Luxman Laboratory Reference Series 5K-50

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Data

General

  • Manufacturer: Luxman
  • Model: Laboratory Reference 5K-50
  • Type: Cassette / Tape Deck
  • Years of manufacture: 1978 - 1980
  • Made in: Japan
  • Color: Silver
  • Power consumption: 75 W
  • Dimensions (WxHxD): 442 x 146 x 389 mm
  • Weight: 12.5 kg
  • Original price approx.: 280'000 Yen (Japan, 1979), 1995 US-$ (USA 1981), 3'950 DM


Connections

  • Number of inputs:
    • Line: 100mV at 50 kOhm

DIN: 2mV at 1 kOhm

    • Mik: 0,25mV at 600 Ohm...10 kOhm
  • Number of outputs:
    • Line: 580mV
    • Headphone: 1mV / 8 Ohm


Technical Data

  • Audio heads: 3
    • 1x ferrite for recording
    • 1x Sendust for playback

1x ferrite for erasing

  • Motors: 3
    • 1 x double capstan drive Quartz-Lock for tape drive
    • 2 x coreless for coils
  • Synchronisation fluctuations: < 0.03%
  • Tape types: Normal, Chrome
  • Frequency response:
    • Normal: 30 Hz...16 kHz (± 3dB).
    • Chrome: 30 Hz...18 kHz (± 3dB)

Metal: 20 Hz...22 kHz (± 3dB) Distortion factor: < 1,2% (Normal; 1kHz; 0 dB)

  • Signalrauschabstand:
    • Normal Dolby off: >55dB
    • Normal Dolby on: > 65dB
    • Chrome Dolby off: > 58dB
    • Chrome Dolby on: > 67dB
  • Stereo separation: > 35dB (1 kHz; 0dB)
  • Crosstalk attenuation: > -60dB (1 kHz; 0dB)


Special Features

  • Adoption of the Luxman Realtime Processed amplifier layout for the tape recording and playback amplifiers.
  • Recording mute switch
  • Infinitely variable pre-magnetization
  • 3-step equalization selector switch
  • Adjustable azimuth and control display
  • Rear band control
  • Plasma peak level control instruments with peak hold function
  • Totalizer with zero setting and memory function
  • Dolby Filter
  • MPX Filter
  • Timer-controlled recording and playback
  • Test tone oscillator (400 Hz, 6 kHz)
  • Music search function: Review, CUE
  • Headphone jack
  • Output level control, separate L + R
  • Connector for wired remote control on the rear panel


Notes

  • The Luxman Laboratory Reference series made its debut in 1976.
  • Highlights were the first Real Time Processed DC amplifier and the first synthesizer tuner.
  • Other components of the Laboratory Reference Series included the 5M-21 power amplifier, the 5G-12 graphic equalizer, the 5F-70 parametric tone control, and the 5E-24 LED level meter unit.
  • In 1977 and 1978, the Luxman Laboratory Reference Series was expanded to include the 5L-15 integrated amplifier, the 5M-20 power amplifier without VU meter, as well as a less expensive tuner, the 5T-10, and the 5K-50 cassette tape deck. The 5K-50 was Luxman's very first tape and was probably purchased from a third party manufacturer (possibly Alpine).
  • The functionality, performance and innovative design made the series unique and distinctive.
  • Special features included:
    • World's first DC amplifier and synthesizer tuner.
    • Computer-controlled cassette deck

Stackable components (the 4 device feet had corresponding recesses with the device standing underneath)



Pictures

  • [[Luxman Laboratory Reference Series 5K-50 Front

Luxman 5K-50-1.jpg

  • Luxman Laboratory Reference Series 5K-50 Front Details Left

Luxman 5K-50-4.jpg

  • Luxman Laboratory Reference Series 5K-50 Front Details Right

Luxman 5K-50-3.jpg

  • Luxman Laboratory Reference Series 5K-50 interior view

Luxman 5K-50-7.jpg

  • Luxman Laboratory Reference Series 5K-50 drive

Luxman 5K-50-10.jpg

  • Luxman Laboratory Reference Series 5K-50 wired remote control AK-1

Luxman 5K-50-9.jpg


  • Luxman Laboratory Reference Series 5K-50 Tape Selection.
    • Luxman XM-I C-60 normal tape cassette: original price 900 Yen (Japan), approx. 12 DM

Luxman XM-I C-90 normal tape cassette: new price 1200 Yen (Japan), approx. 16 DM

    • Luxman XM-II C-60 chrome tape cassette: new price 1100 Yen (Japan), approx. 15 DM
    • Luxman XM-II C-90 chrome tape cassette: original price 1400 Yen (Japan), approx. 19 DM
    • Luxman XM-IV C-46 metal tape cartridge: original price 1450 Yen (Japan), approx. 20 DM

Luxman 5K-50-Tape-1.jpg


Reports

  • External report: website "Hifi Studio": [1]


Links

  • External link: "Hifi Archive" website: [2]
  • External Link: "The Vintage Knob" website: [3]
  • External link: Audio Heritage, Japan website: [4]
  • Luxman product overview: Luxman</1,2%>
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