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Accuphase P-4500 Power Amplifier

POA

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Free Delivery in NZ
for orders over $100 or $5 under $100.

Product Description

Since it started from P-300 in 1973, during the past half century, the history of Accuphase Power Amplifiers is continually evolving with a wide range of variations as Monophonic, Class-A and Class-AB. The P-4500 is the succession model of P-4200 launched in 2013. This new model is a direct descendant of the first P-300, not only acting as a strong introduction but realizing the great electrical performance and sound quality coming close to the flagship A-250. The P-4500 features best-in-class low noise and high damping factor performance, and with the enhanced power output stage, it enables to perfectly drive the modern high-end loud speakers.

 

Features


  • Power amplification stage with 4-parallel complementary push-pull configuration
  • Linear output characteristics (90 W / 8 ohms, 180 W / 4 ohms, 360 W / 2 ohms)
  • 500 W output into ultra-low impedance load of 1 ohm (music signals)
  • Instrumentation amplifier principle
  • Current feedback topology
  • Balanced Remote Sensing
  • High damping factor of 700
  • Speaker output protection with short-circuit detection

 

 

Specifications

  • Continuous Average Output Power (20–20,000 Hz): Stereo operation (both channels driven) - 500 watts per channel into 1 ohm, 360 watts per channel into 2 ohms, 180 watts per channel into 4 ohms, 90 watts per channel into 8 ohms. Monophonic operation (bridged connection) - 1000 watts into 2 ohms, 720 watts into 4 ohms, 360 watts into 8 ohms. 
  • Total Harmonic Distortion: Stereo operation (both channels driven) - 0.05% with 2 ohm load, 0.02% with 4 to 16 ohm load. Monophonic operation (bridged connection) - 0.05% with 4 to 16 ohm load
  • Intermodulation Distortion: 0.01%
  • Frequency Response: At rated output: 20 – 20,000 Hz +0, -0.2 dB. At 1 watt output: 0.5 – 160,000 Hz +0, -3.0 dB
  • Gain: 28.0 dB (with GAIN selector at MAX) (Stereo and monophonic operation)
  • Gain Selection: MAX, -3 dB, -6 dB, -12 dB
  • Output Load impedance: Stereo operation - 2 to 16 ohms. Monophonic operation: 4 to 16 ohms
  • Damping Factor: 700
  • Input Sensitivity (with 8-ohm load, GAIN selector in MAX position): Stereo operation - 1.07 V for rated continuous average output. 0.11 V for 1 watt output. Monophonic operation - 2.14 V for rated continuous average output. 0.11 V for 1 watt output
  • Input Impedance: Balanced - 40 kilohms. Line - 20 kilohms
  • Signal-to-Noise Ratio (A-weighted, input shorted): 121 dB (GAIN selector at MAX), 126 dB (GAIN selector at -12 dB) At rated continuous average output
  • Output Level Meters: -∞ dB to +3 dB (indication in dB and %) Logarithmic scale, with defeat switch, hold time switchable 3 s / ∞
  • Power Requirements: AC 120 V/230 V, 50/60 Hz (Voltage as indicated on rear panel)
  • Power Consumption: 62 watts idle. 485 watts in accordance with IEC 60065
  • Maximum Dimensions: Width 465 mm, Height 190 mm, Depth 427 mm
  • Mass: 29.2 kg net, 35.0 kg in shipping carton