Sony TA-F6B

1 9 7 7 september 1977
1 9 8 1 1981

High-end DC intergated amp with ruler-flat frequency response up to 100Khz... but which looks like a nuts'n'bolts steel block.

High-end because, inside, there is a PLPS - lots of power in a 12kg lightweight enclosure !
The F6B is by necessity partly related to the pre-Esprit TA-N86B (same timeframe) and naturally to the lineup that replaced it (TA-F80 / F70 / F60) but was quite affordable (unlike the former) and built in 1970s fashion (unlike the latter).

High-end because the attenuator is a big 6-gang ALPS, high-end because of the SEPP-OCL, LEC transistors and dual-FET circuits.
High-end, too, because the TA-F6B was, alongwith the TA-F5 and TA-F4, the very first audio unit released with a Pulse Locked Power Supply.

Extremely successful in Europe, not as much elsewhere, the TA-F6B was only available in "B" colouring, even in Japan : no TA-F6 (ie. silver in colour) was ever produced.
However, pre-production samples all had a neutral grey color.

It should be noted that the nudie image below either shows a pre-production sample or a special japanese version : the european version has two more and much bigger caps on the power board (left of the PLPS box) and also caps behind the source selector - among other differences...

Nudies of a european TA-F6B, here ; a minty TA-F6B, here and a JP version here.

Sony TA-F6B, image 1 Sony TA-F6B, image 2 Sony TA-F6B, image 3
Sony TA-F6B specifications
Title Value
Power : 2x 100W (20Hz...20Khz, 8 Ohm)
Power bandwidth : 5Hz...35Khz
THD : 0,03% (20Hz...20Khz)
IMD : 0,015%
Damping factor : 50 (1Khz, 8 Ohm)
Phono inputs : 2,5mV / 50kOhm (MM)
0,08mV / 100 Ohm (MC)
Phono overload : 250mV (1Khz)
Line inputs : 150mV / 50kOhm
S/N ratio : 75dB (MC)
85dB (MM)
105dB (lines)
Bass control : 60Hz ±10dB
Treble control : 25Khz ±10dB
Low filter : 6dB/octave below 15Hz
High filter : 6dB/octave above 9Khz
PC : 190W
Dimensions : 43 x 17 x 39cm
Weight : 12kg.
List price : 99,800¥ (1977)
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