Accuphase P-4200

500W/1Ω STEREO POWER AMPLIFIER The Stereo Power Amplifier P-4200 incorporates the outstanding design technology of the A-200. Based on the P-4100, it represents a full model change with further enhanced overall circuitry. The power amplifier section features another Accuphase specialty, namely the MCS+ topology in combination with current feedback, ensuring outstanding S/N ratio and superior electrical performance characteristics.

Thông số kỹ thuật

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)

1,000 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)

(in stereo and monophonic operation)

● Gain Selection 　 MAX, － 3dB, － 6dB, － 12dB

● Output Load impedance Stereo operation: 2 to 16 ohms

Monophonic operation: 4 to 16 ohms

● Damping Factor 500 (stereo operation)

● Input Sensitivity (with 8-ohm load, GAIN selector in MAX position)

Stereo operation: 1.07 V for rated output

0.11 V for 1 watt output

Monophonic operation: 2.14 V for rated output

0.11 V for 1 watt output

● Input Impedance Line: 20 kilohms, Balanced: 40 kilohms

● Signal-to-Noise Ratio (A-weighted, input shorted)

120 dB (GAIN selector at MAX)

125 dB (GAIN selector at － 12 dB)

At rated 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/220 V/230 V, 50/60 Hz (Voltage as indicated on rear panel)

● Power Consumption 76 watts idle

560 watts in accordance with IEC 60065

● Maximum Dimensions Width 465 mm (18-5/16")

Height 190 mm (7-1/2")

Depth 427 mm (16-13/16")

● Mass 28.9 kg (63.7 lbs) net

35.0 kg (77.2 lbs) in shipping carton