I did some simple patches and found out it is not the 132-3 VCAs
making the "thump" it is in fact my new 106-6 filter. Sorry about not
being absolutely sure before I posted.

I did find some interesting differences between the Asol SY02 and
132-3 which might be of interest to some. the 132-3 reacts much faster
to CV as I cannot get the Asol SY02 VCA to click on a fast attack or
release.

If I use not filter, no "thump" if I use either of the other two
filters I have (A108 and M12 Vactrol Filter) no "thump". As soon as I
use the A106-6 "thump thump thump". The A106-6 into A132-3 with
nothing going into the A106-6 input makes thumps.

This brings me to someones suggestion of using a buffer, which I am
not sure I understood so I patched the M31 between the A106-6 and
A132-3, still "thump". I can really big thumps if I patch just the
output of a M31 buffered mult into the A132-3.

I can rid of the thump by slowing down the ADSR attack and release as
I said. however I think the issues lies in the A106-6 creating a DC
offset. Is there a trimmer inside that I could adjust

My audio path post modular is a MOTU 828mk2 with Black Lion mods
(analog and clock). I am monitoring it on ATH-M50 headphones.

-Argitoth-
I do not have web space - is there a free site I can post audio files