This versatile 2u 19 inch device has many applications. The front panel has input XLRs with peak and signal present indicators for each channel, 10 isolated outputs, line level attenuation from -6dB to +6dB in steps of 3dB, pin 1 input lift and individual channel output attenuators set at -40dB (mic’ level) and 0db (line level). On the bottom right there are positive, negative and zero volt power supply rail indicators.