Variance of Input Level：±18dB; Tolerance of Output level: ± 0.5dB.
Output Level:0~2 Vp-p (1 Vp-p Preset in Factory), 1 KHz.
Automatic Audio Equalization without Tuning.
Gain Compressor from Peak to 0dB/0V: 8 Seconds.
Audio Connection Possibility: 6 Stereo Channels or 12 Mono Channels.
Professional Calibration Signal: 1KHz.