Pioneers GM-A5702 2-channel amplifier will greatly improve the sound quality in your vehicle. This punchy Pioneer amplifier will power a pair of speakers with up to 240 watts RMS each, which is a gigantic jump over the power supplied by your car radio alone. You will hear a lot more of the little details in your music, especially when you turn your system up to overcome road noise. You can also put this versatile amplifier into single-channel mode, switch on the low-pass filter for clarity, and run a subwoofer with up to 480 watts RMS, perfect for some rocking bass. Speaker-level inputs allow you to add the GM-A5702 to a factory radio that does not have preamp outputs.