Counterpoint SA-220 (220W/Ch)

Fully tested and Cleaned

Specifications: 

Continuous Power Output: Stereo, 220 watts per channel into 8 ohms, 420 watts into 4 ohms, 640 watts into 2 ohms, 730 watts into 1 ohm; bridged mono, 600 watts into 8 ohms, 700 watts into 4 ohms.

Peak Power Output Per Channel: Stereo, 310 watts per channel into 8 ohms, 590 watts into 4 ohms, 900 watts into 2 ohms, 1,000 watts into 1 ohm; bridged mono, 840 watts into 8 ohms, 980 watts into 4 ohms.

Peak Output Current: 50 amperes into 0.1 ohm, for 1-kHz signal switched on for 20 mS and off for 480 mS. Voltage Gain: Stereo, 29 dB; bridged mono, 35 dB.

Frequency Response: 0.2 Hz to 200 kHz into 8 ohms, 0.2 Hz to 32 kHz into 8 ohms plus 8µF.

Rise-Time: 0.6 µS into 8 ohms, 5.0 uS into 8 ohms plus 8 uF.

THD Into 8-Ohm Load: Stereo, 0.5% at 200 watts out, 0.1% at 10 watts, 0.05% at 1 watt; bridged mono, 0.5% at 200 watts, 0.10% at 10 watts, 0.08% at 1 watt.

S/N Ratio: 84 dB below 1 watt out, measured from 400 Hz to 80 kHz, with 8-ohm load.

Input Impedance: 100 kilohms plus 100 pF.

Output Impedance: 0.12 ohm, typical.

Damping Factor: 60, re: 8 ohms.

Signal Polarity: Noninverting.