Onkyo Power Amplifier Integra M-508, (1986), 200 Watts RMS a 8 ohms, 240 Watts RMS a 6 ohms, 290 Watts RMS a 4 ohms.

Onkyo Power Amplifier Integra M-508, (1986), 200 Watts RMS a 8 ohms, 240 Watts RMS a 6 ohms, 290 Watts RMS a 4 ohms.