... ,48kHz sampling rate, AD / DA convertor,32 bits DSP chip. Input processing includes Gain, Mute, Noise gate, high-cut, low-cut ... ,Gain, Mute, compressor/Limiter, Phase, Delay and so on Every input and output can do matrix assign flexibly Adjustable PEQ frequency ... control by USB and RS232 connector 256 units linkable by RS485, and do remote link controlling by center-control equipment ModelPRO ...