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－Check the voltage of the power supply－
Please check the power supply voltage in the product specifications.
In most cases, the power supply voltage is compatible with AC 100V. In that case, if the power supply voltage in your area is 100V to 110V, there should be no problem. However, please note that if the power supply voltage is 120V or higher, you will need a step-down transformer.
-Product Condition-
Item has undergone long-term overhaul and restoration.
All electrolytic capacitors, film capacitors, and all small transistors (including driver transistors) have been replaced with new high-quality Japanese or American components.
Body has been cleaned of dirt and rust.
Amplifier operates properly, producing rich, clean, and clear sound.
Wood case is in very good condition (see photos).
Power cable is original and in good condition.
Potentiometers have been cleaned and lubricated.
All ceramic capacitors have been replaced with higher-quality parts to reduce distortion.
Driver and power transistors have been inspected and are in good condition.
Signal line resistors have been replaced with higher-quality components.
Filter capacitor has been upgraded to 22uF and diode bridge upgraded to 25A.
-Specifications-
Type: Stereo Integrated Amplifier
Main amplifier section:
Music power (IHF): 140W (4Ω), 100W (8Ω)
Rated output: 50W + 50W (4Ω), 45W + 45W (8Ω)
Total harmonic distortion: ≤0.4% (rated output)
Intermodulation distortion (SMPTE 60Hz:7kHz=4:1): ≤0.4%
Power bandwidth (IHF): 10Hz–40,000Hz (8Ω)
Frequency response: 10Hz–70,000Hz ±1dB
Channel separation: ≥50dB (1kHz, rated output)
Hum and noise (IHF): ≥100dB
Input sensitivity/impedance (rated output, 1kHz): 1V / 50kΩ
Damping factor: 20 (8Ω load)
Load impedance: 4Ω–16Ω
Preamplifier section:
Output voltage: max 4V / rated 1V
Total harmonic distortion: 0.1% (rated output voltage)
Frequency response: 15Hz–50,000Hz (+0.5 / -1.5dB)
Channel separation: Phono 50dB / AUX 50dB
Hum and noise (IHF): Phono1/2 ≥80dB, MIC ≥80dB, Tuner/AUX ≥85dB
Input sensitivity/impedance (1kHz): Phono1 2mV/50kΩ, Phono2 2mV/30–100kΩ, MIC 2mV/50kΩ, Tuner/AUX 180mV/100kΩ, Tape inputs 180mV
Recording output: 180mV (Pin), 30mV (DIN)
Tone control: Bass 20Hz +12/-8dB, Mid 1kHz/2kHz ±5dB, Treble 20kHz +12/-8dB
Tone selector: Midrange defeat / 1kHz / 2kHz
Loudness: +8dB (50Hz), +3dB (10kHz)
Filters: High filter 10kHz -8dB (12dB/oct), Low filter 50Hz -8dB (12dB/oct), Muting -20dB
-General-
Power supply: 100V 50/60Hz
Power consumption: 400W max
Dimensions: 460 × 140 × 305 mm
Weight: 12.6 kg
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