Palmer PAN 08, active DI-Box, Line-Isolation-Box or amplifier, unbalanced and balanced inputs, balanced outputs with 2 XLR connectors per channel (front and rear), 20 dB Pad for microphone inputs, 3 steps switchable input power up to +18dB, output power +12 dBu on 600 Ohms, works with powersupply or with accu, 19" 1U, 5 years warranty