Hey guys,
I got an Ibanez EW series acoustic guitar a couple of years ago.
Now randomly it will cut out or the volume will drop majorly during a song, its not the batteries because I have changed and tried different brands of batteries and it makes no difference.

It seems to cut out if I get a little 'percussive' on the strings near the bridge (not bashing the crap outta it though). The 1/4" output jack seems like it could be the problem, but it still does it when I use the XLR output on it too, just not as much.

I've taken it to 3 guitar techs and they can't get it to cut out when they used it

Does anyone know what the problem could be?

Many thanks,
Cav