Difference between revisions of "Dual C 820"

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'''Marke''': [[Dual]]
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__NOTOC__
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== Data ==
 +
{{navigation}}
 +
'''General'''
 +
* Manufacturer: [[Dual]]
 +
* Model: C 820
 +
Type: Cassette Tape Deck
 +
* Years of manufacture: 1979 - 1982
 +
* Made in: Japan
 +
* Color: Silver or Brown
 +
* Remote control:
 +
* Power Consumption:
 +
* Dimensions (WxHxD): 440 x 150 x 360 mm.
 +
* Weight: 6.5 kg
 +
* Original price approx.: 698 DM
 +
 
 +
 
 +
'''Connections'''
 +
* Number of inputs: 2
 +
Line In: 0,15 mV
 +
** Microphone: 0.2 mV
 +
* Number of outputs:
 +
** Line Out: 1'000 mV, 3,3 kOhm
 +
** Monitor: 1'000 mV, 3,3 kOhm
 +
* Headphones (6.3mm jack): 775 mV, 400 Ohm
 +
 
 +
 +
'''Technical data:'''
 +
* Audio heads: 2
 +
** 1x head for recording and playback
 +
** 1x ferrite erase head
 +
* Motor: 1
 +
* Tape speed: 4.75 cm / s
 +
* Synchronization fluctuations: 0.04
 +
* Tape types:
 +
** Normal: Type I
 +
** Cr02: Type II
 +
** Metal: Type IV
 +
* Frequency response:
 +
** Normal Type I: 20 Hz - 17 kHz
 +
** Cr02 Type II: 20 Hz - 18 kHz
 +
** Metal Type IV: 20 Hz - 19 kHz
 +
* Distortion factor: 2.0
 +
* Signal-to-noise ratio:
 +
** Without Dolby: 58 dB
 +
** With Dolby: 66 dB
 +
* Crosstalk attenuation:
 +
* Auto-Reverse: no
 +
* Dolby: yes
 +
* Cancellation attenuation: > 70 dB
 +
* Premagnetization frequency: 100 kHz
 +
* Rewind time C-60 cassette: 100 seconds
 +
 
 +
 
 +
'''Special features:'''
 +
* Input selector switch for DIN and RCA jacks, and microphone (essential for operation on equipment with DIN jacks).
 +
* 6-step band selector switch
 +
* Limiter (prevents overloads and still retains dynamics, which is better than an automatic level control)
 +
* MPX filter
 +
* Headphone jacks
 +
* 2 microphone jacks: 6.3 mm jack
 +
* Detachable head cover
  
'''Modell''': C 820
 
  
Baujahre: 1979-82
+
== Remarks ==
 +
* DUAL's Load & Lock invention sensors allow the cassette to be removed on the fly. Simply reach in, the unit waits in playback standby for the next cassette and continues playing immediately. With the internal DIN adapter, the unit can be used not only with modern systems with RCA sockets, but also with older amplifiers and receivers with DIN connections. Switching is not necessary. By simply loosening the two knurled screws, the metal cover can be removed and the complete head and drive technology is exposed. If over the years a dust lint should have formed which could affect the drive. The 6-digit tape selector switch ensures brilliant sound with every cassette. The high-precision mechanism from the Black Forest ensures perfect precision for the entire life of the cassette recorder, without ever "weakening". The very easy to use ergonomic toggle switches with metal knob work perfectly and without dropouts or "cracking". With the tandem potentiometer both channels can be controlled separately. Simply hold one and control the other. Thanks to the peak level indicator, your favorite recordings can be perfectly levelled to within 1 decibel (dB)! For your own microphone recordings, the DUAL has 6.3 mm jack sockets, separately for left and right. The switchable level limiter provides for a limitation of too high levels in manual level control mode. Advantage: no loss of dynamic range, no constantly changing volume levels as caused by automatic level control. What other device today offers so many possibilities to let your creativity run free?
  
Neupreis ca.: 600 DM
 
  
== Technische Daten ==
+
* Other models of the same series:
*Eingangswahlschalter für DIN- und Cinch-Buchsen, und Mikrofon (unverzichtbar für den Betrieb an Geräten mit DIN-Buchsen)
+
* [[Dual C 819]]
*6-stufiger Bandwahlschalter
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* [[Dual C 820]]
*Limiter (verhindert Übersteuerungen und behält trotzdem die Dynamik, das ist besser als eine Aussteuerautomatik)
+
* [[Dual C 839 RC]]
*Phones-Buchse
 
*2 Mikrofonbuchsen: 6,3 mm Klinke
 
*abnehmbare Kopfblende
 
*Frequenzgang: 20-19.000 Hz
 
*Gleichlaufschwankungen: +/- 0,04 % WRMS
 
  
== Bemerkungen ==
 
Die Sensoren der Load & Lock-Erfindung von DUAL erlauben das Entnehmen der Kassette während des Betriebs. Einfach hineingreifen, das Gerät wartet in Wiedergabe-Wartestellung auf die nächste Kassette und spielt sofort weiter. Mit dem intern eingebauten DIN-Adapter lässt sich das Gerät nicht nur an moderne Anlagen mit Cinch-Buchsen, sondern auch an ältere Verstärker und Receiver mit DIN-Anschlüssen betreiben. Ein Umschalten ist nicht notwendig. Durch einfaches Lösen der beiden Rändelschrauben kann die Metallabdeckung abgenommen werden und die komplette Kopf- und Antriebstechnik ist freigelegt. Falls sich mit den Jahren einmal ein Staubfussel gebildet haben sollte, das den Antrieb beeinflussen könnte. Der 6-stellige Bandsortenschalter sorgt bei jeder Kassette für brillanten Sound. Die Hochpräzisionsmechanik aus dem Schwarzwald sort für perfekte Präzision ein ganzes Kassettenrekorderleben lang, ohne je zu "schwächeln". Die sehr leicht gängigen ergonomischen Kippschalter mit Metallknopf arbeiten perfekt und ohne Aussetzer oder "Knacksen". Mit dem Tandempotentiometer lassen sich auch beide Kanäle getrennt aussteuern. Einfach den einen festhalten und den andern regeln. Dank des Peak-Level-Indikators lassen sich Ihre Lieblingsaufnahmen perfekt auf 1 Dezibel (dB) genau aussteuern! Für eigene Mikrofonaufnahmen besitzt der DUAL 6,3 mm Klinkenbuchsen, getrennt für links und rechts. Der schaltbare Aussteuerungslimiter sorgt im manuellen Aussteuerungsbetrieb für eine Begrenzung bei zu hohen Pegeln. Vorteil: kein Dynamikverlust, keine sich andauernd ändernde Lautstärken wie es Aussteuerungsautomatiken verursachen. Welches Gerät bietet heute noch so viel Möglichkeiten, um seiner Kreativität so freien Lauf zu lassen?
 
  
Weitere Modelle der gleichen Serie:
+
== Pictures ==
 +
* Extract from brochure: Dual C 820
 +
[[File:Dual C-820-Prospekt-1.jpg]]
 +
 
 +
 
 +
== Reports ==
  
== Bilder ==
 
[[Datei:Dual C 820.jpg]]
 
== Testberichte ==
 
  
 
== Links ==
 
== Links ==
  
[[Kategorie:Kassettendecks]]
+
 
__NOTOC__
+
[[Category:Cassette decks]]

Latest revision as of 05:17, 10 June 2019

Data[edit]

General

  • Manufacturer: Dual
  • Model: C 820

Type: Cassette Tape Deck

  • Years of manufacture: 1979 - 1982
  • Made in: Japan
  • Color: Silver or Brown
  • Remote control:
  • Power Consumption:
  • Dimensions (WxHxD): 440 x 150 x 360 mm.
  • Weight: 6.5 kg
  • Original price approx.: 698 DM


Connections

  • Number of inputs: 2

Line In: 0,15 mV

    • Microphone: 0.2 mV
  • Number of outputs:
    • Line Out: 1'000 mV, 3,3 kOhm
    • Monitor: 1'000 mV, 3,3 kOhm
  • Headphones (6.3mm jack): 775 mV, 400 Ohm


Technical data:

  • Audio heads: 2
    • 1x head for recording and playback
    • 1x ferrite erase head
  • Motor: 1
  • Tape speed: 4.75 cm / s
  • Synchronization fluctuations: 0.04
  • Tape types:
    • Normal: Type I
    • Cr02: Type II
    • Metal: Type IV
  • Frequency response:
    • Normal Type I: 20 Hz - 17 kHz
    • Cr02 Type II: 20 Hz - 18 kHz
    • Metal Type IV: 20 Hz - 19 kHz
  • Distortion factor: 2.0
  • Signal-to-noise ratio:
    • Without Dolby: 58 dB
    • With Dolby: 66 dB
  • Crosstalk attenuation:
  • Auto-Reverse: no
  • Dolby: yes
  • Cancellation attenuation: > 70 dB
  • Premagnetization frequency: 100 kHz
  • Rewind time C-60 cassette: 100 seconds


Special features:

  • Input selector switch for DIN and RCA jacks, and microphone (essential for operation on equipment with DIN jacks).
  • 6-step band selector switch
  • Limiter (prevents overloads and still retains dynamics, which is better than an automatic level control)
  • MPX filter
  • Headphone jacks
  • 2 microphone jacks: 6.3 mm jack
  • Detachable head cover


Remarks[edit]

  • DUAL's Load & Lock invention sensors allow the cassette to be removed on the fly. Simply reach in, the unit waits in playback standby for the next cassette and continues playing immediately. With the internal DIN adapter, the unit can be used not only with modern systems with RCA sockets, but also with older amplifiers and receivers with DIN connections. Switching is not necessary. By simply loosening the two knurled screws, the metal cover can be removed and the complete head and drive technology is exposed. If over the years a dust lint should have formed which could affect the drive. The 6-digit tape selector switch ensures brilliant sound with every cassette. The high-precision mechanism from the Black Forest ensures perfect precision for the entire life of the cassette recorder, without ever "weakening". The very easy to use ergonomic toggle switches with metal knob work perfectly and without dropouts or "cracking". With the tandem potentiometer both channels can be controlled separately. Simply hold one and control the other. Thanks to the peak level indicator, your favorite recordings can be perfectly levelled to within 1 decibel (dB)! For your own microphone recordings, the DUAL has 6.3 mm jack sockets, separately for left and right. The switchable level limiter provides for a limitation of too high levels in manual level control mode. Advantage: no loss of dynamic range, no constantly changing volume levels as caused by automatic level control. What other device today offers so many possibilities to let your creativity run free?



Pictures[edit]

  • Extract from brochure: Dual C 820

Dual C-820-Prospekt-1.jpg


Reports[edit]

Links[edit]