Sony TA-D88B

Sony TA-D88

March
1 9 7 8 march 1978
1 9 8 1
Plus
1981+

Probably the most successful audiophile electronic crossover - the TA-D88B sold very well, and in much larger quantities than any model from Pioneer or Accuphase.

Updated in early 1981 to become the ESPRIT TA-D900 with, besides looks, minor layout and PCB differences.
The D88's lowest frequency module (Module 1) starts at 140Hz, a frequency pushed back byt the TA-D900 with the addition of Module 0 which allowed to start at 50Hz.

The specifications between the TA-D88B and the TA-D900 are however exactly identical but the D88B shows even less distortion ;-)
The modules, tagged in blue for the D88B, and in red for the D900, are also identically built ; the eight pots are all 2-gang ALPS.

In Japan, a special module was made available before the D900 came in : the S1. It allowed to start the low crossover at 62,5Hz, 100Hz or 125Hz instead of the 140 / 225 / 280Hz of the normal Module 1.

In Germany, a special module was very briefly offered for the (very few) SS-G7S owners : the 7-1


Nudies of a JP unit here.

Sony TA-D88B, image 1 Sony TA-D88B, image 2 Sony TA-D88B, image 3
Sony TA-D88B specifications
Title Value
System : 24dB/octave filter
Bessel function high-pass and low-pass
DC buffer amp
Bandpass gain : 0dB
Inputs : 1V rated (7V max) / 50kOhm
Outputs : 1V rated (7V max) / 100 Ohm
THD : less than 0,03% at 1V output
less than 0,05% at 5V output
S/N ratio : better than 110dB (1V rated input, A-weighted)
Frequency response : DC...100Khz (+0 / -1dB)
PC : 20W
Dimensions : 48 x 8 x 36,5cm
Weight : 7,4kg.
List price : 130,000¥ (1978...1981)
Plug-in modules : Unit S1 62,5 / 100 / 125Hz (TA-D88B only)
Unit 1 140 / 225 / 280Hz
Unit 2 500 / 800 / 1Khz
Unit 3 1,25 / 2 / 2,5Khz
Unit 4 5 / 8 / 10Khz
Unit 7-1 (DE-only and for SS-G7S only)
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