S57i

In-Wall (2×4) Transmission Line Subwoofer

Shipping in November 2024

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 Transmission Line

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
Transmission Line design

Highly Detailed & Dynamically Accurate

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)