Rolls PA71 MicroMix Power Amplifier, 1 XLR and 2 RCA Inputs A desktop power amplifier for powering small speakers in small environments Stereo input and mono output of 5 watts into 8 Ohms XLR microphone input with switchable 12v phantom power Pair of RCA coaxial inputs for connecting a cassette or CD player 12VDC Phantom power