In this paper we introduce a 64 channel audio processing unit made in our department. The audio processor uses a 16 bit control unit (Infineon XC 167) with ethernet interface running a realtime operating system and two Analog Devices ADSP-TS101S high performance tigerSHARC DSPs for audio stream processing. The first project implemented on this equipment is a 64 channel in, 32 channel out audio mixer with a sampling frequency of 48 kHz (leaving another 32 channels for effect feedback loops) or 96 kHz, alternatively. The audio processor is fully remote controllable via TCP/IP.