Specifications Channels 2.2 Power Output Total: 2,560 W at 4 ohms Front: 2 x 640 W at 4 ohms Subwoofer: 2 x 640 W at 4 ohms Speaker Grille Diameter Front: 8" (20.3 cm) Subwoofer: 15" (38.1 cm) Frequency Response 22 Hz to 20 KHz Signal to Noise Ratio 65 dB Channel Separation 60 dB Bluetooth Yes FM Radio Signal / Noise ratio: 55 dB Usable Sensitivity: 10 dB Total Harmonic Distortion: 1 % CD Support Size: 12 cm (Compact Disc) Reading Speed: 4.8 to 5.6 m/sec. Maximum Play Time: 74 minutes Input 1 x RCA Stereo 2 x USB Ports 1 x 1/8" (3.5 mm) Auxiliary 4 x Speaker Terminals (Front and Subwoofer) Input Sensitivity 800 mV (AUX) Display Readout VFD / 3D 1C-FLT (Dot) Design Slot-in Power Requirements 110 to 120 V AC 50/60 Hz Power Consumption Standby: <0.45 W Operating: 80 W Operating Range Temperature: 41 to 95° F (5 to 35°C) Humidity: 10 to 75% Dimensions (WxHxD) Main Unit: 23.1 x 9.4 x 15.3" (58.7 x 23.9 x 38.9 cm) Speaker / Subwoofer: 23.1 x 34.7 x 22.7" (58.7 x 88.1 x 57.7 cm) Weight Main Unit: 17.6 lb (8 kg) Speaker / Subwoofer: 154.3 lb (70 kg) Sonic Boom!