QSC CMX300V 2-Ch Low Imp./ 70V Contractor Power Amplifier Flex-Use loading options allow you to drive low-impedance loads down to 2 ohms Flex-Use Output connectivity choices include NL4 Speakon&#8482; and detachable terminal block Flex-Use Input connectivity choices including actively balanced barrier strip, XLR, or 1/4&quot; TRS Rack mountable with chassis less than 16&quot; or 40.6 mm deep 1 dB recessed, detented gain controls for fast, accurate and repeatable settings