AM/FM Stereo Tuner / Stereo Amplifier RMX-70

Roland Electronics Co. Ltd., Rotel; Tokyo

Data
Forum
Pictures
Collections

  • Year
  • 1981
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 308612

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Superheterodyne (common)
  • Wave bands
  • Broadcast, Long Wave and FM or UHF.
  • Power type and voltage
  • Line plus power jack, mostly with battery or storage battery / 120 or 220 or 240 / DC 12+24 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 40 W (undistorted)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: AM/FM Stereo Tuner / Stereo Amplifier RMX-70 - Roland Electronics Co. Ltd.,
  • Shape
  • Book-shelf unit.
  • Notes

  • A combined MW/VHF stereo tuner and 2 x 20 watt stereo amplifier, a component in the Rotel Micro System 70 along with the Rotel RMD-70 Stereo Cassette Tape Deck. It is powered by AC mains or by an optional 12 volt battery powered Rotel RV-C1 DC-DC converter.

    On the rear, an AM ferrite bar antenna, connections for FM and AM aerials and on some  models a 75Ω coax FM aerial socket, RCA sockets for Phono input, Tape In and Out, terminals for one pair of loudspeakers, a socket for a Rotel RV-C1 DC-DC converter and a power outlet socket for powering the RMD-70 Stereo Cassette Deck. On the front, the tuner has a rotary tuning control, an FM Stereo indicator, 3 LED Signal Strength indicators and an illuminated dial pointer, the amplifier has press button switches for Power and Tape Monitor, rotary controls for Bass, Treble, Balance and Volume, a rotary Function switch (LW, MW, FM, FM Mute Off, Phono) and a Headphone jack.

    Continuous Power Output :
    20 watts per channel, min. RMS both channels driven into 8Ω
    from 20Hz to 20kHz with no more than 0.08% Total Harmonic Distortion
    Intermodulation Distortion ....... :  no more than 0.08% at rated output
    Damping Factor .......................:  45 (20Hz to 20kHz, 8Ω)
    Input Sensitivity/Impedance :
                              Phono ............:  2.5mV/47kΩ
                              Tape In ...........:  150mV/37kΩ
    Frequency Response :
                              Phono ............:  30Hz - 15kHz, ±0.3dB (RIAA Standard)
                              Tape In ...........:   5Hz - 70kHz, +0dB, -1.0dB
    Signal to Noise Ratio :
                              Phono ............:  82dB
                              Tape In ...........:  90dB
    Output Loudspeaker ................:  8 - 16Ω
               Headphones  ................:  4 - 16Ω

    Versions/Power Requirements
    120 V AC 60Hz
    220 V AC 50-60Hz
    240 V AC 50-60Hz
    120/220/240 V AC 50-60Hz Switchable (Not available in UK, Canada and Scandinavia)

    See also the Rotel RMX-70L MW/LW/FM Stereo Tuner / Stereo Amplifier which additionally has LW.

  • Price in first year of sale
  • 180.00 USD
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Technical Manual for the RMX-70 & RMX-70L dated June 1981)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Owner's Manual for the Micro System 70, RMX-70/RMX-70L & RMD-70)
  • Author
  • Model page created by Howard Craven. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum