Specification: Frequency response: 10Hz - 40kHz (0, -1dB) Distortion: 0.01% per 0dBu Mic Input Noise Equivalent: -118dBu CMRR: 70dB Mono Input Gain (20Hz-20kHz): Mic: 0 - 48dB Line: -35 - +15dB Crosstalk (20Hz-20kHz): -8 -79dBu Output level: 0dBu output level: +17dBu voltage gain: Mono channel MIC INPUT MAIN OUT (3.5mm stereo jack): 69dBu Mono channel MIC INPUT Monitor (3.5mm stereo jack): 78dBu Mono channel MIC INPUT TAPE OUT (RCA): 69dBu Mono channel LINE INPUT MAIN OUT (3.5mm stereo jack): 53dBu Stereo channel LINE INPUT MAIN OUT (3.5mm stereo jack): 16dBu TAPE INPUT MAIN OUT (3.5mm stereo jack): 6dBu TAPE INPUT Monitor (3.5mm stereo jack): 9dBu Noise: Main mix at -8, channel level at -8: -120dBu Main mix at 0dB, channel level at -8: -120dBu Main mix at 0dB, channel level at 0dB: -120dBu equalizer: Mono: Low: +/-15dB at 80Hz Treble: +/-15dB at 12kHz Stereo: Low: +/-15dB at 80Hz Treble: +/-15dB at 12kHz Impedance: Mic input: 2.6k ohms Line Input: 10k Ohms Tape Input: 10k Ohms Main Outputs: 120 Ohms Headphone Output: 120 Ohms Tape Output: 1K Ohms USB section: Version 2.0 interface 16-bit/44.1kHz ADCs and DACs Operating systems: Win2000, XP or higher; macOS 9.0.4 or higher Phantom Power: (Mic Pin2/Pin3 and Pin1) +20V Power: Adapter: DC5V, 500mA USB: DC5V, 500mA Power consumption: 2.5W Dimensions: 98 x 136 x 34mm Weight: 0.48kg Warranty 2 years