Difference between revisions of "Akai GX-747"
 
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__NOTOC__
 
__NOTOC__
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== Daten ==
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== Data ==
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'''''AKAI Bandmaschine GX-747'''''
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{{navigation}}
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{{Navigation}}
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'''General'''
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'''Allgemein'''
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* Manufacturer: [[Akai]]
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* Hersteller: [[Akai]]
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* Model: GX-747
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* Modell: GX-747
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* Type: Tape machine
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* Baujahre: 1982
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* Years of manufacture: 1981 - 1984
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* Hergestellt in:
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* Made in: Japan
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* Farbe:
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* Color: Silver, Black
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* Fernbedienung:
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* Remote control: yes, RC-90 wired
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* Leistungsaufnahme:  
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* Power consumption: 80 W
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* Abmessungen: 44,0 x 48,3 x 25,6 cm
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* Dimensions: 440 x 483 x 256 mm (WxHxD)
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* Gewicht: 23,2kg / 21kg
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* Weight: 21 kg
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* Neupreis ca.: 2900 DM
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* Original price approx.: 2'900 DM
  
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'''Anschlüsse'''
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* Anzahl der Ausgänge:
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'''Connections'''
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** Line 0,775 V bei 0 VU
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* Number of outputs:
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** DIN 0,3 V
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** Line 0.775 V at 0 VU
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** Kopfhörer 6,3 mm Klinke
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DIN 0.3 V
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* Anzahl der Eingänge:
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** Headphone 6,3 mm jack
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** Mikrofon 0,25 mV (5,0 kohm) 2x 6,3 Klinke
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* Number of inputs:
 +
** Microphone 0.25 mV (5.0 kohm) 2x 6.3 jack
 
** Line 70 mV
 
** Line 70 mV
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** DIN 2,0 mV
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** DIN 2.0 mV
 +
 
 +
 
 +
'''Technical Data'''
 +
* Max. coil diameter: 26,8 cm
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* Drive: 3 motors
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AC Servo Motor for Capstan-drive 1x
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AC Eddy current Motor for Reel 2x
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* Heads: 6x
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2x GX heads recording
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** 2x GX heads playback
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** 2x erase heads 
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* Tracks: Quarter track, 2-channel, stereo
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* Tape speeds:
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** 19.0 cm/ s ± 0.8 %
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** 9,5 cm/ s ± 1,0 %
 +
* Synchronisation fluctuations:
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** <0.03 % WRMS, 0.07 % DIN 45500 at 19.0 cm/ s
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** <0.04 % WRMS, 0.09 % DIN 45500 at 9.5 cm/ s
 +
* Frequency response:
 +
** 25 - 33,000 Hz ± 3 dB at 19.0 cm/ s
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25 - 26,000 Hz ± 3 dB (0 VU)
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** 25 - 25,000 Hz ± 3 dB at 9.5 cm/ s
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** 25 - 15,000 Hz ± 3 dB (0 VU)
 +
* Signal-to-noise ratio: <65 dB at 19.0 cm/ s (DIN45500)
 +
* Signal-to-noise ratio: ~60 dB
 +
* Distortion factor: <0.4 % at 19.0 cm/ s
 +
* Equalization:
 +
* Crosstalk attenuation:
 +
* Cancellation attenuation:
 +
* Premagnetization and extinction frequency:
  
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'''Technische Daten'''
 
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* max. Spulendurchmesser: 26,8 cm
 
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* Antrieb: 3 Motoren
 
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** AC Servo Motor für Capstan-drive 1x
 
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** AC Eddy current Motor for Reel 2x
 
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* Köpfe: 6x
 
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** 2x GX Köpfe Aufnahme
 
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** 2x GX Köpfe Wiedergabe
 
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** 2x Löschköpfe 
 
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* Spuren: Viertelspur, 2-Kanal, Stereo
 
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* Bandgeschwindigkeiten:
 
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** 19,0 cm/ s +- 0,8 %
 
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** 9,5 cm/ s +- 1,0 %
 
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* Schlupf:
 
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* Gleichlaufschwankungen:
 
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** <0,03 % WRMS, 0,07 % DIN 45500 bei 19,0 cm/ s
 
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** <0,04 % WRMS, 0,09 % DIN 45500 bei 9,5 cm/ s
 
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* Frequenzgang:
 
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** 25 - 33.000 Hz +- 3 dB bei 19,0 cm/ s
 
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** 25 - 26.000 Hz +- 3 dB (0 VU)
 
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** 25 - 25.000 Hz +- 3 dB bei 9,5 cm/ s
 
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** 25 - 15.000 Hz +- 3 dB (0 VU)
 
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* Signalrauschabstand: <65 dB bei 19,0 cm/ s (DIN45500)
 
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* Fremdspannungsabstand: ~60 dB
 
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* Klirrfaktor: <0,4 % bei 19,0 cm/ s
 
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* Entzerrung:
 
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* Übersprechdämpfung:
 
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* Löschdämpfung:
 
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* Vormagnetisierungs- und Löschfrequenz:
 
  
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'''Besondere Ausstattungen'''
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'''Special Features'''
 
* Auto-Reverse
 
* Auto-Reverse
 +
* Pitch Control
 +
* Timer Start
 +
* Bias Adjust
 +
* Auto Mute
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 +
 +
== Remarks ==
 +
* Other models in the same series:
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** [[Akai GX-4000 D]]
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** [[Akai GX-77]]
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** [[Akai GX-625 D]]
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** [[Akai GX-636 D]]
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** [[Akai GX-636 DB]]
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** [[Akai GX-646]]
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** [[Akai GX-747]]
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** [[Akai GX-747-DBX]]
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 +
 +
== Pictures ==
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* [[Image: Akai GX-747
 +
[[Image:Akai GX-747 1.jpg]]
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 +
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* Image: Akai GX-747
 +
[[Image:Akai GX-747 2.jpg]]
 +
{{image audioscope}}
 +
  
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== Bemerkungen ==
 
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Weitere Modelle der gleichen Serie:
 
  
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== Bilder ==
 
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[[Bild:Akai GX-747 1.jpg]]
 
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[[Bild:Akai GX-747 2.jpg]]
 
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{{Bild Audioscope}}
 
  
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== Berichte ==
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* Excerpt from brochure: Akai GX-747
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[[Datei:Akai GX-747-Prospekt-1.jpg]]
 +
 
 +
 
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== Reports ==
 +
* Test report / comparison: [[https://www.tonband.net/test1.php]] vs.
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** [[Akai GX-747]]
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** [[ASC AS 6002]]
 +
** [[Tandberg TD-20A SE]]
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** [[Teac X-1000 R]]
 +
 
  
 
== Links ==
 
== Links ==
 +
* Technical data at "Mackers": [[http://www.mackern.de/index.php/2016/09/29/akai-gx-747/]]
 +
  
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[[Kategorie:Bandmaschinen]]
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[[Category:Tape Machines]]

Latest revision as of 00:03, 9 August 2018

Data[edit]

General

  • Manufacturer: Akai
  • Model: GX-747
  • Type: Tape machine
  • Years of manufacture: 1981 - 1984
  • Made in: Japan
  • Color: Silver, Black
  • Remote control: yes, RC-90 wired
  • Power consumption: 80 W
  • Dimensions: 440 x 483 x 256 mm (WxHxD)
  • Weight: 21 kg
  • Original price approx.: 2'900 DM


Connections

  • Number of outputs:
    • Line 0.775 V at 0 VU

DIN 0.3 V

    • Headphone 6,3 mm jack
  • Number of inputs:
    • Microphone 0.25 mV (5.0 kohm) 2x 6.3 jack
    • Line 70 mV
    • DIN 2.0 mV


Technical Data

  • Max. coil diameter: 26,8 cm
  • Drive: 3 motors

AC Servo Motor for Capstan-drive 1x AC Eddy current Motor for Reel 2x

  • Heads: 6x

2x GX heads recording

    • 2x GX heads playback
    • 2x erase heads
  • Tracks: Quarter track, 2-channel, stereo
  • Tape speeds:
    • 19.0 cm/ s ± 0.8 %
    • 9,5 cm/ s ± 1,0 %
  • Synchronisation fluctuations:
    • <0.03 % WRMS, 0.07 % DIN 45500 at 19.0 cm/ s
    • <0.04 % WRMS, 0.09 % DIN 45500 at 9.5 cm/ s
  • Frequency response:
    • 25 - 33,000 Hz ± 3 dB at 19.0 cm/ s

25 - 26,000 Hz ± 3 dB (0 VU)

    • 25 - 25,000 Hz ± 3 dB at 9.5 cm/ s
    • 25 - 15,000 Hz ± 3 dB (0 VU)
  • Signal-to-noise ratio: <65 dB at 19.0 cm/ s (DIN45500)
  • Signal-to-noise ratio: ~60 dB
  • Distortion factor: <0.4 % at 19.0 cm/ s
  • Equalization:
  • Crosstalk attenuation:
  • Cancellation attenuation:
  • Premagnetization and extinction frequency:


Special Features

  • Auto-Reverse
  • Pitch Control
  • Timer Start
  • Bias Adjust
  • Auto Mute


Remarks[edit]


Pictures[edit]

  • [[Image: Akai GX-747

Akai GX-747 1.jpg


  • Image: Akai GX-747

Akai GX-747 2.jpg Template:Image audioscope



  • Excerpt from brochure: Akai GX-747

Datei:Akai GX-747-Prospekt-1.jpg


Reports[edit]


Links[edit]

  • Technical data at "Mackers": [[2]]
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