On Wed, 17 Dec 2014 09:47:45 -0800 (PST), Christian Best
wrote:
hey all,i wanna convert this plate to a stereo solid state version,
im guessing id need a power amp to send signal to the driver and i plan on putting piezo pick up's on it, so i'll also need a for of mic pre right?to send the reverberation signal back into daw.
any recommendation's of driver amp or pre's used to do this job would be greatly appreciated,,
regards
christian best
--Oh these EMTs. I wish there existed an "Anti-EMT Plugin" today
Anyhow, turntables and 140 plates were battlehorses of EMT. Later came
the transportable EMT 240 gold foil plate (it seems that people didn't
like it as the as the 140), followed by electronic and digital
reverbs. The digital 250 was priced about 30 thousand Deutsch Marks
which was very much in that time. Universal Audio makes an
emulation:--
http://www.uaudio.com/store/reverbs/emt-250.html
There were mono, stereo and qoadrophonic versions of the 140.
The stereo 140 was dealing with with "M" componet of a M-S matrix
only. For better understanding, I'll write down the original
description:
"For the addition of reverberation to stereophonic recordings, the
reverberation unit must satisfy two separate conditions:
For one, it must extract from the stereo signal its directional
component
and secondly, it must not, as a result, adverserly affect the
signficant information content.
In order to achieve this end, use is made of the so-called "M" channel
which is formed by the addition of the two signals according to the
formula A + B = M.
This is done by feeding part of the unreverberated output signal of
channels A and B trough isolation networks to a common bus. For
compatibly recorded signals this addition of A and B into an "M"
channel produces a proper monophonic signals containing all of the
informational content of the stereo signals.
Etc etc. What a hitech language. Therefore I'd say,
1. Leave the 140 as it is if it's working properly.
2. Use a M/S matrix.
3. Process the "M" trough the 140.
4. Recombine the stereo again.
5. Fertig.
Of course, meanwhile you keep the extracted "S" file ready and you
will note peak values of "M" and "S" file and keep them just as they
are, altering this would affect your stereo.
Edi Zubovic, Crikvenica, Croatia