AKAI AA-5800
¥ 79,800 (around 1973?)
Commentary
All stages are directly connected ITL-OTL-OCL system circuit is adopted for the power amplifier section, and PNP-NPN-NPN3-stage directly connected circuit is adopted for the equalizer of the preamplifier section.
In addition, a two stage IC directly connected circuit is used for the microphone amplifier.
Transistor and speaker protection circuit are mounted.
Four tape decks can be connected at the same time, a tape recording selector switch is installed, and mixing by microphone level control is also possible.
Model Rating
| Type | Pre-main amplifier | ||||
| Output |
|
||||
| Harmonic distortion factor | Not more than 0.1% | ||||
| Output Bandwidth (IHF) | 20 Hz ~ 25 kHz (0.3%) | ||||
| Frequency characteristic | 10 Hz to 50 kHz -3dB | ||||
| Input Sensitivity / Impedance | Phono1, 2 : 3mV/50k Ω AUX : 150mV/50k Ω Main : 775mV/30k Ω Tape Monitor (Din/Pin) : 180mV/30k Ω MIC : 1.2mV/50k Ω |
||||
| Signal-to-noise ratio | Phono:65dB AUX:80dB |
||||
| Residual noise | 0.6 mV or less | ||||
| Channel separation (1kHz) |
Phono:60dB AUX:60dB |
||||
| Equalizer | RIAA ± 1 dB | ||||
| Tone control | Bass : 100 Hz ± 10 dB Treble : 10 kHz ± 10 dB |
||||
| Loudness control (Volume -30dB) |
100Hz:+7dB 10kHz:+4dB |
||||
| Filter | High Filter : 10 kHz -7dB (12dB/oct.) Low Filter : 50 Hz -12dB (12dB/oct.) |
||||
| Semiconductor used | Transistor : 42 Diode : 10 pcs S. C. R. : 3 Varistor : 2 pieces IC : 2 |
||||
| 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 | 11.5kg |