Orion XTR2500.2 XTR Series 2,500 Watts RMS 2-Channel Bridgeable Xtreme Amp Class AB Stereo High Performance Car Amplifier Free Alphasonik Earbuds RMS power rating: 4 ohms: 600 watts x 2 chan. / 2 ohms: 1000 watts x 2 chan. / bridged: 4 ohms: 2000 watts x 1 chan. Max power output: 4000 watts Pulse width modulated MOSFET power supply LED power (green) and Protect (Red) indicators Soft start turn-on/turn-off