... -USBpMX-806D 8 channels with amplifierFront viewBack viewPMX806-USB: 8channels amplifier+usb FRONT VIEW back view PMX808D-USB: 8 channels ... and gain switch, 3-band EQ. 4, the master stereo 7-band graphic line 5,10 bit high precision level display ... recording input and output, and listen to the headphone output. 7,1 group master (line) output and mono output. 8, digital ...