24 Input 
Silencer mic preamp XLR inputs 
6 Auxes per channel 
4 Sub groups 
Dual DSP effects engines
Dual USB port
Output processing: feedback ferret
28-Band GEQ/ 5-Band PEQ
Delay & Limiter
Output section: stereo, dual mono / subwoofer mode
Built in crossover - Double the processing power of the original FX mixers