DESCRIPTION:
Год выпуска аппарата 1974. Стоимость на момент производства составляла 95,000 ¥
Спецификация:
Model Integrated amplifier
*Main amplifier part*
Circuit system Class B · A class operation switchtable
Whole page direct connection pure complementary SEPP OCL circuit
Dynamic Power (IHF) Class B Operating: 160W (8Ω)
Effective output When both ch operation 20Hz ~ 20kHz: 10W + 10W (8Ω, A-class operation)
60W + 60W (4Ω, when the B-class operation)
50W + 50W (8Ω, when the B-class operation)
1kHz: 10W + 10W (8Ω, A-class operation)
70W + 70W (4Ω, when the B-class operation)
55W + 55W (8Ω, when the B-class operation)

Single ch Operating 1kHz: 10W / ​​10W (8Ω, A-class operation)
90W / 90W (4Ω, when the B-class operation)
60W / 60W (8Ω, when the B-class operation)

Total harmonic distortion A class operation at the time: 0.1% or less (at the time of an effective output)
0.02% or less (at the time of 1W output)
B class operation at the time: 0.1% or less (at the time of an effective output)
0.04% or less (at the time of 1W output)

Intermodulation distortion
(70Hz: 7kHz = 4: 1) A class operation at the time: 0.1% or less (at the time of an effective output)
0.05% or less (at the time of 1W output)
B class operation at the time: 0.1% or less (at the time of an effective output)
0.05% or less (at the time of 1W output)

Power band width
(IHF, both ch driven) A class operation at the time: 5Hz ~ 100kHz
B class operation at the time: 5Hz ~ 70kHz
Frequency characteristic 10Hz ~ 100kHz +0 -1dB
Input sensitivity / impedance A class operation at the time: 345mV / 100kΩ
B class operation at the time: 775mV / 100kΩ
Output terminal Speaker terminal: Two lines
Headphone jack: 4Ω ~ 16Ω
Damping factor 70 (1kHz, 8Ω)
SN ratio (IHF, A network) 100dB
Residual noise 0.8mV (pre + main amplifier, 8Ω)
*Preamplifier section*
Circuit system Equalizer amplifier, microphone amplifier: four-stage direct connection NFB type amplifier
Tone control amplifier: 6 stone amplifier
Input sensitivity / impedance Phono1: 3mV / 30kΩ, 50kΩ, 100kΩ
Phono2: 3mV / 50kΩ
Mic: 2.5mV / 100kΩ
Tuner, Aux1 / 2, Tape PB A / B: 120mV / 50kΩ
Output level / impedance Tape rec outA / B: 120mV / 2kΩ
Pre out: 775mV / 2kΩ
Phono maximum permissible input 310mVrms (870mVp-p, 1kHz, strain rate of 0.1%)
Harmonic distortion (Pre out,
At the rated output, 20Hz ~ 20kHz) Phono1 / 2: 0.1% or less
Tuner, Aux1 / 2, Tape: 0.02% or less
Frequency characteristic Phono (RIAA deviation): 30Hz ~ 15kHz ± 0.2dB
Tuner, Aux1 / 2, Tape PB: 10Hz ~ 50kHz +0.5 -1dB
SN ratio (IHF, Closed Circuit
A network) Phono1 / 2: 80dB
Mic: 70dB
Tuner, Aux1 / 2, Tape: 90dB
Tone control Bass: ± 15dB (50Hz), turnover frequency: 250Hz, 500Hz
Treble: ± 10dB (10kHz), turnover frequency: 2.5kHz, 5kHz
Filter Low: 20Hz / 70Hz, 12dB / oct
High: 6kHz / 12kHz, 6dB / oct
Loudness control Continuous loudness that conforms to equal loudness curve
Audio muting -20dB
*General*
Accessory circuit Transistor protection circuit (ASO detection limiter system)
Speaker protection circuit (voltage detection relay drive system)
Operation switch (A grade · B class operation selector switch)
Tape dubbing switch
Continuous loudness
Tone jump
Semiconductor used Transistor: 61 pieces
Zener diode: six
Diode: 30 pieces
AC Outlets Power switch interlock: Two lines, max200W
Power switch non-interlocked: Two lines, max200W
Power-supply voltage AC100V, 50Hz / 60Hz
power consumption 140W (rated, Electrical Appliance and Material Control Law)
External dimensions Width 436 × height 144 × depth 323mm
Weight 14.0kg

Аппарат покупался на заказ моему хорошему знакомому.