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.

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 Channel Amplifier

Key Benefits

High Efficiency Design

Enormous Power Reserves




More Features

500-Watts Per Channel

Cardis Connectors


Rated power output per channel 500 w/ch continuous rms power @ 4Ω above power ratings
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 25 kΩ (balanced)
Polarity Non-inverting, Pin 2 positive
Signal to Noise ratio (main outputs) –103 dB (ref 1V rms, A-wtd.)
Output impedance Less than 0.05Ω from 20–20,000 Hz
Thermal load 7 BTU/minute or less
Mains voltage 100V, 120V, or 230/240V determined by the needs of country for which the unit was manufactured; cannot be reset by dealer or user
Power consumption
1870W (±5%) at full power, all channels driven
Power consumption
10W (±5%) at idle and 2W (±5%) in standby
Shipping weight 40 lbs. (19 kg)
Dimensions HxWxD 3.75” x 17” x 13.63” (8.57cm x 43.2cm x 34.7cm)