high output transmission line Subwoofer delivering speed and tonality, with incredible bass extension to 25Hz. Mounted in-ceiling or in-wall (4″ depth), it is a rare example of a custom install centric design that offers performance matching the finest freestanding options.

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.

Key Features

In-Wall (2×4) with Grille
Regenerative Transmission Line® design

Highly Detailed & Dynamically Accurate
(1) Custom Designed High-Output 10″ Woofer

Flat Frequency Response Across a 25Hz-130Hz Operating Range
(1) 10″ High Operating Woofer
Requires DSP
(1) Channel of Power Amplification per Subwoofer Required

Specification

Frequency Response	25Hz – 130 Hz ± 3dB / -10dB at 22Hz
Impedance	8 ohms
Sensitivity	84 dB / 2.83 V / 1m
Power Handling, Peak	500w
Maximum SPL	108dB / 1m
Product Weight	40 lbs. (18 kg)
Shipping Weight	48 lbs. (22 kg)
Dimensions – HxWxD	53.27” x 16” x 4.13” (1353mm x 406mm x 105mm)