ONKYO Integra A-755
¥ 54,800 (around 1971?)
¥ 60,000 (around 1972)
Commentary
This pre-main amplifier has been improved based on excellent circuit technology and audition results in pursuit of high musical satisfaction.
The equalizer amplifier uses a push-pull circuit to achieve an allowable input of 650 mV, and the phono gain is a 3-step switching type that can be set according to the cartridge.
Equipped with a protection circuit.
Model Rating
| Type | Pre-main amplifier | ||
| Power Amplifier Unit | |||
| Circuit system | Pure complimentary service all-stage direct connection circuit | ||
| Rated Output (1 kHz) | 26W + 26W (8 Ω) 33W/33W (8 Ω) |
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| Dynamic Power (IHF, 1 kHz) | 82W (8 Ω) | ||
| Total harmonic distortion rate (1 kHz) | 0.1% or Less (at Rated Output) 0.03% or less (at 10W output) |
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| Power Band With (IHF, -3dB, THD 0.2%) | 10 Hz to 100 kHz | ||
| Signal-to-noise ratio (IHF A network) | 110dB | ||
| Damping Factor (DC ~ 20 kHz, 8 Ω) | 80 | ||
| Load impedance | 4 Ω ~ 16 Ω | ||
| Rated input voltage / impedance (10 Hz to 50 kHz) | 1V/100k Ω | ||
| Gain | 24dB | ||
| Preamplifier Section | |||
| Input Sensitivity / Impedance |
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| Total harmonic distortion factor | 0.03% or Less (1 kHz at 1 V output) | ||
| RIAA deviation | 30 Hz to 15 kHz ± 0.5 dB or less | ||
| Maximum allowable input (1kHz/10kHz, Input Sensitivity NOR) |
RMS:230mV/1.1V P-P:650mV/3.1V |
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| S/N (IHF A network) | Phono1, Phono2 : 75 dB Tuner, AUX, Play : 90 dB |
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| Tone Control (2 db Step Type) | Bass : ± 10 dB at 100 Hz, F.SHIFT 400 Hz Treble : ± 10 dB at 10 kHz, F.S HIFT2 kHz |
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| Turnover frequency | Bass : 125 Hz, 400 Hz Treble : 2 kHz, 8 kHz |
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| Filter | Low : 30 Hz, 6dB/oct. High : 7 kHz, 6dB/oct. |
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| <General> | |||
| External dimensions | Width 423x Height 136x Depth 358 mm | ||
| Weight | 8.5kg | ||
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