




A Four-Channel, Full-Range Amplifier with On-Board Electronic Crossover and Variable Bass Boost
The RCA low-level inputs on the 475a allow for connection to both a preamp level signal and direct connection to a high-level factory head unit.
The 475a comes outfitted with a variable 12dB per octave electronic crossover, allowing you to optimize system tuning based on speaker location and the accompanying loudspeaker components.
A variable bass boost circuit is provided to optimize the low frequency 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 Reference 475a's high-output PWM MOSFET power supply ensures optimum power delivery into numerous impedances with low distortion.