The 882i unit features dual-mono operation with balanced XLR inputs and outputs. It is designed for applications requiring low noise, high headroom and +4dBu input levels. Applications include: professional recording studios; pro and semi-pro sound reinforcement; multitrack studios; cassette copies; nightclub sound systems; broadcast transmission. Features: +4dBu balanced line (1/4" tip-ring-sleeve and XLR inputs and outputs) +23dBu headroom Active balanced outputs Hardwire bypass Bypass switch for comparison of processed to unprocessed signal Specifications: Process Mode: Program controlled Bypass Mode: 10Hz to 50kHz, +/- 0.5dBu, 0dBu input Signal to Noise Rati 115dB Process IN THD, Process mode: less than 0.025% 20-20kHz Bypass mode: less than 0.002% 20-20kHz Maximum Output: +23dBu (may vary due to control settings) Input Impedance: 14.7K Ohms, balanced 1/4" stereo phone jack or XLR jack. Pin #2 is the hot or "+" signal. Output Impedance: 600 Ohms, balanced 1/4" stereo phone jack or XLR jack. Pin #2 is the hot or "+" signal. Sensitivity: -45dBu for maximum process Maximum Process: +12dBu boost at 5kHz, 0dBu input Lo Contour: +12dBu adjustment at 50Hz, 0dBu input