Sitting between your monitor controller/pre-amp and a pair of passive speakers, the high performance Class D amplifier delivers 25 W RMS per channel into 8 ohms (50 W RMS per channel into 4 ohms) and offers features including thermal, overload and power up/power down protection and fault indication. With just a 6.5 square inch footprint, the CPA-50 blends seamlessly with a pair of Yamaha NS10 or Auratone C5 monitor types, for example, and is small and light enough to fit into a bag to take anywhere.