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Infinity - Ref 475A

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.

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Rp. 2,198,000

Rp. 2,500,000 incl. tax

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General  
CEA Rated
Click here to learn about the new CEA2006 Amplifier Standard.
Power Output 75 watts RMS x 4 channel at 4 ohms and ≤ 1% THD + N 180 watts RMS x 2 channel at 4 ohms, 14.4V supply and ≤ 1% THD + N
Signal-to-Noise Ratio 85dBA (reference 1 watt into 4 ohms)
Dynamic Power 117 watts at 2 ohms
Effective Damping Factor 6.315 at 4 ohms
Frequency Response (-3dB) 10Hz to 100kHz (-3dB)
Maximum Input Signal 6V
Maximum Sensitivity 100mV


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 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 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.

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