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Accuphase P-4600 Stereo Power Amplifier

Accuphase P-4600 Stereo Power Amplifier

Accuphase P-4600


Since Accuphase started with the P-300 in 1973, the 50 year history of Accuphase Power Amplifiers has continued to evolve, with a wide range of variations such as Monophonic, Class-A and Class-AB. The Accuphase P-4600 is the successor to the P-4500 launched in 2018. This new model is a direct descendant of the first P-300. The P-4600 is a mighty entry level power amplifier that also gets very close to the audio performance of our flagship A-80.

The P-4600 power amplifier was created by carefully implementing a series of state-of-the-art circuitry and the highest quality materials

The P-4600 is a Class AB stereo power amplifier that incorporates as much technology as possible from high end models while also providing powerful drive capabilities. The power amplification stage uses a 6-parallel push-pull power transistor output stage, achieving a high power rating of 150W/8Ω and 300W/4Ω which is much higher than the previous model. Achieving an S/N ratio of 125dB and a damping factor of 800, it drives large speakers with ease and produces deep sound.


  • Rated output: 150W/8Ω, 300W/4Ω, 450W/2Ω, which exceeds the class.
  • Power transistor “6 parallel push-pull output stage”
  • “Instrumentation amplifier” adopted
  • Equipped with “MCS+ circuit” and “current feedback amplification circuit” in the amplifier section
  • Adopts “balanced remote sensing” and “3-stage Darlington connection”
  • Large capacity 50,000μF filter capacitor
  • Achieves a high damping factor of 800
  • 4-stage gain control function
  • Balanced input terminal polarity switching function
  • Switching function to bi-amp connection or bridge connection
  • Speaker output protection circuit to prevent short-circuit accidents
  • Highly sensitive large power meter with indicators up to -50dB
  • Aluminum hairline finish top plate
  • “High carbon cast iron” insulator with excellent vibration damping properties
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