feedback eliminator (2x 12 filters), assignable output names, zone controller function via RJ-45 connection, RTA display always accessible on front panel and software, 2 virtual inserts with various effects (e.g. subharmonic synthesizer), RS232 connection with driver software for remote for all functions, freely configurable input and output routing, delay line (up to 2.7sec), update option, 110dB dynamic range.