Precision audio component / pre-main amplifier PMA-737

Denon (Marke / brand)

  • Year
  • 1984
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 143972

Click on the schematic thumbnail to request the schematic as a free document.

 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
  • 120 W (170 W max.)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Precision audio component / pre-main amplifier PMA-737 - Denon Marke / brand
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 434 x 112 x 393 mm / 17.1 x 4.4 x 15.5 inch
  • Notes
  • A stereo hi-fi integrated amplifier in a silver or black metal case with power output of 2 x 60 watts rms into 8 ohms. Inputs for Phono (MM or MC), Tuner, DAD, Video/Aux and inputs/outputs for 2 Tape recorders. Terminals for 2 pairs of loudspeakers and a jack for headphones. Two switched and one unswitched AC outlets on the USA/Canada model.

    Specification
    Power Amplifier Section
    Rated Output Power:
         Both channel driven (TUNER —> SP OUT)
         60 Watts minimum rms per channel into 8 ohm
         with less than 0.05% total harmonic distortion from 20 Hz to 20 kHz.
         65 W + 65 W (4 ohm Load) 20 Hz to 20 kHz at THD 0.05%
         1 kHz (4 ohm Load) 85 W + 85 W (at THD 1.0%)
    Total Harmonic Distortion:  
         0.05% at rated power (20 Hz — 20 kHz, 8 ohm Load)
         0.007% at —3 dB power (20 Hz — 20 kHz, 8 ohm Load)
    Intermodulation Distortion:
         7 kHz/60 Hz: 1/4 Below 0.005%
         (at amplitude output equivalent to rated output)
    Output Band Width: 5 Hz — 80 kHz (IHF THD 0.1%)
    Output Terminals: Speaker: A & B Load 4 — 16 ohm,  A + B Load 8 — 16 ohm

    Pre-Amplifier Section
    Maximum Output:     10 V (at 47 kohm load)
    (REC OUT Terminal): Rated Output: 150 mV
    Total Harmonic Wave Distortion: Below 0.002% (at 1 kHz, 8 V output)
    Input Sensitivity/Impedance:
        PHONO  MM 2.5 mV / 47 kohm, MC 200 µV / 100 ohm
        LINE             150 mV / 30 kohm
    S/N Ratio (IHF A Network):  
        PHONO MM 86 dB  (input terminals short-circuited for 2.5 mV input)
        MC 70 dB (input terminals short-circuited for 250 pV input)
        LINE 106 dB (input terminals short-circuited)

    Versions/Power Requirements
    USA, Canada        / 120V AC 60Hz
    France, Germany   / 220V AC 50Hz
    UK                       / 240V AC 50Hz
    Asia                     / 110/120/220/240V AC 50/60Hz with voltage selector

    Non-NFB Vollverstärker mit 2 x 55 Watt Sinus an 8 Ohm.
    Gehäuseausführung Silber oder Schwarz.

  • Net weight (2.2 lb = 1 kg)
  • 8.7 kg / 19 lb 2.6 oz (19.163 lb)
  • Source of data
  • -- Original prospect or advert
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Operating Instructions (USA) PMA-737 Pre-Main Amplifier)
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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