Free-Standing Regenerative Transmission Line® RTL Subwoofer

The SAS occupies less than 60 percent of the space of the SCS Subwoofer. The diminutive size of the SAS belies its amazing performance, featuring one of the same woofers used in both the S90i and SCS, with extension to 30Hz. Its highly efficient and compact Regenerative Transmission Line® design yields fast, dynamic, articulate results with accurate timbre.

Key Features



Regenerative Transmission Line® design

Key Benefits

Highly Detailed & Dynamically Accurate

(1) Custom designed high-output long throw 5”x7” woofer


Multi-port design allows for flexibility in how the SAS output is ported into the room

More Features

Flat frequency response across a 30Hz-80Hz 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 30Hz – 80 Hz ± 3dB relative to the target curve
Impedance 8 ohms
Sensitivity 90 dB / 2.83V / 1m
Power handling, peak 450w
Maximum SPL 115dB / 30Hz / 1m
Shipping weight 45 lbs. (20 kg)
Dimensions HxWxD 18” x 27” x 7” (45.7cm x 68.6cm x 17.8cm)