Great River MP-500NV

Channel Strip
Balanced XLR inputs and outputs
High-impedance 6,3 mm jack guitar input on the front (automatically disconnects the XLR microphone input)
Adjustable pre-amplification in 5 dB steps up to 60 dB
Output: -25 dB to +10 dB
High-Current 70ma Class A BIAS at the output
Input / output display
Adjustable input impedance: 1200 and 300 ohms
Output: 600 Ohm
Construction: API Series 500 format
Requires two 500 slots