Channels
2 channel, 3 channel, 4 channel THD (below 10% rated power, 1kHz)
Crosstalk (1kHz, below 10% rated power)
Freq. Response (ref 1kHz)
input resistance (20Hz-.20kHz, balanced)
20k ohm/ balanced, 10k ohm/ unbalanced Damping(at100HZ /1KHZ 8 ohm)
Protection
amplitude limiting, Overheat protect, short circuit protect