Difference between revisions of "Technics SU-A 6 MK 2"
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Technische Merkmale:
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__NOTOC__
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== Data ==
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{{navigation}}
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'''General'''
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* Manufacturer: [[Technics]]
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* Model: SU-A 6 MK 2
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* Type: Preamplifier
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* Years of manufacture: 1983 - 1988
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* Made in: Japan
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* Color: Black
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* Power consumption: 17 W
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* Dimensions: 430 x 98 x 360 mm (WxHxD)
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* Weight: 5.9 kg
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* Original price approx.: 1'500 DM
  
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- Übertrgungsbereich: 0,5 - 200000 Hz
 
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- Stereo DC Control Amplifier
 
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- MM, MC
 
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Technics SU-A6 MK2 Vorverstärker      Pre Amplifier     
 
  
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- Tape Monitor
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'''Connections'''
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- Super Bass
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* Number of inputs:
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- Straight DC
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** Phono MM: 2.5 mV / 47 kOhm, 150 mV max.
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- Subsonic Filter
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** Phono MC: 0.1 mV, 220 Ohm, max. 15 mV
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- Phono Selector
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** Tuner: 150 mV / 47 kOhm
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CD: 150 mV / 47 kOhm
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Aux: 150 mV / 47 kOhm
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** Tape Play 1, 2,3 : 150 mV / 47 kOhm
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** Video:
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** Computer Control In:
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* Number of Outputs:
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** Tape Rec 1, 2, 3: 150 mV, 600 ohms.
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** Video Rec:
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** Computer Control Out:
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** Pre Out: 2 V, max. 8 V, 2 Ohm
  
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Anschlüsse Hinten
 
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- Phono
 
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- Tuner
 
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- CD
 
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- TV/Aux2
 
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- Video/Aux1
 
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- Tape 3
 
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- Tape 2
 
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- Tape 1
 
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- Output
 
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- Computer Contol IN/OUT
 
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- GND
 
  
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Anschlüsse Vorne
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'''Technical Data'''
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- Video/Aux1 input
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* Frequency Response:
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** Phono: RIAA standard, + 0 dB, - 1 dB.
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** High level: 0.5 Hz - 200'000 Hz (+ 0 dB, - 3 dB)
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* Distortion factor: 0.002 %
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* Signal-to-noise ratio:
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* External voltage spacing: (nominal power)
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** Phono MM: 80 dB
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Phono MC: 73 dB
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** Tuner/Aux: 100 dB
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* Tone control
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** Super Bass: 30 Hz, 0 - +10 dB
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Bass: 50 Hz, ± 5 dB
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** Treble: 20 kHz, ± 5 dB
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** Super treble: 50 kHz, ± 10 dB
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* Loudness: + 7 dB at 50 Hz
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* High Filter: 7 kHz, - 6 dB / octave
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* Low Filter (Subsonic): 20 Hz, -12 dB / octave
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* Muting:
  
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- Abmessungen (B x H x T): ca. 430 x 95 x 370 mm
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[[Kategorie:Vorverstärker]]
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'''Special Features''''
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* Gold-plated Cinch connectors
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* Front connectors
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Video / Aux 1 input
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 +
 
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== Remarks ==
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* Other models in the same series:
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* Technics preamplifier
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** [[Technics SU-A 4 MK 2]]
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** [[Technics SU-A 6 MK 2]]
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* [[Technics power amplifier
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** [[Technics SE-A 3 MK 2]]
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** [[Technics SE-A 5 MK 2]]
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 +
 
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== Pictures ==
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* Excerpt from brochure: Technics combi SU-A 6 MK 2 / SE-A 5 MK 2
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[[File:Technics SE-A 5-SU-A 6 MK2-Prospekt-1.jpg|1600px]]
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 +
 
 +
== Reports ==
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Weakness is the MN6631A ICs - no longer available and sensitive to input pulses. Responsible for audio input switching. Owners often report short circuits in the ICs when active RCA connections are disconnected or plugged during operation. This is generally not recommended anyway. The ICs in question are numbered 301 to 305 in the service manual. Symptom: Device starts, input switching does not work, input selector LEDs dark and fuse in the 18 (23) volt supply area blows immediately.
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== Links ==
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* Report at "Adrian Kingston": [[http://www.adrian-kingston.com/SEA5.htm]]
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 +
[[Category:Preamplifier]]

Latest revision as of 18:58, 11 January 2021

Data[edit]

General

  • Manufacturer: Technics
  • Model: SU-A 6 MK 2
  • Type: Preamplifier
  • Years of manufacture: 1983 - 1988
  • Made in: Japan
  • Color: Black
  • Power consumption: 17 W
  • Dimensions: 430 x 98 x 360 mm (WxHxD)
  • Weight: 5.9 kg
  • Original price approx.: 1'500 DM


Connections

  • Number of inputs:
    • Phono MM: 2.5 mV / 47 kOhm, 150 mV max.
    • Phono MC: 0.1 mV, 220 Ohm, max. 15 mV
    • Tuner: 150 mV / 47 kOhm

CD: 150 mV / 47 kOhm Aux: 150 mV / 47 kOhm

    • Tape Play 1, 2,3 : 150 mV / 47 kOhm
    • Video:
    • Computer Control In:
  • Number of Outputs:
    • Tape Rec 1, 2, 3: 150 mV, 600 ohms.
    • Video Rec:
    • Computer Control Out:
    • Pre Out: 2 V, max. 8 V, 2 Ohm


Technical Data

  • Frequency Response:
    • Phono: RIAA standard, + 0 dB, - 1 dB.
    • High level: 0.5 Hz - 200'000 Hz (+ 0 dB, - 3 dB)
  • Distortion factor: 0.002 %
  • Signal-to-noise ratio:
  • External voltage spacing: (nominal power)
    • Phono MM: 80 dB

Phono MC: 73 dB

    • Tuner/Aux: 100 dB
  • Tone control
    • Super Bass: 30 Hz, 0 - +10 dB

Bass: 50 Hz, ± 5 dB

    • Treble: 20 kHz, ± 5 dB
    • Super treble: 50 kHz, ± 10 dB
  • Loudness: + 7 dB at 50 Hz
  • High Filter: 7 kHz, - 6 dB / octave
  • Low Filter (Subsonic): 20 Hz, -12 dB / octave
  • Muting:


Special Features'

  • Gold-plated Cinch connectors
  • Front connectors

Video / Aux 1 input


Remarks[edit]



Pictures[edit]

  • Excerpt from brochure: Technics combi SU-A 6 MK 2 / SE-A 5 MK 2

Technics SE-A 5-SU-A 6 MK2-Prospekt-1.jpg


Reports[edit]

Weakness is the MN6631A ICs - no longer available and sensitive to input pulses. Responsible for audio input switching. Owners often report short circuits in the ICs when active RCA connections are disconnected or plugged during operation. This is generally not recommended anyway. The ICs in question are numbered 301 to 305 in the service manual. Symptom: Device starts, input switching does not work, input selector LEDs dark and fuse in the 18 (23) volt supply area blows immediately.

Links[edit]

  • Report at "Adrian Kingston": [[1]]
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