[A6] filter/vca tolerance

[leo]

when  experimenting with  myA6,.i found that there were  really big 
differences between the different voices. it seemed as if the amount of 
feedback or resonance varieted greatly  from voice to voice.  how 
exactly it works i'm not sure.  i also played the same patch on an A6 of 
a friend, with the same effect however with other voices involved.  
changing some of the filter/vca chips (with the help of the excellent 
german service station) brought the different voices more in 
line.(adjusting the filterfeedback for every voice apart also reduced 
the differences). on the moment my A6 has a complete new soundboard( the 
reason why it came sofar is another story) and ,yes ,also with this 
board the effect occurs.
i still wonder what causes this phenomina?

for people who want to  it try out themselves  i put a testpatch on the 
site mentioned in previous posts.
 on request i 'm also willing to send the patch directly

(patch can be found on:
http://electro-music.com/forum/viewtopic.php?p=25246#25246
*just play the patch and eventually monitor the different voices by 
:global/voxmon.*)