TomCat wrote:
Apologies.....I impression was that maybe you were playing an electric...... :-[ :-[....My bad
No worries TomCat ?
Alan Ratcliffe wrote:
Feedback busters help, but short of damping your guitar top and strings entirely (as in no sound), there is no way of stopping an acoustic from feeding back with enough volume or drive (they are designed to resonate). That's why the solidbody electric guitar was invented (and we can make even those feed back when we want to).
Fair enough. I think I was also a bit silly with my "testing" technique in this case... Think I was expecting a bit much of this piece of rubber ?
X-rated Bob wrote:
Check out and see what you have. Check if there's a phase reversal switch - that may help.
Another thing... I used to have a problem with my Morgan, which would howl mightily but only at certain frequencies. A feedback buster made no difference. My Larrivee - with the same pickup system and played through the same PA - was fine.
Much head scratching....
Eventually I emailed LR Baggs to see if they had any ideas. They said it's a not uncommon problem with under-saddle transducers. Baggs, Fishman & Co tend to make the transducer a little on the long side so that it will fit all common saddle slot sizes. If the transducer is longer than the slot then you typically have a length of transducer hanging free inside the guitar. If this is not tethered down it can vibrate at certain frequencies (I'm guessing the exact frequency will depend on the length of this hanging piece). They were right. Mark at McGibbon's tethered that piece of transducer and the howling stopped and has never returned.
Thanks Bob. As far as I can remember the pickup is piezo, I was told so when I bought it. Unless it's very well hidden, there's no phase reversal switch...
The problem you describe with your Morgan sounds very similar to the one I'm having here. Is there a way of checking if there's a length of transducer hanging? I would imagine if one felt through the sound hole, under the bridge, you'd feel it?
