TRIO KR-3200
¥ 49,900 (around 1973)
Commentary
An AM/FM stereo receiver that employs a double-switching and de-modulator system.
The multi-section of the tuner section employs a double switching and de-modulator system.
It is designed to cancel the leakage signal by making the outputs of the main switching circuit and the auxiliary switching circuit symmetrical, taking them in opposite phases, and adding the outputs of both switching circuits.
This prevents degradation of the separation caused by adverse effects on the high-frequency range of the SCA filter and phase shift at the IF stage.
The pre-main amplifier section is equipped with a sound quality adjustment mechanism such as ± 10 tone control by clicking.
It also has an MIC terminal that allows you to enjoy microphone mixing.
Two types of speaker terminals are installed, and A and B can be used independently or in the A + B position.
.JPG)
Model Rating
| Type | Solid State AM/FM Stereo Receiver | ||||
| Amplifier Unit | |||||
| Music Power (IHF) | 60W (4 Ω) 42W (8 Ω) |
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| Effective power |
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| Total harmonic distortion factor (8 Ω) | Rated output : 1.0% or less -3dB at rated output : 0.2% or less |
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| Intermodulation distortion factor (8 Ω) | Rated output : 1.0% or less -3dB at rated output : 0.2% or less |
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| Frequency characteristic | 25 Hz to 35 kHz ± 2 dB | ||||
| Output Bandwidth (IHF) | 25 Hz to 25 kHz | ||||
| Damping factor | 50 (8 Ω) | ||||
| Input Sensitivity / Impedance | Phono : 3mV/50k Ω AUX : 180mV/50k Ω MIC : 2mV/30k Ω Tape Play : 200mV/45k Ω |
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| Recording and re-outputting PIN/DIN | 180mV/30mV | ||||
| Signal-to-noise ratio | Phono:63dB AUX:64dB MIC:55dB Tape Play:75dB |
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| Tone control | 100 Hz : + / - 10 dB 10 kHz : ± 10 dB |
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| High filter | 10 kHz, -10dB | ||||
| Loudness control | 100Hz:+10dB | ||||
| FM Tuner Section | |||||
| Receiving frequency | 76 MHz to 90 MHz | ||||
| Antenna impedance | 300 Ω Balanced Type / 75 Ω Balanced Type | ||||
| Sensitivity | 2.3 μ V/84MHz (IHF) | ||||
| Chinese arrowhead's slope | 5 μ V : 45 dB 10 μ V : 60 dB 50 μ V : 63 dB |
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| Distortion Factor (400 Hz, 100% modulation) | Stereo : 0.9% or less Mono : 0.5% or less |
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| SN ratio (100% modulation, 100 μ V input) | 63 dB or more | ||||
| Capture ratio | 3.5dB(IHF) | ||||
| Selectivity | 50 dB or more (IHF) | ||||
| Image ratio | 60 dB or more | ||||
| IF interference ratio | 90 dB or more | ||||
| AM suppression ratio | 60 dB or more | ||||
| Harmonic spurious ratio | 80 dB or more | ||||
| Separation (1 kHz) | 35 dB or more | ||||
| Band Separation (50 Hz to 8 kHz) | 25 dB or more | ||||
| Subcarrier suppression ratio | 45 dB or more | ||||
| <AM Tuner Section> | |||||
| Receiving frequency | 520 kHz to 1610 kHz | ||||
| Sensitivity | 25 μ V (IHF) | ||||
| Selectivity | 30 dB or more (IHF) | ||||
| Image ratio | 45dB | ||||
| IF interference ratio | 35 dB or more | ||||
| <General> | |||||
| Pwer | 100 VAC / 117 V, 50Hz/60Hz | ||||
| Rated power consumption | 75W | ||||
| External dimensions | Width 435x Height 144x Depth 346 mm | ||||
| Weight | 9.2kg | ||||