Onkyo A-9555 Integrated Digital Stereo Amplifier (Black) (Discontinued by Manufacturer) Exclusive Vector Linear (VL) Digital technology /Optimum Gain Volume Circuitry / Pure Stream Power Supply / All discrete output stage circuitry / Low-impedance, thick bus plate Audiophile-grade capacitor / Precision motor-driven volume control / Tone control (Bass, Treble, Loudness On/Off) / Pure direct mode / Discrete phono equalizer circuitry 6 audio inputs and 2 outputs / Phono input / High-rigidity, anti-resonant chassis / Aluminum volume and selector knobs / Speaker A/B posts / Banana plug-compatible speaker posts / Headphone jack / Heavy-duty power cord (inlet type) / Compatible with Remote Interactive Dock for the iPod / RI (Remote Interactive) remote control AMPLIFIER SECTION - Power Output 85 W/Ch (8 ohms, 0.5 %, FTC) / Dynamic Power 230 W + 230 W (3 ohms, Front) 200 W + 200 W (4 ohms, Front) / 120 W + 120 W (8 ohms, Front) Total Harmonic Distortion 0.08 % / Damping Factor 25 (Front, 1 kHz, 8 ohms) / Input Sensitivity and Impedance - Phono MM 2.5 mV/50 k-ohms / CD 200 mV/50 k-ohms