Sony TA-F555ESG

Sony TA-F333ESG

1 9 8 9 1989

Japan-only transitional unit, prelude to the excellent ESL, ESA and ultimate ESJ versions of the other bestselling lineup of integrated amplifiers : Yamaha CA-1000 series for the 1970s, Sony TA-F555ESX between 1985 and the early 1990s.

The TA-F555ESG was another step in refining the formula inaugurated with the original TA-F800ES, aka TA-F555ESX in Japan.

A G-chassis (G for Gibraltar), staple Spontaneous Twin Drive drive, high Gm power transistors, a bigga 316VA transformer, two vibration-free 12,000µF / 63V / 85° Nippon Chemicon coated caps (for the power-supply ; coated à la TA-NR1) and 24kg made up for a very healthy and reliable mid-end integrated amplifier which, like all of Sony's ES integrated amps from 1965 onward sold extremely well.

As always in Sony's 1980s / 1990s integrated amps : generous heatsinking, Elna and Nichicon select parts, copper bus bars, solid steel chassis, thick aluminium front finished and anodized to perfection and extruded aluminim knobs.

The TA-F333ESG sibling is basically the same, visually identical, but with less available power, only four caps for the entire power-supply and output stage (instead of two + four), no coating/damping of said caps and a bare aluminium heatsink (vs. black anodized).

Minus the balanced i/os, the set of functions and most of the layout is exactly equivalent to the contemporary but export-only TA-E80ES preamp, even the massive aluminium-turned input and attenuator knobs are equivalent.

Sony TA-F555ESG, image 1 Sony TA-F555ESG, image 2 Sony TA-F555ESG, image 3
Sony TA-F555ESG specifications
Title Value
Continuous RMS power, 4 Ohm : 2x 180W (4 Ohm, 20Hz...20Khz, F555ESG)
2x 140W (4 Ohm, 20Hz...20Khz, F333ESG)
Continuous RMS power, 6 Ohm : 2x 150W (6 Ohm, 20Hz...20Khz, F555ESG)
2x 120W (6 Ohm, 20Hz...20Khz, F333ESG)
Continuous RMS power, 8 Ohm : 2x 120W (8 Ohm, 20Hz...20Khz, F555ESG)
2x 105W (8 Ohm, 20Hz...20Khz, F333ESG)
Peak power, 1 Ohm : 1x 550W (1 Ohm, F555ESG)
Power bandwidth : 10Hz...100Khz (8 Ohm, 60W, 0,02% THD)
THD : 0,002% (10W / 8 Ohm)
IMD : 0,004% (8 Ohm)
Frequency response : 2Hz...200Khz (+0 / -3dB)
± 0,2dB (RIAA)
Damping factor : ?
Slew rate : ?
Residual noise : ?
S/N ratio : 105dB (line)
87dB (MM)
70dB (MC, F555ESG)
68dB (MC, F333ESG)
Inputs : phono MM (2,5mV / 50kOhm)
phono MC 40 Ohm (170µV / 1kOhm)
phono MC 3 Ohm (170µV / 100 Ohm)
line (150mV / 50kOhm)
Outputs : rec out (150mV / 1kOhm)
headphones (25mW / 8 Ohm)
adaptor out (? / ?)
100Hz bass control : +4dB...-3,5dB (200Hz turnover)
+6dB...-5dB (400Hz turnover)
10Khz treble control : +7dB...-8dB (3Khz turnover)
+4dB...-5dB (6Khz turnover)
Subsonic filter : 6dB/octave below 15Hz
PC : 300W (F555ESG)
270W (F333ESG)
Dimensions : 47 x 17 x 43,5cm (F555ESG)
47 x 16,5 x 43,5cm (F333ESG)
Weight : 24,5kg. (F555ESG)
21,2kg. (F333ESG)
Finish : anodized black aluminium
List price : 128,000¥ (F555ESG, 1989)
79,800¥ (F333ESG, 1989)
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