Difference between revisions of "Philips 22 AH 280"

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__NOTOC__
 
__NOTOC__
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== Daten ==
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== Data ==
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{{Navigation}}
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{{navigation}}
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'''Allgemein'''
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'''General'''
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* Hersteller: Philips
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* Manufacturer: [[Philips]]
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* Modell: 22 AH 280
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* Model: 22 AH 280
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* Baujahre: ~ um 1985-1990(?)
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* Years of manufacture: 1980 - ?
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* Typ: Vorverstärker
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* Type: Preamplifier
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* Fernbedienung: nein
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* Remote control: no
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* Leistungsaufnahme: 28 Watt
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* Power consumption: 28 watts
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* Abmessungen: 482 x 75 x 360 mm (BxHxT)
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* Dimensions: 482 x 75 x 360 mm (WxHxD)
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* Gewicht: 6kg
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* Weight: 6 kg
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* Farbe: schwarz
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* Color: black
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* Neupreis ca.: 1.000 DM (ca. 500€)
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* Original price approx.: 1.000 DM (approx. 500 €)
  
  
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'''Anschlüsse'''
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'''Connections'''
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* Anzahl der Eingänge: 7
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* Number of inputs: 7
 
** Phono 1
 
** Phono 1
 
** Phono 2
 
** Phono 2
Line 25: Line 25:
 
** Mic
 
** Mic
  
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* Anzahl der Ausgänge: 5
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* Number of outputs: 5
 
** Tape 1 Rec
 
** Tape 1 Rec
 
** Tape 2 Rec
 
** Tape 2 Rec
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** Ausgang 1 'Switched'
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** Output 1 'Switched
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** Ausgang 2 'Unswitched'
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** Output 2 'Unswitched
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** Ausgang 3 '+10dB'
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** Output 3 '+10dB
  
  
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'''Technische Daten'''
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'''Technical Data'''
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* Eingang (Empfindlichkeit/Impedanz/Klirrgrad)
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* Input (Sensitivity / Impedance / Distortion)
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** Phono 1 und 2: 2mV/40kOhm/0,006%
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** Phono 1 and 2: 2 mV / 40 kOhm / 0,006%
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** AUX, Tuner: 245mV/10kOhm/0,004%
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** AUX, Tuner: 245 mV / 10 kOhm / 0,004%
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** Tape1 und 2: 219mV/15kOhm/0,004%
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** Tape 1 and 2: 219 mV / 15 kOhm / 0.004%
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** MIC: 1,7mV/47kOhm
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** MIC: 1.7 mV / 47 kOhm
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* Ausgang (Pegel/Impedanz)
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* Output (level/impedance)
 
** Tape 1/2: kA
 
** Tape 1/2: kA
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** Ausgang 1 und 2: 2-8V/10kOhm
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** Output 1 and 2: 2-8 V / 10 kOhm
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** Ausgang 3: 2,8-12,5V/600Ohm
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** Output 3: 2.8-12.5 V / 600 Ohm
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* Frequenzgang
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* Frequency response
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** Phono 1 und 2: RIAA ±0,3dB
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** Phono 1 and 2: RIAA ±0.3 dB
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** AUX, Tuner, Tape 1/2: 10-20.000Hz, -2dB
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** AUX, Tuner, Tape 1/2: 10-20,000 Hz, -2 dB
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** MIC: 50-20.000Hz, +0,5 -3dB
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** MIC: 50-20,000Hz, +0.5 dB / -3 dB
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* Klangregelung
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* Tone control
 
** Bass:
 
** Bass:
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*** Übernahmefrequenz 250Hz: ±10dB (bei 70Hz)
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*** Crossover frequency 250 Hz: ±10 dB (at 70 Hz)
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*** Übernahmefreuqenz 500Hz: ±10dB (bei 100Hz)
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*** Crossover frequency 500 Hz: ±10 dB (at 100 Hz)
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** Höhen:
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Treble:
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*** Übernahmefrequenz 2,5kHz: ±9dB (bei 9kHz)
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*** Crossover frequency 2.5 kHz: ±9 dB (at 9 kHz)
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*** Übernahmefrequenz 5kHz: ±12dB (bei 15kHz)
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*** Crossover frequency 5 kHz: ±12 dB (at 15 kHz)
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* Loudness: ja, bei -31dB (+10dB (bei 100Hz), +4dB (bei 10kHz))
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Loudness: yes, at -31 dB (+10 dB at 100Hz / +4 dB at 10 kHz)
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* Subsonic: ja, -9dB/10Hz
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* Subsonic: yes, -9 dB at 10 Hz
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* Mute: ja, -20dB
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* Mute: yes, -20 dB
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* Direct/LineStraight: ja
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* Direct/LineStraight: yes
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* Brummspannungsabstand (kurzgeschlossen)
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* Ripple spacing (shorted).
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** Phono 1/2: (IEC A) 85dB, linear 75dB
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** Phono 1/2: (IEC A) 85 dB, linear 75 dB
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** AUX, Tuner, Tape 1/2: (IEC A) 104dB, linear 92dB
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** AUX, Tuner, Tape 1/2: (IEC A) 104 dB / linear 92 dB
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** MIC: (IEC A) 78dB, linear 74dB
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MIC: (IEC A) 78 dB / linear 74 dB
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* Stereokanaltrennung
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* Stereo channel separation
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** Phono 1/2: 60dB/1kHz
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Phono 1/2: 60 dB/1 kHz
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** AUX, Tuner, Tape 1/2: 80dB/1kHz
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** AUX, Tuner, Tape 1/2: 80 dB at 1 kHz
  
  
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'''Besondere Ausstattungen'''
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'''Special Features'''
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* wählbare Übernahmefrequenz der Bass- und Höhenregler
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* selectable crossover frequency of bass and treble controls
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* Rauschfilter mit -3dB/8kHz (12dB/Oktave)
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* noise filter with -3 dB at 8 kHz (12 dB/octave)
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* voll gekapselte Potis
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* fully encapsulated potentiometers
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* einschraubbar in Hifi-Racks
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* screwable into hifi racks
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* drei Endstufen ansteuerbar, ein Ausgang +10dB
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* three power amplifiers controllable, one output +10 dB
  
  
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== Bemerkungen ==
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== Remarks ==
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Dieser Vorverstärker ist sehr robust und langzeitstabil aufgebaut. Durch seine voll gekapselten Potis ist er auch nach 15 Jahren Spielzeit nahezu völlig rauschfrei bei Betätigung von Klang- oder Lautstärkereglern. Durch die komplett geschlossene Bauweise ist das Gerät völlig immun gegen Staubattacken.
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This preamplifier is built very robust and long term stable. Due to its fully encapsulated potentiometers it is almost completely noise-free when operating tone or volume controls, even after 15 years of playing. Due to the completely enclosed construction, the unit is completely immune to dust attacks.
  
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In seiner Optik besticht er durch eine massive Metallfront (sicher 5-6mm dick), mit der er sich in ein Hifi-Rack einschrauben lässt.
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In its appearance it impresses with a solid metal front (certainly 5-6mm thick), with which it can be screwed into a hi-fi rack.
  
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Die drei Ausgänge der Vorstufe bieten einen wirklich flexiblen Einsatz des Gerätes.
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The three outputs of the preamp offer a really flexible use of the device.
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Ein Ausgang wird durch den Kopfhörerausgang abgeschaltet ('Switched'), der zweite und dritte bleibt dauerhaft aktiv, wobei der dritte in der Lage ist, das Signal 10dB verstärkt auszugeben. Damit lassen sich dann auch größere Endstufen ansteuern.
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One output is switched off ('switched') by the headphone output, the second and third remain permanently active, the third being capable of outputting the signal amplified by 10dB. This makes it possible to drive even larger power amplifiers.
  
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Weitere Geräte aus der Serie sind der Vollverstärker 22ah380, der Tuner 22ah180, Timer 22ah080 und das passende Tapedeck N5758
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'''Other devices from the series:'''
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* Timer [[Philips 22 AH 080|22 AH 080]]
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* Tuner [[Philips 22 AH 180|22 AH 180]]
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* Preamplifier [[Philips 22 AH 280|22 AH 280]]
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* Integrated amplifier [[Philips 22 AH 380|22 AH 380]]
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* Cassette deck [[Philips N5758|N5758]]
  
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== Bilder ==
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== Pictures ==
 
http://img501.imageshack.us/img501/5818/frontansicht5gm.jpg
 
http://img501.imageshack.us/img501/5818/frontansicht5gm.jpg
  
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Hier nochmal eine Innenansicht des Gerätes:
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Here again an interior view of the device:
  
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Gut zu sehen die voll gekapselten Potis.
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Good to see the fully enclosed pots.
 
http://img506.imageshack.us/img506/4/innenansicht7zh.jpg
 
http://img506.imageshack.us/img506/4/innenansicht7zh.jpg
  
  
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== Berichte ==
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here in a group of his peers:
 +
from top to bottom: Tuner 22ah180, Pre amp 22ah280,Tape deck N5758, Timer 22ah080, Amp 22ah380
 +
 
 +
http://img366.imageshack.us/img366/7723/rack80xs0.jpg
 +
 
 +
 
 +
and again photographed, as highlight of a Philips Hifi magazine Anno 1980 for the price of a (at that time) middle class car:
 +
 
 +
http://img229.imageshack.us/img229/7503/pag014seym9.jpg
 +
 
 +
== Reports ==
  
 
== Links ==
 
== Links ==
  
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[[Kategorie:Vorverstärker]]
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[[Category:Preamplifier]]

Latest revision as of 22:11, 29 June 2015

Data[edit]

General

  • Manufacturer: Philips
  • Model: 22 AH 280
  • Years of manufacture: 1980 - ?
  • Type: Preamplifier
  • Remote control: no
  • Power consumption: 28 watts
  • Dimensions: 482 x 75 x 360 mm (WxHxD)
  • Weight: 6 kg
  • Color: black
  • Original price approx.: 1.000 DM (approx. 500 €)


Connections

  • Number of inputs: 7
    • Phono 1
    • Phono 2
    • AUX
    • Tuner
    • Tape 1
    • Tape 2
    • Mic
  • Number of outputs: 5
    • Tape 1 Rec
    • Tape 2 Rec
    • Output 1 'Switched
    • Output 2 'Unswitched
    • Output 3 '+10dB


Technical Data

  • Input (Sensitivity / Impedance / Distortion)
    • Phono 1 and 2: 2 mV / 40 kOhm / 0,006%
    • AUX, Tuner: 245 mV / 10 kOhm / 0,004%
    • Tape 1 and 2: 219 mV / 15 kOhm / 0.004%
    • MIC: 1.7 mV / 47 kOhm
  • Output (level/impedance)
    • Tape 1/2: kA
    • Output 1 and 2: 2-8 V / 10 kOhm
    • Output 3: 2.8-12.5 V / 600 Ohm
  • Frequency response
    • Phono 1 and 2: RIAA ±0.3 dB
    • AUX, Tuner, Tape 1/2: 10-20,000 Hz, -2 dB
    • MIC: 50-20,000Hz, +0.5 dB / -3 dB
  • Tone control
    • Bass:
      • Crossover frequency 250 Hz: ±10 dB (at 70 Hz)
      • Crossover frequency 500 Hz: ±10 dB (at 100 Hz)

Treble:

      • Crossover frequency 2.5 kHz: ±9 dB (at 9 kHz)
      • Crossover frequency 5 kHz: ±12 dB (at 15 kHz)

Loudness: yes, at -31 dB (+10 dB at 100Hz / +4 dB at 10 kHz)

  • Subsonic: yes, -9 dB at 10 Hz
  • Mute: yes, -20 dB
  • Direct/LineStraight: yes
  • Ripple spacing (shorted).
    • Phono 1/2: (IEC A) 85 dB, linear 75 dB
    • AUX, Tuner, Tape 1/2: (IEC A) 104 dB / linear 92 dB

MIC: (IEC A) 78 dB / linear 74 dB

  • Stereo channel separation

Phono 1/2: 60 dB/1 kHz

    • AUX, Tuner, Tape 1/2: 80 dB at 1 kHz


Special Features

  • selectable crossover frequency of bass and treble controls
  • noise filter with -3 dB at 8 kHz (12 dB/octave)
  • fully encapsulated potentiometers
  • screwable into hifi racks
  • three power amplifiers controllable, one output +10 dB


Remarks[edit]

This preamplifier is built very robust and long term stable. Due to its fully encapsulated potentiometers it is almost completely noise-free when operating tone or volume controls, even after 15 years of playing. Due to the completely enclosed construction, the unit is completely immune to dust attacks.

In its appearance it impresses with a solid metal front (certainly 5-6mm thick), with which it can be screwed into a hi-fi rack.

The three outputs of the preamp offer a really flexible use of the device. One output is switched off ('switched') by the headphone output, the second and third remain permanently active, the third being capable of outputting the signal amplified by 10dB. This makes it possible to drive even larger power amplifiers.

Other devices from the series:

Pictures[edit]

frontansicht5gm.jpg

Here again an interior view of the device:

Good to see the fully enclosed pots. innenansicht7zh.jpg


here in a group of his peers: from top to bottom: Tuner 22ah180, Pre amp 22ah280,Tape deck N5758, Timer 22ah080, Amp 22ah380

rack80xs0.jpg


and again photographed, as highlight of a Philips Hifi magazine Anno 1980 for the price of a (at that time) middle class car:

pag014seym9.jpg

Reports[edit]

Links[edit]

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