🚀 go-pugleaf

Hi-

I just puchased a Quadraverb 2 for use on vocals in a P.A. system.
We had our first practice with it and noticed that it seems to be
making the system more susceptible to producing feedback.  I read
the manual thoroughly, and was working with a single reverb block
(Room 2-type).  I adjusted all the reverb parameters, in particular
the input low-pass filter cutoff frequency and the high-frequency
damping, but these didn't seem to help.  It almost seems as if
the reverb algorithm itself goes "unstable" under certain conditions.
Has anyone else experienced a similar phenomenon with the Q2?

In looking into the problem, I compared the feedback contribution
of the Q2 with that of my Rocktron Intellifex and found that across
all the presets, the Q2 contributed much more to feedback than the
Intellifex did, so it looks as if, for the time being, I will use
the Q2 in my guitar rig where feedback isn't a problem and use
the Intellifex for vocal processing.

Any comments/advise would be appreciated.

-Chuck

*********************************************************************
* Chuck Kuczaj                             CMX/Aurora Systems       *
* Software Engineer                        2230 Martin Avenue       *
* Liberty/Eagle Paint & Animation          Santa Clara, CA 95050    *
* kuczaj@aurcmx.com                        Tel: (408) 988-2000 x257 *
*                                          Fax: (408) 986-0452      *
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