Luxman M-4000A

Data

General

• Manufacturer: Luxman
• Model: M-4000A
• Model range: Prestige Series
• Type: Stereo power amplifier (2x completely built in mono)
• Years of manufacture: 1979 - 1981
• Manufactured in: Japan
• Color: Silver, Wood
• Remote control: -
• Power consumption: 520 W
• Dimensions (WxHxD): 495 mm x 175mm x 380mm
• Weight: 30 kg
• Original price approx.: 398'000 Yen (Japan, 1980), 1595 US-$, 5'500 DM

Connections

• Number of inputs:
  • Direct in: 600mV, 50 kOhm
• Number of outputs:
  • Speaker XLR connector

Technical Data

• Continuous power (at THD)
  • 8 Ohm: 2 x 180W (20 Hz ... 20 kHz, 0.008% THD)
  • 4 Ohm: 2 x 250W DIN
• Dynamic power
  • 8 Ohm:
  • 4 Ohm:
• Total harmonic distortion: < 0.005%.
• Attenuation factor: 100 at 8 Ohm
• Frequency response: 3 - 100'000 Hz
• Signal to noise ratio: >116 dB
• Stereo channel separation: >100 dB
• Noise voltage: >115 dB
• Frequency response: 10-100,000 Hz +0/-0.5 dB
• Subsonic Filter: yes

Special Features

• Separate level control L / R
• Stand-by display
• LED display separately L / R, -24 - +3 dB for peak level
• Large VU meter
• Peak LED on/off button
• VU meter switching -20dB
• Subsonic slide switch on rear panel

Remarks

• Compared to the Luxman M-4000, the M-4000A features the following changes:
  • MOS-FETs, Lux's Duo-Beta scheme, XLR connectors for the speakers, an improved signal-to-noise ratio of 2dB, Duo-Beta logo and 2 kilos more weight. In addition, the VU meters have been revised (narrower and clearer).

• Other models in the same series:
  • Luxman M-1600
  • Luxman M-2000
  • Luxman M-4000
  • Luxman M-4000A
  • Luxman M-6000

• [[Luxman C-5000A Corresponding Preamplifier
  • Luxman C-5000A

• Corresponding tuner: Luxman T-110
  • Luxman T-110

Pictures

• Luxman M-4000A front

• Luxman M-4000 interior view

• Luxman M-4000A rear view

Reports

• External link: M-4000A "Liquid Audio" restoration report: [1]

Links

• External Link: "Hifi Archive" website: [2]

• External Link: "The Vintage Knob" website: [3]

• External link: "Hifido, Japan" website: [4]

• External link: "Audio Database" website: [5]

• External link: "Audio Heritage, Japan" website: [6]