Electronics V3


Power Amplifier

While many contemporary amplifiers waste 50% or more of the power they pull from the wall as heat, the SA-series amplifiers run at approximately 90% efficiency. As a result, more power is available for the loudspeaker, and less is wasted as heat in your room. Designed and built in the United States, the SA-3 DSP is a compact 2RU amplifier that delivers three channels of high-performance amplification at 500W per channel into four ohms, all channel-driven. This DSP model adds a DSP board, enabling all eight channels to provide the necessary digital active crossover, delay, gain, and digital EQ profiles, in addition to a Dante Digital Audio Input, and FIR Filters, for the ultimate in sound and loudspeaker setup and EQ. 

The high efficiency of the SA-series design also means that the amplifiers can be placed in close proximity to each other, as in an equipment rack, without undue overheating.

Key Features

Three Channels
3 x 500-Watts
Three-Wall Binding Posts

Flat Stackable

High Efficiency Design
Enormous Power Reserves


Rated Power Output Per Channel500 w/ch continuous RMS power @ 4 ohms above power ratings from 20 Hz–20 kHz at <0.5% THD
Peak Output Current> 30 amps
Voltage Gain31 dB
Signal to Noise Ratio (Main Outputs)–103 dB (ref 1V rms, A-wtd.)
Input Impedance25k ohms (balanced)
Output ImpedanceLess than 0.05 ohms from 20–20,000 Hz
Input Sensitivity1.2V for full output
PolarityNon-inverting, Pin 2 positive
Thermal Load7 BTU/minute or less
Power ConsumptionSee “Wisdom Electronics – Current Draw & BTU Info” in the Resources Section below
Main Voltage Ranges100V, 120V, or 230/240V determined by the needs of country for which the unit was manufactured; cannot be reset by dealer or user
Shipping Weight40 lbs. (19 kg)
Dimensions – HxWxD3.75” x 17” x 13.63” (8.57cm x 43.2cm x 34.7cm)



DSP Amps Training Videos

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SA-3 DSP Owner’s Manual

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SA-3 DSP Quick Start Guide

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Wisdom Electronics – Current Draw & BTU Info

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SA-3 DSP Firmware – Serial # 118100 and Lower

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SA-3 DSP Firmware – Serial # 118102 and Higher

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