Doepfer

mirror_saw7778, you're not alone, take a look at this thread. I even 
have an audio demo. Let me know if you are hearing the same problem in 
my audio demo: http://modularsynth.net/viewtopic.php?t=2214&start=0

Monroe, the thump problem lies within the modules. Some modules thump, 
others don't. My RS-110 filter thumps with instant attacks, but not my 
A-106-1 Xtreme Filter. My Model 12 filter thumps in Low Q mode, but 
not in High Q mode. Combining the A-132-3 with a filter to create 
something like a lowpass gate can solve the thump problem.

mirror_saw7778's Asol SY02 does not thump. His A-132-3 does. 
mirror_saw778, CAN YOU PROVIDE AN AUDIO DEMO FOR BOTH MODULES?