Microphone pre amp signal processor equalizer tube 48v phantom power phasereverse 19 1u design 19 inch size processor type parametric eq number of channels 2 rack height 1 ru analogue inputs 2 x trs jack 2 x xlr analogue outputs 2 x xlr 2 x 14 functions phantom power supply signal led phase reversal switch high pass filter hpf instrument input hiz