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).





Pictures

  • Luxman M-4000A front

Luxman M-4000A-6.jpg


  • Luxman M-4000 interior view

Luxman M-4000A-8.jpg


  • Luxman M-4000A rear view

Luxman M-4000A-10.jpg


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]