Hey Tony...this is a great idea!
Peter,
You can test Tony's mod non-destructively by simply popping IC15 out of its socket. That'll disable the filter that we're talking about. It also completely disconnects the signal path.
To reconnect the signal path non-destructively, get a couple of clip leads (or feel OK about tack-soldering in jumper wires). Clip together J29 and J28. Then, clip either J28 or J29 down to the left side of R168. That'll jumper around the big hole left by removing IC15.
This should recreate the bulk of the mod discussed by Tony...you should get the snappier envelope and you should get the brighter sound.
What this non-destructive version of his mod does NOT recreate is any reduction in noise due to disconnecting the envelope follower (which he effects through the removal of R109 and R115). This also does not recreate the effect of the removal of C61 (whose removal should add 1-2 dB of the extremely low bass frequencies).
I'm going to try my non-destructive version of Tony's mod later today and compare it to my own mod where I simply force the filter open by jumpering +15V into C14.
More to follow...
Chip
--- In PolySix@yahoogroups.com, Peter Mörck <peterm@...> wrote:
>
> This sounds really interesting and I'm tempted... but...
> I assume there's no chance of hearing a good quality before/after recording with identical patches played identically? :P
> I want to judge the noise level myself before tearing things apart :)
>
> BR,
> Peter
>