Serial No:2195938 Unchecked Details 8ch processor with built-in 6ch amplifier Input: High level 6ch AUX (RCA) 2ch S/PDIF(TOSLINK)×1 Bluetooth×1 Pre-out: 2ch (maximum 4V output) Rated output: 55W x 6 (4Ω) 70W x 6 (2Ω) 150W x 3 (4Ω bridge) Frequency characteristics: 15Hz - 22kHz (-3dB) S / N ratio: 95dB Input sensitivity: 1.5V to 4.5V (LOW) 3.5V to 11V (HIGH) Input impedance: 2Ω (MIN) Main unit, remote controller, Bluetooth audio receiver only ※ operation no check [Condition] small scratch dirt Period is quite short use 1 month warranty for peace of mind