Infinity 475A Car Amp

4-Channel Full-Range Amplifier with On-Board Electronic Crossover and Variable Bass Boost, The Reference 475a's high-output PWM MOSFET power supply ensures optimum power delivery into numerous impedances with low distortion. A variable bass boost circuit is provided to optimize the low fequency performance of your system. Full range preamp outputs are provided facilitating multiple amplifier hookups without the need for costly Y-adapters or signal splitters. The 475a comes outfitted with a variable 12dB per octave electronic crossover allowing you to optimize system tuning based on speaker location and accompanying loudspeaker components The RCA low-level inputs on the 475a have allow for connection to both a preamp level signal and direct connection to a high-level factory head unit.