SONY TA-F500
¥ 32,000 (released in 1992)
Commentary
Pre-main amplifier with discrete power circuit.
S. T. D. power supply (Spontaneous Twin Drive) is used for the power supply part.
In this power supply circuit, the rectifying circuit to the power amplifier section is separated into the A-class stage and the power stage. By suppressing interference between the A-class stage and the power stage, sound quality is improved.
It uses a discrete power circuit that uses audio transistors.
It uses a direct link system that minimizes internal wiring materials and realizes smooth signal flow from input to output.
It has a source direct function.
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Model Rating
| Type | Pre-main amplifier |
| Maximum Practical Power (EIAJ) | 100W + 100W (6 Ω) |
| Effective output (20 Hz to 20 kHz) | 80W + 80W (4 Ω) 70W + 70W (6 Ω) 60W + 60W (8 Ω) |
| Harmonic distortion factor | 0.008% (8 Ω at 10W output) |
| Cross modulation distortion factor | 0.01% (at rated output, 8 Ω, 60 Hz : 7 khz = 4 : 1) |
| Frequency characteristic | Phono MM : RIAA curve ± 0.2 dB Line system : 2 Hz ~ 200 kHz + 0 -3dB |
| Signal-to-noise ratio | Phono MM:87dB Line system : 100 dB |
| Input Sensitivity / Impedance | Phono MM : 2.5mV/50k Ω Line system : 150mV/50k Ω |
| Output Level / Impedance | Rec out : 150mV/2k Ω Headphone : 25mW/8 Ω |
| Tone control | Bass : ± 10 dB (100 Hz) Treble : ± 10 dB (10 kHz) |
| Suitable speaker impedance | 4 Ω ~ 16 Ω (AORb) 8 Ω ~ 16 Ω (A + B) |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 145W |
| External dimensions | Width 430x Height 135x Depth 372 mm |
| Weight | 8.9kg |