AM/FM HiFi-Stereo Receiver RX-400A

Rotel, The, Co., Ltd.; Tokyo

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  • Year
  • 1973 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 150480

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

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Superheterodyne (common)
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 100; 120; 220; 240 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 50 W (60 W max.)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: AM/FM HiFi-Stereo Receiver RX-400A - Rotel, The, Co., Ltd.; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 470 x 135 x 275 mm / 18.5 x 5.3 x 10.8 inch
  • Notes

  • An AM/FM stereo hi-fi receiver with a stereo tuner covering MW and FM and an amplifier (the preamplifier and power amplifier sections can be separated) with power output of 2 x 25W RMS into 8 ohms. Signal Strength meter, Bass and Treble tone controls, switches for speakers A and B, Loudness, Filter, Mono/Stereo. Inputs for phono and Aux and Input/Outputs for Tape, AC outlet.

    Specification  
    Continuous Power Output 25W per channel, min. RMS
    both channels driven into 8Ω
    or 30W per channel
    both channels driven into 4Ω
    from 20 - 20,000Hz with no more than 0.5% THD
    Intermodulation Distortion No more than 0.5%
    Output: Speaker
           Headphone    		 A, B (4 - 16Ω), A + B (8 - 16Ω)
    (4 - 16Ω)
    Damping Factor 32 (20-20,000Hz, 8Ω)
    Pre Amplifier Section  
    Input Sensitivity/Impedance  
     PHONO
     AUX
     TAPE IN    		 (MAG) 2.5mV/45kΩ, (CER) 150mV/240kΩ
    150mV/35kΩ
    150mV/35kΩ, DIN Connector 150mV/35kΩ
    Output Level/Impedance
     (5mV PHONO input)    		  
     TAPE OUT 300mV/2.6kΩ, DIN connector 100mV/90kΩ
    Frequency Response  
     PHONO (RIAA Equalization)
     AUX, TAPE IN    		 30Hz-15,000Hz ±0.5dB
    10Hz-30,000Hz ±1dB
    High Filter 10kHz (6dB/act.)
    FM Tuner Section  
    Usable Sensitivity  
     Mono
     Stereo    		 11.2dBf (2.0µV/300Ω)
    20.0dBf (5.5µV/300Ω)
    S/N Ratio (at 65dBf) Mono 68dB, Stereo 62dB
    Distortion (at 65dBf)  
     100Hz and 1kHz
     6kHz    		 0.2% (mono), 0.3% (stereo)
    0.4% (mono), 0.5% (stereo)
    Frequency Response 30Hz-15,000Hz + 0.2dB, -2dB
    Capture Ratio 2.0dB
    Alt. Channel Selectivity 50dB
    Stereo Separation 40dB (1kHz), 30dB (30Hz-15kHz)
    Antenna Input 300Ω balanced, 75Ω unbalanced
    AM Tuner Section  
    Sensitivity 250µV/m (IHF, Ferrite antenna)
    12.5µV (IHF, ext. antenna)
    Selectivity 25dB
    S/N Ratio 50dB
    Antenna Built-in ferrite loopstick antenna

    Versions/Power Requirements
    120V AC 60Hz
    220V AC 50Hz
    240V AC 50Hz
    100, 120, 220, 240V AC 50/60Hz switchable
     
    Power Consumption : 150 watts (Max.)

    AM/FM-Stereo-Receiver mit 2 x 25 Watt Sinus an 8 Ohm.
    Frequenzbereich 10 - 30.000 Hz, Leistungsbandbreite 20 - 20.000 Hz.
    Hinterbandkontrolle, Bässe und Höhen für beide Kanäle getrennt regelbar. Vor- und Endverstärker trennbar.

  • Net weight (2.2 lb = 1 kg)
  • 7 kg / 15 lb 6.7 oz (15.419 lb)
  • Source of data
  • -- Original prospect or advert
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Owner's Manual RX-400A)
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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