Check the listing for details. ADCOM GFR-700 A/V Receiver. Color: Silver. Listed at 550.00 USD. Input Impedance : 47kilohms Output Impedance (Main-RCA) : Less than 600 Ohms Rated Input : 1.0 Volt rms Maximum Input (@ 4Vrms Input Sens.) : 4.1 Volts rms Rated Output (100k load) : 2.0Vrms Minimum Load : 5 kilohms Maximum Output : 8Vrms Volume & Trim Range (relative to 0 dB Trim) ? Main : -80dB to +18dB (0.5dB res) ? Main Trim : -10dB to +10dB (1.0dB res) ? Main Input Sens./Input : 1V/2V/4V ? Room 2 : -65dB to +0dB (1.0dB res) ? Room 2 Trim : -8dB to +8dB (1.0dB res) ? Room 2 Gain/Input : +0dB to +6dB (2.0 dB res) Channel Separation (at 1kHz) : (>65dB) Frequency Response ? Analog DSP Input : 20Hz to 20kHz +0/-0.2dB ? Analog Ext7.1 Input : 20Hz to 100kHz +0/-0.2dB THD+N (@ Rated Input & Output) ? Analog DSP Input : 0.007% (20kHz Low Pass) ? Analog Ext7.1 Input : 0.006% (80kHz Low Pass) S/N Ratio (ref. 2.0Vrms A-weighted) ? Analog - DSP Input : 93dB ? Analog - Ext 7.1 Input : 100dB Preamplifier Digital Section