500W Professional B&O ICEpower Amplifier with ICEpower Supply.  Incredibly small, light, efficient, and powerful.  Used, but tested as operational with music and tone.500W Class D amplifier module supplied with connectors and pigtail leads as per photos.  This module contains the AC power supply, which powers the on-board 500W Class D amplifier, and can also power two external ICEpower 500A Amplifier modules.  See my other ads for these ICEpower 500A modules as well.Note Warning from Specifications: The balanced speaker outputs are both “hot” with a common mode DC level equal to Vp/2.  Balanced probes should always be used for monitoring and measurements.  Shorting one of the terminals to ground results in an overcurrent situation.  Even a brief short circuit (phase to phase or phase to GND) will damage the device beyond repair.