... faninput ground-lift switch on back panelLEDs for Mode, Signal, Clip, Output Current and faults for example like DC3-pin XLR, male ... female per channel, pin2 =in phaseOne 4-pole SPEAKON connector for each output channel (bi-amping possible)STEREO, BRIDGE NONO and ... PARALLEL-MONOExtended User Interface /E.U.I.-modules for any kind of EQ>107 dB (unweighted)>110 dB ...