ROTEL RX-200A
¥ 35,800 (around the early 1970 s)
Commentary
A four channel stereo receiver with a speaker matrix for the lowest cost.
In the speaker matrix method, the phase difference signal component of the left and right sound of the conventional 2-channel stereo is emitted from the rear speaker. By installing this rear circuit, the sense of direction is expressed.
Two types of speaker output terminals are mounted, and can be connected and disconnected separately by front panel push buttons.
You can also enjoy four channel speaker-matrix playback by switching the switches on the rear panel.
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Model Rating
| Type | FM/AM stereo receiver |
| FM Tuner Section | |
| Received frequency) | 76 MHz to 90 MHz |
| Antenna impedance | 300 Ω equilibrium 75 Ω unbalance |
| Sensitivity | 2.5 μ V (IHF) |
| Harmonic distortion factor (400 Hz, 100% modulation) | mono:0.5% stereo:1% |
| Signal-to-noise ratio | 65 dB or more |
| Image interference ratio | 50 dB or more |
| Spurious response | 80dB |
| Selectivity | 40dB(IHF) |
| SCA suppression ratio | 60dB |
| <AM Tuner Section> | |
| Receiving frequency | 535 kHz to 1605 kHz |
| Sensitivity | 25 μ V (S/N = 20 db) |
| Image ratio | 60dB(1MHz) |
| Intermediate frequency interference ratio | 50dB(1MHz) |
| Signal-to-noise ratio | 50dB |
| Amplifier Unit | |
| Effective power | 10W/10W (8 Ω) |
| Music Power (IHF) | 40W (4 Ω) 26W (8 Ω) |
| Harmonic distortion factor | 0.2% (1 kHz, 8W) |
| Cross modulation distortion factor | 0.35% (8W, 70 hz : 7 khz = 4 : 1) |
| Frequency characteristic | 6 Hz ~ 80 kHz + 0 -3dB (1W) |
| Damping factor | 30 (8 Ω) |
| Rise time | Aux : 4 μ s (10 kHz) |
| Overloading | Phono : 60 mV or more (1 kHz) |
| Phono Equalizer | 50Hz:+7dB 10kHz:-13.5dB |
| Input Sensitivity / Impedance | Phono MAG : 3mV/50k Ω Phono X-TAL : 100mV/2M Ω Aux : 200mV/100k Ω |
| Signal-to-noise ratio | Phono : 60 dB or more Aux : 70 dB or more |
| Residual noise | 1 mV or less |
| <General> | |
| Power supply voltage | 100 VAC, 50Hz/60Hz |
| Power consumption | 65VA |
| External dimensions | Width 440x Height 135x Depth 250 mm |
| Weight | 6.5kg |