TS-P440
ITC TS-P440 Audio Matrix Processor, 4 Input and 4 Output Digital Audio Matrix Processor, built-in feedback suppression, echo cancellation, noise cancellation, Preamplifier, signal generator, extender, compressor, 5-band parametric equalizer, AM auto mixing function, AFC adaptive feedback cancellation, 31-band parametric equalizer, delayer, frequency divider, high-low-pass filter, limiter, Frequency response: 20Hz-20KHz, THD + noise: <0.002% @1KHz, 4dBu, Input impedance (balanced): 20KΩ, AC110V-220V, 50Hz/60Hz.