SONY TA-F3
¥ 48,000 (around 1976)
Commentary
While the circuit technology of the amplifier stage is becoming more complete, the power supply is the key to the improvement of sound quality.
A new FET buffer power supply is adopted to improve crosstalk between channels.
Pure complimentary service all-stage direct-coupled circuit using dual transistors with uniform characteristics for differential amplifier stage is adopted.
Equipped with a power meter that can directly read from 0.01W to 100W.
It is equipped with self-defeat tone control and muting switch that can obtain flat frequency characteristics in the center position.
Model Rating
| Type | Stereo pre-main amplifier |
| Effective output (both channel operation) | 1 kHz : 55W + 55W (8 Ω) 20 Hz to 20 kHz : 50W + 50W (8 Ω) |
| Dynamic Power (IHF) | 150W (8 Ω) |
| Output Band Characteristics (IHF, 8 Ω) | 3 Hz to 50 kHz |
| Harmonic distortion factor | 0.08% or Less (Effective Output) 0.05% or Less (at 1W Output) |
| Intermodulation distortion factor (60 hz : 7 khz = 4 : 1) | 0.08% or Less (Effective Output) 0.05% or Less (at 1W Output) |
| Damping factor (1 kHz, 8 Ω) | 40 or more |
| Phono maximum allowable input (1 kHz) | 200mV |
| Tone control (Turnover frequency in parentheses) |
Bass (250 Hz) : 100 Hz ± 9 dB Treble (5 kHz) : 10 kHz ± 6.5 dB |
| Filter | Low : 30 Hz or less, 6dB/oct. |
| Loudness control | 50Hz:+13dB 10kHz:+2.5dB |
| Power consumption | 120W |
| External dimensions | Width 410x Height 145x Depth 295 mm |
| Weight | 8.7kg |
| Sold Separately | Rack Handle AH-4 (1 set, ¥ 2,500) |