Precision Audio Component / Pre-Main Amplifier PMA-250

Denon (Marke / brand)

Data
Forum
Pictures
Collections

  • Year
  • 1989
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 219475

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 110 or 120 or 220 or 240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 50 W (80 W max.)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Precision Audio Component / Pre-Main Amplifier PMA-250 - Denon Marke / brand
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 434 x 85 x 257 mm / 17.1 x 3.3 x 10.1 inch
  • Notes

  • A stereo hi-fi integrated amplifier in a black or champagne gold metal case with output power of 25 watts per channel into 8 ohms. RCA input sockets for Phono (MM), CD/CD Direct, Tuner and Aux, RCA input/output sockets for Tape Playback/Record, terminals for 1 pair of loudspeakers and a jack for headphones. Rotary Bass and Treble controls, button for CD Direct. 2 switched and 1 AC outlets (Asia, USA and Canada models).

    Specification
    Power Amplifier Section
    Rated Output Power:  Both channels driven (TUNER → SP OUT)
                                   40 W + 40 W  into 4 ohm 1 kHz DIN T.H.D. 1%:
                                   25 W + 25 W into 8 ohm 20 Hz — 20 kHz:
    Total Harmonic Distortion: 
                                   0.05% (20 Hz — 20 kHz at —3 dB rated output 8 ohm Load)
    Intermodulation Distortion (at amplitude output equivalent to rated output) :
                                   Below 7 kHz/60 Hz: 1/4 0.03%
    Power Band Width:   10 Hz — 40 kHz (IHF T.H.D. 0.1%)
    Frequency Response: 5 Hz — 150 kHz +0,-3 dB (at 1 W output)
    Output Terminals:    
       Speaker:              Load 4 - 16 ohm (IEC) UK, France, Germany                       
                                  Load 6 - 16 ohm  Asia, USA, Canada, Australia
    Preamplifier Section
    Pre Amplifier Output:
      Maximum Output: 10 V (at 47 k ohm Load)             
      Rated Output:       150 mV
    Input Sensitivity/ Input Impedance: 
      PHONO MM:        2.5 mV / 47 k ohm
      TUNER, AUX
      CD, CD DIRECT   150 mV / 47 k ohm
    RIAA Deviation:      
      PHONO MM:       within ±0.5 dB (20 Hz — 20 kHz)
    General Characteristics
    S/N Ratio (IHFA Weighted):
      PHONO MM:       70 dB (input terminals short-circuited for 2.5 mV input)
      CD DIRECT, CD,
      TUNER, AUX:      96 dB (input terminals short-circuited)
    Tone Control Adjustable Range:
      BASS                100 Hz ±10 dB
      TREBLE             10 kHz ±10 dB

    Versions/Power Requirements
    Germany, France (E2)    /  220V AC 50Hz
    UK (EK), Australia (EA)  /  240V AC 50Hz
    USA (EU), Canada (EC) /  120V 60Hz
    Multiple Asia (E1)          /  110/120/220/240 50/60Hz with voltage selector

    2 x 40 Watt Sinusleistung (4 Ohm),
    2 x 25 Watt Sinusleistung (8 Ohm),
    2 x 66 Watt Musikleistung (4 Ohm),
    2 x 52 Watt Musikleistung (8 Ohm).

    Made in Taiwan

  • Net weight (2.2 lb = 1 kg)
  • 4.9 kg / 10 lb 12.7 oz (10.793 lb)
  • Source of data
  • -- Original prospect or advert
  • Mentioned in
  • -- Original prospect or advert (Denon '89 Hi-Fi Bausteine Katalog)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service Manual model PMA-250 Stereo Pre-Main Amplifier)

 Collections | Museums | Literature

 Forum