Hi all, this is my first post so here goes - I purchased a Gibson Songwriter Studio from local store in April 2013. As a purely acoustic/recording guitar it has no flaws. However, when plugged in to any size of pa and turned up to less than performing level it produced a feedback of around 80Hz. This couldn't be stopped like other feedback by muting the strings, you have to either turn the volume down or apply pressure to the bridge to kill the feedback. The fact that applying pressure to the bridge stops this indicates either that the transducer is not set flush under the bridge or the whole guitar begins to resonate at a low volume thus producing the noise. Guitar tech in shop looked at levelling out the seat of the transducer a couple of times and after he was satisfied that it was flush he then put the problem down to the rosewood back and sides of the guitar being lively and recommended a third party over-the-sound-hole pickup. Wasn't too keen on this and eventually went back in November 2013 when the shop offered to send the guitar back to Gibson. Gibson admitted there was a fault (although they did not specify what it was) and sent out a replacement which did exactly the same thing - fedback when turned up through a pa. Also the replacement does not play or feel nearly as good as the original. The shop advised that this may be due to the material of the guitar and the problem is common in many high end guitars? The shop also demonstrated a J45 model which fedback at around the same volume but this was due to the strings vibrating and could be stopped by muting them. I loved the original guitar and would settle with that and an external pickup although I am a little uneducated in this field. Any support would be greatly appreciated!
Many thanks. x