Pre phono M/M M/C S/N Ratio (A Weighting) 82.8 dB <64 dB Input Impedance 45~56K Ω 80~120 Ω Output Impedance 110 Ω 110 Ω Channel Balance <0.23 dB <0.21 dB Distortion (5mV input) <0.02% <0.08% Gain (1 KHz) 55 dB 58~62 dB RIAA Accuracy ± 1 dB ± 1 dB Max Input 17.55 mV >7 mV Max Output 8.7 V >8.52 V