JL Audio XD500/3 v2 XD Series 3 Channel Class D Car Amp Amplifier 500w RMSXD500 3v2 3 Channel Class D System Amplifier, 75 W x 2 @ 4 + 300 W x 1 @ 2 14. 4V This compact amplifier is ideal for a simple audiophile grade, subwoofer satellite system. With the XD500 3v2, you can drive a pair of quality component speaker systems with plenty of clean power, while also delivering a stout 300 W to your subwoofer system. The breakthrough that makes this much power possible in such a small chassis is our NexD switching design. The