Difference between revisions of "Luxman Laboratory Reference Series 5M-21"
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| − | ==   | + | __NOTOC__  | 
| − | '''  | + | == Data ==  | 
| − | *   | + | '''General'''  | 
| − | *   | + | * Manufacturer: [[Luxman]]  | 
| − | *   | + | * Model: Laboratory Reference 5M-21  | 
| − | *   | + | * Type: DC Stereo power amplifier  | 
| − | *   | + | * Years of manufacture: 1976 - 1982  | 
| − | + | * Made in: Japan  | |
| − | *   | + | * Color: Silver  | 
| − | *   | + | * Power consumption: 450 W  | 
| − | *   | + | * Dimensions (WxHxD): 442 x 146 x 400 mm  | 
| − | *   | + | * Weight: 19 kg    | 
| + | * Original price approx.: 240'000 Yen (Japan, 1976), 1295 US-$, 4'200 DM  | ||
| − | '''  | + | '''Connections'''  | 
| − | *   | + | * Number of inputs:  | 
| − | ** Direct in:   | + | ** 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   | + | ** 8 Ohm: 2 x 100W (10 Hz - 20 kHz, 0.005% THD  | 
| − | ** 4 Ohm: 2 x   | + | ** 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 Power Amplifier  | 
| − | *   | + | * VU meter separately for left and right channel  | 
| − | *   | + | * Sensitivity selector switch for VU meter: 0 dB, - 10 dB  | 
| − | *   | + | * 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 ==  | 
| − | *   | + | * 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-21 Front  | 
| − | [[  | + | [[File:Luxman 5M-21-1.jpg]]  | 
| − | * Luxman Laboratory Reference   | + | * Luxman Laboratory Reference Series 5M-21 Front Right Details  | 
| − | [[  | + | [[File:Luxman 5M-21-2.jpg]]  | 
| − | * Luxman Laboratory Reference   | + | * Luxman Laboratory Reference Series 5M-21 interior view  | 
| − | [[  | + | [[File:Luxman 5M-21-5.jpg]]  | 
| − | * Luxman Laboratory Reference   | + | * Luxman Laboratory Reference Series 5M-21 back panel  | 
| − | [[  | + | [[File:Luxman 5M-21-4.jpg]]  | 
| − | * Luxman Laboratory Reference   | + | * Luxman Laboratory Reference Series 5M-21 back panel detail view right side  | 
| − | [[  | + | [[File:Luxman 5M-21-6.jpg]]  | 
| − | * Luxman Laboratory Reference Series   | + | * Luxman Laboratory Reference Series brochure image  | 
| − | [[  | + | [[File:Luxman Laboratory Reference Series-1.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 ==  | ||
| + | * External link: "Hifi Archive" website: [http://www.hifi-archiv.info/Luxman/1980/Luxman80_04.jpg]  | ||
| − | + | * External Link: "Hifi Archive" website: [http://www.hifi-archiv.info/Luxman/Lab/luxman-04.jpg]  | |
| − | *   | + | |
| + | * 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/5m21.html]  | ||
| + | |||
| + | * Luxman product overview: [[Luxman]]  | ||
| − | |||
| − | + | [[Category:Power Amplifiers]]  | |
Latest revision as of 02:29, 23 May 2019
Data
General
- Manufacturer: Luxman
 - Model: Laboratory Reference 5M-21
 - Type: DC Stereo power amplifier
 - Years of manufacture: 1976 - 1982
 - Made in: Japan
 - Color: Silver
 - Power consumption: 450 W
 - Dimensions (WxHxD): 442 x 146 x 400 mm
 - Weight: 19 kg
 - Original price approx.: 240'000 Yen (Japan, 1976), 1295 US-$, 4'200 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
 - VU meter separately for left and right channel
 - Sensitivity selector switch for VU meter: 0 dB, - 10 dB
 - 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
- 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
- [[Luxman Laboratory Reference Series 5M-21 Front
 
- Luxman Laboratory Reference Series 5M-21 Front Right Details
 
- Luxman Laboratory Reference Series 5M-21 interior view
 
- Luxman Laboratory Reference Series 5M-21 back panel
 
- Luxman Laboratory Reference Series 5M-21 back panel detail view right side
 
- Luxman Laboratory Reference Series brochure image
 
- Luxman Laboratory Reference Series description from Luxman USA
 
Reports
- External report: "Hifi Studio" website: [1]
 
Links
- External link: "Hifi Archive" website: [2]
 
- External Link: "Hifi Archive" website: [3]
 
- External Link: "The Vintage Knob" website: [4]
 
- External link: Audio Heritage, Japan website: [5]
 
- Luxman product overview: Luxman
 






