Subwoofer Amplifier with DSP

The SW-1 is designed to provide not only 90% amplifier efficiency delivering 370-watts of subwoofer driving power, but also the necessary DSP required for all Wisdom Audio RTL subwoofers. Each SW-1 is programmed for use with a specific subwoofer model and is not capable of supporting different subwoofer models simultaneously. The desired crossover frequency between the loudspeakers and the SW-1 is handled upstream in a surround processor.

Key Features

Key Benefits


On-board DSP for RTL subwoofers


Pre-programmed at factory

(1) SW-1 is capable of powering:

  • (2) S10
  • (2) S55i
  • (2) SAS
  • (1) SCS-2
  • (1) S90i
  • (1) S110i
  • (1) STS (in small rooms – please consult with Wisdom prior to using) 

More Features

90% Efficiency



Rated power output 370 watts continuous rms power @ 4Ω
from 20 Hz–20 kHz at <0.5% THD
Peak output current 30 amps
Input sensitivity 1.2V for full output
Input impedance 47 kΩ
Polarity Non-inverting
Signal to Noise ratio (main outputs) –100 dB (ref 1V rms, A-wtd.)
Output impedance Less than 0.05Ω from 20–20,000 Hz
Recommended load impedance 4-8Ω
Thermal load 3 BTU/minute or less
Mains voltage 100V-240V
Power consumption 500W (±5%) at full power
10W (±5%) at idle
0.5W (±5%) in standby
Shipping weight 12 lbs. (5.5kg)
Dimensions HxWxD 1.7” x 17” x 11.29” (4.32cm x 43.2cm x 28.68cm)