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
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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