AKAI AA-5500
¥ 57,500 (around 1973?)
Commentary
SEPP-ITL--ITL-OTL system circuit directly connected to all stages to achieve high output with low distortion factor.
An ICZ-stage direct-coupled circuit is also used for the phono amplifier.
Four tape decks can be connected at the same time, and a microphone jack with level control, muting switch, bus treble control, high / low cut, and loudness switch are installed.
Built-in power transistor protection circuit allows single use of pre-main and main.
Model Rating
| Type | Pre-main amplifier | ||||
| Output |
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| Harmonic distortion factor | Not more than 0.05% | ||||
| Output Bandwidth (IHF) | 20 Hz to 45 kHz (0.8%) | ||||
| Frequency characteristic | 20 Hz to 50 kHz -3dB | ||||
| Input Sensitivity / Impedance | Phono1, 2 : 3mV/50k Ω AUX : 150mV/50k Ω Main : 775mV/50k Ω Tape Monitor (Din/Pin) : 150mV/30k Ω MIC : 3mV/50k Ω |
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| Signal-to-noise ratio | Phono:65dB AUX:80dB |
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| Residual noise | 0.6 mV or less | ||||
| Channel separation (1kHz) |
Phono:60dB AUX:60dB |
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| Equalizer | RIAA ± 1 dB | ||||
| Tone control | Bass : 100 Hz ± 10 dB Treble : 10 kHz ± 10 dB |
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| Loudness control (Volume -30dB) |
100Hz:+7dB 10kHz:+4dB |
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| Filter | High Filter : 10 kHz -7dB (12dB/oct.) Low Filter : 50 Hz -12dB (12dB/oct.) |
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| Semiconductor used | Transistor : 18 Diode : 10 pcs S. C. R. : 1 piece Varistor : 2 pieces IC : 5 |
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| Power supply voltage | 100 VAC ~ 240 VAC 6-Step Switching Type, 50Hz/60Hz | ||||
| Power consumption | 300W | ||||
| External dimensions | Width 432x Height 143x Depth 330 mm | ||||
| Weight | 9.9kg |