Installing internal microphones without feedback.

Hello! First time for me here.
 
I play in a rockband. Very loud - and of course I have a lot of
feedback-problems - also in rehearsal-studio.
 
My former accordion was a Hohner Bravo III 96, where I installed
THOMANN ACM-01 accordion pickup system. Cheap, but worked quite well:
http://www.thomann.de/gb/thomann_acm01.htm
 
I put some leather inside the case of the accordion to take away some
of the resonance, which I think helped a little regarding feedback.
 
Then I fell in love with a TIGER Combo´cordion from the sixties, and
bought it through EBAY:
Treble-side:
http://www.flickr.com/photos/31544092@N06/3704893546/in/set-72157621052310113/
Bass/Chorus-side:
http://www.flickr.com/photos/31544092@N06/3704083637/in/set-72157621052310113/
 
It came with an original crystal(?) microphone placed in the bellows.
Unfortunately the amplified sound was very sharp, and lots of
feedback.
 
Therefore I went to an accordion-dealer, and he suggested the
Microtech/Sennheiser MT-04 system, which he installed.
 
In the following pictures you can se how the system was installed.
 
Inside the treble side:
http://www.flickr.com/photos/31544092@N06/3704084089/in/set-72157621052310113/
 
Inside the bass/chorus side:
http://www.flickr.com/photos/31544092@N06/3704083261/in/set-72157621052310113/
 
I still have feedback-issues. Even though the sound is much better,
the Thomann system actually worked better regarding feedback. I also
experience a phase-problem, since the treble-side strangely has more
feedback when the bass/chorus-side is turned down.
 
Has my accordion dealer put the mike correctly on the bass/chorus-
side?
Close-up in the bass/chorus-side
http://www.flickr.com/photos/31544092@N06/3704082337/in/set-72157621052310113/
 
Has anyone here got experience with installing internal microphones?
Is it maybe an idea to put a piece of foam weatherstrip(?) under the
circuit board to act as a sound
damper, as John C. writes here:
http://groups.google.com/group/rec.music.makers.squeezebox/msg/7b99a8cfe97abb6b?hl=en&dmode=source
 
Any other suggestions are greatly appreciated!!!

Viktor (Copenhagen, Denmark)
.

Relevant Pages

  • Re: Installing internal microphones without feedback.
    ... the closeup of your bass side does not look like the ... the Senn's are hypercardiod and resist feedback quite well ... ease of installation ... THOMANN ACM-01 accordion pickup system. ...
    (rec.music.makers.squeezebox)
  • Re: Installing internal microphones without feedback.
    ... There's also usually no problem with feedback, ... I don't agree with John's comment that these microphones are not good ... THOMANN ACM-01 accordion pickup system. ... Has anyone here got experience with installing internal microphones? ...
    (rec.music.makers.squeezebox)
  • Re: Installing internal microphones without feedback.
    ... The installation looks normal for this kit, ... There's also usually no problem with feedback, ... I don't agree with John's comment that these microphones are not good ... THOMANN ACM-01 accordion pickup system. ...
    (rec.music.makers.squeezebox)
  • Retuning for a drier musette
    ... I am looking for feedback as to how feasible this might be and how ... much it would cost. ... which is just below "Scottish" on the extreme end. ... Should I just consider getting a different accordion eventually or ...
    (rec.music.makers.squeezebox)
  • Re: Guidelines please
    ... It does so since I bougth it, I spent some time with installing and reinstalling it on different computers. ... I have similar principles about feedback in my clinic. ... using temporary cement, ... something of which the seller on forehand will know you will have ...
    (borland.public.delphi.non-technical)