The Acoustat 4 is an electrostatic speaker. It is part of the Mk-121 series. It was manufactured from 1980 to 1981. In 1980 its price was $2000.
The following models were also produced in the Mk-121 series:
|Acoustat 1 plus 1
Acoustat 2 plus 2
Roy A. Esposito (September 6, 2013): Hello Friends --
This is just to let you know that my email contact
has recently changed. It seems AT&T/Yahoo could no
longer support my very old prodigy.net email address.
For those of you requiring fantastic restorations
and upgrading of Acoustat MK and Spectra Interfaces
and Acoustat Power Amplifiers and Preamplifiers
my new email address is
(please notice the dots/periods between the words)
Email is the preferred method for initial contact with me
for Acoustat Service and questions.
Thank you for your continued friendship, kind comments and reviews,
and support of my work.
All the Best,
Roy A. Esposito
Forum topics on the Acoustat 4
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