JL AUDIO XDM700/5JL AUDIO 5 Channel Class D Car Marine System Amplifier, 75 W x 4 @ 4 + 300 W x 1 @ 2 14. 4V The XDM700 5 is ideal for a complete audiophile grade, subwoofer + four satellite system, and fits comfortably in just about any vehicle or vessel. With this incredible little amplifier, you can drive two pairs of quality component speaker systems with plenty of clean power (75 W x 4 @ 4 ), while also generating a solid 300 W of power for a subwoofer system.