Yahoo Groups archive

Doepfer

Index last updated: 2026-04-29 00:15 UTC

Message

Re: resonance for a108 when feeding 24db output into feedback input?

2006-05-31 by marrtin606

Dear Ingo, Bakis,

you're of course right I don't need the feedback to get some form of
resonance - but the point was to understand why i couldn;t get
resonance using only 4 poles.

I'm pretty sure the feedback is internally patched to the 48db - 
apart from the manual and schematics suggesting this, you can also
try this by directly patching the 48db out to the feedback in: you get
just the same as when nothing is plugged into the feedback in.

> if you want, of course, you can patch the res input
> with any of the filter outputs, for different
> resonance behaviour.
> regards,
> Bakis.
> 

That was precisely what i was trying to do, but didn't get much
resonance. And that surprised me, because 4 poles/24db should be
sufficient for that.

I found out now that if I amplify the 24db signal a bit before feeding
back (with a vca or externally), I also can get into resonance using
only 4 poles. I'm still curious to hear what other 108 users find!

Cheers Martin

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.