Difference between revisions of "Philips 22 AH 280"

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== Daten ==
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__NOTOC__
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'''Allgemein'''
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== Data ==
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* Hersteller: Philips
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{{navigation}}
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* Modell: 22 AH 280
+
'''General'''
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* Baujahre: ~ um 1985-1990(?)
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* Manufacturer: [[Philips]]
−
* Typ: Vorverstärker
+
* Model: 22 AH 280
−
* Fernbedienung: nein
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* Years of manufacture: 1980 - ?
−
* Leistungsaufnahme: 28 Watt
+
* Type: Preamplifier
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* Abmessungen: 482(B)x75(H)x360(B)mm
+
* Remote control: no
−
* Gewicht: 6kg
+
* Power consumption: 28 watts
−
* Farbe: schwarz
+
* Dimensions: 482 x 75 x 360 mm (WxHxD)
−
* Neupreis ca.: 1000 DEM
+
* Weight: 6 kg
 +
* Color: black
 +
* Original price approx.: 1.000 DM (approx. 500 €)
  
  
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'''Anschlüsse'''
+
'''Connections'''
−
* Anzahl der Eingänge: 7
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* Number of inputs: 7
−
:* Phono 1
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** Phono 1
−
:* Phono 2
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** Phono 2
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:* AUX
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** AUX
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:* Tuner
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** Tuner
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:* Tape 1
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** Tape 1
−
:* Tape 2
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** Tape 2
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:* Mic
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** Mic
  
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* Anzahl der Ausgänge: 5
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* Number of outputs: 5
−
:* Tape 1 Rec
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** Tape 1 Rec
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:* Tape 2 Rec
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** Tape 2 Rec
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:* Ausgang 1 'Switched'
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** Output 1 'Switched
−
:* 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'''
 
−
* Eingang (Empfindlichkeit/Impedanz/Klirrgrad)
 
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:* Phono 1 und 2: 2mV/40kOhm/0,006%
 
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:* AUX, Tuner: 245mV/10kOhm/0,004%
 
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:* Tape1 und 2: 219mV/15kOhm/0,004%
 
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:* MIC: 1,7mV/47kOhm
 
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* Ausgang (Pegel/Impedanz)
 
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:* Tape 1/2: kA
 
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:* Ausgang 1 und 2: 2-8V/10kOhm
 
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:* Ausgang 3: 2,8-12,5V/600Ohm
 
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* Frequenzgang
 
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:* Phono 1 und 2: RIAA +-0,3dB
 
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:* AUX, Tuner, Tape 1/2: 10-200000Hz, -2dB
 
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:* MIC: 50-20000Hz, +0,5 -3dB
 
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* Klangregelung
 
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:*Bass:
 
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::* Übernahmefrequenz 250Hz
 
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:::* 70Hz/+-10dB
 
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::* Übernahmefreuqenz 500Hz
 
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:::* 100Hz/+-12dB
 
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:*Höhen:
 
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::* Übernahmefrequenz 2,5kHz
 
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:::* 9kHz/+-9dB
 
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::* Übernahmefrequenz 5kHz
 
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:::* 15kHz/+-12dB
 
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* Loudness: bei -31dB +10dB/100Hz, +4dB/10kHz
 
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* Subsonic: -9dB/10Hz
 
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* Mute: -20dB
 
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* Direct/LineStraight: ja
 
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* Brummspannungsabstand (kurzgeschlossen)
 
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:* Phono 1/2: (IEC A) 85dB, linear 75dB
 
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:* AUX, Tuner, Tape 1/2: (IEC A) 104dB, linear 92dB
 
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:* MIC: (IEC A) 78dB, linear 74dB
 
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* Stereokanaltrennung
 
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:* Phono 1/2: 60dB/1kHz
 
−
:* AUX, Tuner, Tape 1/2: 80dB/1kHz
 
  
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'''Besondere Ausstattungen'''
+
'''Technical Data'''
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* wählbare Übernahmefrequenz der Bass- und Höhenregler
+
* Input (Sensitivity / Impedance / Distortion)
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* Rauschfilter mit -3dB/8kHz (12dB/Oktave)
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** Phono 1 and 2: 2 mV / 40 kOhm / 0,006%
−
* voll gekapselte Potis
+
** AUX, Tuner: 245 mV / 10 kOhm / 0,004%
−
* einschraubbar in Hifi-Racks
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** Tape 1 and 2: 219 mV / 15 kOhm / 0.004%
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* drei Endstufen ansteuerbar, ein Ausgang +10dB
+
** 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
  
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== Bemerkungen ==
 
−
Weitere Modelle der gleichen Serie:
 
  
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== Bilder ==
+
'''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
  
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== Berichte ==
+
 
 +
== Remarks ==
 +
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:'''
 +
* Timer [[Philips 22 AH 080|22 AH 080]]
 +
* Tuner [[Philips 22 AH 180|22 AH 180]]
 +
* Preamplifier [[Philips 22 AH 280|22 AH 280]]
 +
* Integrated amplifier [[Philips 22 AH 380|22 AH 380]]
 +
* Cassette deck [[Philips N5758|N5758]]
 +
 
 +
== Pictures ==
 +
http://img501.imageshack.us/img501/5818/frontansicht5gm.jpg
 +
 
 +
Here again an interior view of the device:
 +
 
 +
Good to see the fully enclosed pots.
 +
http://img506.imageshack.us/img506/4/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
 +
 
 +
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 ==
 +
 +
[[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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