TRIO KR-3130X
¥ 56,800 (around 1971)
Commentary
quadrix 4-channel receiver that allows you to listen to FM stereo broadcast transmission on 4 channels.
It is equipped with a matrix system quadrixer which can listen to all FM stereo broadcast transmission in 4 channels.
By using elements such as high-gain ICs and low-noise FETs, selectivity characteristics are improved.
Equipped with SCA filter.
Equipped with a pure electronic transistor protection circuit.
Model Rating
Type | FM/AM Receiver | ||||
Amplifier Unit | |||||
Circuit type | Built-in matrix type 4-channel quad processor | ||||
Music Power (IHF) | 50W (4 Ω) 42W (8 Ω) |
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Effective power |
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Harmonic distortion factor | 0.8% or Less (Rated Output) 0.2% or less (-3dB at rated output) |
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Cross modulation distortion factor | 0.8% or Less (Rated Output) 0.2% or less (-3dB at rated output) |
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Frequency characteristic | Main input : 15 Hz to 50 kHz ± 1.5 dB Aux : 20 Hz to 40 kHz ± 1.5 dB |
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Output Bandwidth (IHF) | 20 Hz to 20 kHz | ||||
Damping factor | 50 (8 Ω) | ||||
Input Sensitivity / Impedance | Phono1, 2 : Mic : 3.0mV/100k Ω Aux, Tape play : 150mV/30k Ω Main in:100mV |
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Recording and re-output (at rated output) | Pin:150mV Din30mV |
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SN ratio (rated input) | Phono1, 2 : 60 dB Mic:58dB Aux, Tape play : 75 dB |
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Tone control | ± 10 dB (100 Hz) ± 10 dB at 10 kHz |
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High filter | -10dB(10kHz) | ||||
Loudness control | +10dB(100Hz) +5dB(10kHz) |
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FM Tuner Section | |||||
Antenna impedance | 300 Ω balanced / 75 Ω unbalanced | ||||
Sensitivity (IHF) | 2.0 μ V | ||||
S/N | 60 dB or more | ||||
Distortion Factor (400 Hz, 100% modulation) | Stereo : 0.8% or less Mono : 0.5% or less |
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Capture Ratio (IHF) | 4.0dB | ||||
Selectivity (IHF) | 45 dB or more | ||||
Image ratio | 60 dB or more | ||||
IF Rejection | 100dB | ||||
AM suppression | 45 dB or more | ||||
Harmonic spurious response | 70 dB or more | ||||
Stereo separation | 30 dB or More (1 kHz) 20 dB or More (10 kHz) |
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Subcarrier suppression | 40 dB or more | ||||
Front end | 1 FET, 3 Series Varicon | ||||
IF Stage | 1IC | ||||
<AM Tuner Section> | |||||
Antenna | Built-in high sensitivity ferrite bar antenna | ||||
Sensitivity (IHF) | 25 μ V | ||||
Selectivity (IHF) | 25dB | ||||
Image ratio | 45 dB or more | ||||
IF Rejection | 35 dB or more | ||||
Front end | Double Variator | ||||
<General> | |||||
Accessory function | Tape monitor Noise filter Loudness control |
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Semiconductor used | Transistor : 32 FET : 1 IC : 1 Diode : 31 Units |
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Pwer | 100 VAC / 117 V, 50Hz/60Hz | ||||
Power consumption | 85W (maximum output) 20W (no signal) |
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External dimensions | Width 424x Height 133x Depth 314 mm | ||||
Weight | 7.5kg |