ONKYO Integra A-722
¥ 88,000 (around 1972?)
Commentary
This pre-main amplifier was released for those who want a higher level of musical satisfaction.
All stages of PURECON are directly connected to the power amplifier, and each element is carefully selected.
Model Rating
| Type | Pre-main amplifier | ||
| Power Amplifier Unit | |||
| Circuit system | Pure Con All stages directly connected circuit | ||
| Rated Output (8 Ω, 1 kHz) | 52W+52W 65W/65W |
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| Dynamic Power (IHF8 Ω, 1 kHz) | 150W | ||
| 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 | 27.5dB | ||
| Preamplifier Section | |||
| Input Sensitivity / Impedance |
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| Total Harmonic Distortion Factor (1 v, 1 khz) | Not more than 0.03% | ||
| RIAA deviation (30 Hz to 15 kHz) | Within ± 0.5 dB | ||
| Maximum allowable input (1kHz/10kHz, Input Sensitivity NOR) |
RMS:300mV/1.4V P-P:850mV/3.9V |
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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 373 mm | ||
| Weight | 10.5kg | ||