Accuphase P-4600 Power Amplifier

Name: Accuphase P-4600 Power Amplifier
Brand: Accuphase
Availability: OutOfStock

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Envelops you in pure music listening

The Accuphase P-4600 Power Amplifier is a high-end stereo power amplifier designed for the most discerning listener. It boasts a robust build quality, cutting-edge technology, and exceptional sonic performance, and is a true centerpiece for any high-fidelity sound system.

The P-4600 delivers a robust 150 watts per channel into 8 ohms, doubling to 300 watts into 4 ohms. This ample power ensures it can drive demanding speakers with ease, faithfully reproducing even the most dynamic musical passages.

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Specifications

Continuous Average Output Power: Stereo operation - 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 - 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: 800 or greater

Input Sensitivity: Stereo operation - 1.38 V for rated continuous average output. 0.11 V for 1 watt output. Monophonic operation - 2.76 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): 125 dB (GAIN selector at MAX), 130 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: 94 watts idle. 485 watts in accordance with IEC 60065

Maximum Dimensions: Width 465 mm, Height 190 mm, Depth 427 mm

Mass: 30 kg net, 36.0 kg in shipping carton

Groundbreaking technology

The Accuphase P4600 power amplifier utilises a sophisticated Class AB design that combines the best of both Class A and Class B amplification for a perfect balance of power, efficiency, and sound quality.

Accuphase employs top-of-the-line components throughout the P-4600, including custom-wound transformers, high-grade capacitors, and meticulously selected transistors. This attention to detail results in exceptional audio clarity and accuracy.

Power amplification section with linear output characteristics

The power amplification stage of the P-4500 features bipolar power transistors mounted directly to large heat sinks for highly efficient thermal dissipation. The devices are configured as a triple Darlington 4-parallel complementary push-pull circuit that is capable of doubling the rated output when the impedance is halved. In other words, it achieves a fully linear power progression of 90 watts into 8 ohms, 180 watts into 4 ohms, and 360 watts into 2 ohms. It can even supply loads as low as 1 ohm with 500 watts of power (music signals). The impressive damping factor of 700 means that the amplifier has ample leeway to drive any kind of loudspeaker.