System Controllers Amplifiers DSP Subwoofer Amplifiers Subwoofer Signal Processor

SW-1 DSP Sub Amplifier


SW-1 Image Gallery

Photos coming soon.

High Efficiency
While many contemporary amplifiers waste 50% or more of the power they pull from the wall as heat, the SW-1 amplifier runs at approximately 90% efficiency. As a result, more power is available for the subwoofer, and less is wasted as heat in the room.

The high efficiency of the design also means that multiple SW-1 subwoofer amplifiers can be placed in close proximity to each other, as is also the case with our SA-series amplifiers, in an equipment rack, without undue overheating. Of course, care must be taken to account for the heat generated by other components in the rack; but the Wisdom Audio SW-1 will not greatly contribute to the thermal management challenges of the rest of your system.

Powerful Signal Processing
Wisdom Audio uses an unusual Regenerative Transmission Line® (RTL®) design in our subwoofers. It provides exceptional transient response, for a subjectively “fast” and articulate bottom end which mates well to our unique thin-film technology.

However, as with most subwoofer designs, some signal processing is required to fully realize the performance potential of RTL designs. In most subwoofers, the requisite processing is simply built into the plate amplifier that is part of the subwoofer itself. This approach presents a problem, however, when the subwoofer is designed to be integrated into the home itself. Hence the SW-1, which allows the subwoofer’s amplifier to be placed in the rack with the rest of the electronics, while allowing the subwoofer to be placed wherever it will perform best, without violating building codes or even having to worry about having an AC outlet near the subwoofer location.

A single SW-1 can drive one S90i subwoofer, or also a single STS subwoofer in applications where moderate SPL is desired. 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.

Please visit our Where To Buy page to locate your closest authorized Wisdom Audio dealer in North America, or International Distributor in markets outside North America.

SW-1 Specifications:
All specifications are subject to change at any time, in order to improve the product.

Rated power output 370 watts continuous rms power @ 4Ω
from 20 Hz–20 kHz at <0.5% THD
Peak output current 30 amps
Voltage gain 31 dB
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
Shipping weight 12 lbs. (5.5kg)
Power consumption 500W (±5%) at full power
10W (±5%) at idle
0.5W (±5%) in standby

This component is pending independent certification by the internationally recognized testing laboratory TÜV SÜD for worldwide operation. Learn more about TUV here.

Owner's Manual
SW-1 Owner's Manual

Coming soon.