Difference between revisions of "Luxman Laboratory Reference Series 5M-20"
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| − | == | + | __NOTOC__ |
| − | ''' | + | == Data == |
| − | * | + | '''General''' |
| − | * | + | * Manufacturer: [[Luxman]] |
| − | * | + | * Model: Laboratory Reference 5M-20 (identical to 5M-21, but without VU meter) |
| − | * | + | Type: DC Stereo power amplifier |
| − | * | + | * Years of manufacture: 1977 - 1982 |
| − | * | + | * Made in: Japan |
| − | + | * Color: Silver | |
| − | * | + | * Power consumption: 450 W |
| − | * | + | * Dimensions (WxHxD): 442 x 146 x 400mm |
| − | * | + | * Weight: 18.8 kg |
| + | * Original price approx.: 210'000 Yen (Japan, 1977), 1095 US-$, 2'950 DM | ||
| − | ''' | + | '''Connections''' |
| − | * | + | * Number of inputs: |
** Direct in: 890mV, 50 kOhm | ** Direct in: 890mV, 50 kOhm | ||
| − | * | + | * Number of outputs: |
| − | ** 2 x | + | ** 2 x loudspeaker |
| − | + | 1 x headphone jack | |
| − | ''' | + | '''Technical Data''' |
| − | * | + | * Continuous power (at THD) |
| − | ** 8 Ohm: 2 x 100W (10 Hz ... 20 kHz, 0 | + | ** 8 Ohm: 2 x 100W (10 Hz ... 20 kHz, 0.005% THD) |
** 4 Ohm: 2 x 150W DIN | ** 4 Ohm: 2 x 150W DIN | ||
| − | * | + | * Dynamic power |
** 8 Ohm: | ** 8 Ohm: | ||
** 4 Ohm: | ** 4 Ohm: | ||
| − | * | + | * Total harmonic distortion: < 0.005%. |
| − | * | + | * Attenuation factor: 80 at 8 Ohm |
| − | * | + | * Frequency response: 0 - 100'000 Hz (- 1 dB) |
| − | * | + | * Signal to noise ratio: >120 dB |
| − | * | + | * Crosstalk attenuation: - 70 dB (20 Hz ... 20 kHz) |
| − | * | + | * Noise voltage: |
| − | ''' | + | '''Special Features''' |
| − | * Real Time Processed DC Stereo | + | * Real Time Processed DC Stereo Power Amplifier |
| − | * | + | * Function indicator lamp: "White" = Normal operation, "Red" = DC Offset |
| − | * Separate | + | * Separate level controls L / R on rear panel |
| − | * | + | * Switch on rear panel for loudspeakers: "Direct Coupling - General Speaker", "Input Capacitor - Elektrostatic Speakers |
| − | * | + | * Output for peak LED display |
| − | == | + | == Remarks == |
| − | * | + | * The Luxman Laboratory Reference Series made its debut in 1976. |
| − | * Highlights | + | * 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. |
| − | * 1977 | + | * 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) | |
| − | * | + | * Other models in the same series: |
| − | ** [[Luxman Laboratory Reference Series 5C-50|5C-50 | + | ** [[Luxman Laboratory Reference Series 5C-50|5C-50 Preamplifier]] |
| − | ** [[Luxman Laboratory Reference Series 5M-21|5M-21 | + | ** [[Luxman Laboratory Reference Series 5M-21|5M-21 Power Amplifier]] |
** [[Luxman Laboratory Reference Series 5T-50|5T-50 Tuner]] | ** [[Luxman Laboratory Reference Series 5T-50|5T-50 Tuner]] | ||
| − | ** [[Luxman Laboratory Reference Series 5F-70|5F-70 | + | ** [[Luxman Laboratory Reference Series 5F-70|5F-70 Tone Control]] |
** [[Luxman Laboratory Reference Series 5G-12|5G-12 Equalizer]] | ** [[Luxman Laboratory Reference Series 5G-12|5G-12 Equalizer]] | ||
| − | ** [[Luxman Laboratory Reference Series 5E-24|5E-24 | + | ** [[Luxman Laboratory Reference Series 5E-24|5E-24 Level Meter]] |
| − | ** [[Luxman Laboratory Reference Series 5L-15|5L-15 | + | ** [[Luxman Laboratory Reference Series 5L-15|5L-15 Integrated Amplifier]] |
| − | ** [[Luxman Laboratory Reference Series 5M-20|5M-20 | + | ** [[Luxman Laboratory Reference Series 5M-20|5M-20 Power Amplifier]] |
** [[Luxman Laboratory Reference Series 5T-10|5T-10 Tuner]] | ** [[Luxman Laboratory Reference Series 5T-10|5T-10 Tuner]] | ||
| + | ** [[Luxman Laboratory Reference Series 5K-50|5K-50 Tape]] | ||
| − | == | + | == Pictures == |
| − | * Luxman Laboratory Reference | + | * [[Luxman Laboratory Reference Series 5M-20 Front |
| − | [[ | + | [[File:Luxman 5M-20-3.jpg]] |
| − | * Luxman Laboratory Reference Series | + | * Luxman Laboratory Reference Series description from Luxman USA |
| − | [[ | + | [[File:Luxman Laboratory USA Series-2.jpg]] |
| − | == | + | == Reports == |
| − | * | + | * External report: "Hifi Studio" website: [https://web.archive.org/web/20120513211921/http://www.hifi-studio.de/hifi-klassiker/luxman.htm] |
== Links == | == Links == | ||
| − | * | + | * External link: "The Vintage Knob" website: [http://www.thevintageknob.org/luxman-Laboratory_Reference_Series.html] |
| − | * | + | * External link: Audio Heritage, Japan website: [http://audio-heritage.jp/LUXMAN/amp/5m20.html] |
| − | Luxman | + | Luxman Product Overview: [[Luxman]] |
| + | |||
| + | |||
| + | [[Category:Power Amplifiers]] | ||
Latest revision as of 09:19, 30 January 2019
Data[edit]
General
- Manufacturer: Luxman
- Model: Laboratory Reference 5M-20 (identical to 5M-21, but without VU meter)
Type: DC Stereo power amplifier
- Years of manufacture: 1977 - 1982
- Made in: Japan
- Color: Silver
- Power consumption: 450 W
- Dimensions (WxHxD): 442 x 146 x 400mm
- Weight: 18.8 kg
- Original price approx.: 210'000 Yen (Japan, 1977), 1095 US-$, 2'950 DM
Connections
- Number of inputs:
- Direct in: 890mV, 50 kOhm
- Number of outputs:
- 2 x loudspeaker
1 x headphone jack
Technical Data
- Continuous power (at THD)
- 8 Ohm: 2 x 100W (10 Hz ... 20 kHz, 0.005% THD)
- 4 Ohm: 2 x 150W DIN
- Dynamic power
- 8 Ohm:
- 4 Ohm:
- Total harmonic distortion: < 0.005%.
- Attenuation factor: 80 at 8 Ohm
- Frequency response: 0 - 100'000 Hz (- 1 dB)
- Signal to noise ratio: >120 dB
- Crosstalk attenuation: - 70 dB (20 Hz ... 20 kHz)
- Noise voltage:
Special Features
- Real Time Processed DC Stereo Power Amplifier
- Function indicator lamp: "White" = Normal operation, "Red" = DC Offset
- Separate level controls L / R on rear panel
- Switch on rear panel for loudspeakers: "Direct Coupling - General Speaker", "Input Capacitor - Elektrostatic Speakers
- Output for peak LED display
Remarks[edit]
- 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)
- Other models in the same series:
Pictures[edit]
- [[Luxman Laboratory Reference Series 5M-20 Front
- Luxman Laboratory Reference Series description from Luxman USA
Reports[edit]
- External report: "Hifi Studio" website: [1]
Links[edit]
- External link: "The Vintage Knob" website: [2]
- External link: Audio Heritage, Japan website: [3]
Luxman Product Overview: Luxman