Luxman Laboratory Reference Series 5L-15

Data

General

  • Manufacturer: Luxman
  • Model: Laboratory Reference 5L-15
  • Type: DC Stereo Integrated Amplifier
  • Years of manufacture: 1977 - 1982
  • Made in: Japan
  • Color: Silver
  • Power consumption: 380 W
  • Dimensions (WxHxD): 442 x 146 x 400 mm
  • Weight: 13.3 kg
  • Original price approx.: 168'000 Yen (Japan, 1977), 995 US-$, 2'400 DM


Connections

  • Number of inputs:
    • Phono MM 1: 2.7 mV (subsonic switchable).
    • Tuner: 300 mV
    • Aux 1,2: 300 mV
    • Tape 1: 300 mV
    • Tape 1 DIN:
    • Tape 2: 300 mV
    • Main In: 300 mV
  • Number of Outputs:
    • Pre Out: 300 mV
    • Tape 1 Rec Out: 300mV
    • Tape 1 DIN:
    • Tape 2 Rec Out: 300mV
    • 2 x Loudspeaker
    • 1 x headphone jack


Technical Data

  • Continuous power (at THD)
    • 8 Ohm: 2 x 80W (10 Hz - 20 kHz, 0.02% THD)
    • 4 Ohm: 2 x 120W DIN
  • Dynamic power
    • 8 Ohm:
    • 4 Ohm:
  • Total harmonic distortion: < 0.02%
  • Attenuation factor: 80 at 8 Ohm
  • Frequency response:
    • Phono: 20 Hz - 20'000 Hz, ±0.2dB
    • Tuner, AUX: 5 Hz - 200'000 Hz, 0.5dB
  • Distortion factor: <0.02%
  • Signal-to-noise ratio:
    • Phono: 80dB
    • Tuner, AUX 1 & 2: 100dB
    • Tape 1 & 2: 100dB
  • Volume attenuator: adjustable from -40 dB to - 15 dB
  • Loudness: no
  • High Filter: no
  • Low Filter (Subsonic): no


Special Features

  • Real Time Processed DC Stereo Amplifier
  • Function indicator lamp: "White" = Normal operation, "Red" = DC Offset
  • Mono - Stereo - Reverse - Switch
  • Volume attenuator switchable: Preset (adjustable from -40 dB to - 15 dB), Off, Signal Off
  • VU meter separately for left and right channel
  • Sensitivity selector switch for VU meter: 0 dB, - 10 dB
  • Switch on rear panel for loudspeakers: "Direct Coupling - General Speaker", "Input Capacitor - Elektrostatic Speakers
  • Separable pre- and power amplifier
  • Output for peak LED display


Remarks

  • The Luxman Laboratory Reference series made its debut in 1976.
  • Highlights included the first Real Time Processed DC amplifier and the first synthesizer tuner.
  • Other components of the Laboratory Reference Series included the 5C-50 preamplifier and 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, and a less expensive tuner, the 5T-10, and the 5K-50 cassette tape deck, the latter of which was probably obtained from a third-party manufacturer.
  • The functionality, performance and innovative design made the series unique and distinctive.
  • Special features were:
    • 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 5L-15 Front

Luxman 5L-15-1.jpg

  • Luxman Laboratory Reference Series 5L-15 interior view

Luxman 5L-15-4.jpg

  • Luxman Laboratory Reference Series 5L-15 rear view

Luxman 5L-15-3.jpg

  • Luxman Laboratory Reference Series brochure image

Luxman Laboratory Reference Series-1.jpg


Reports

Links

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