Hi. I've trawled through the forums but cannot find the answer to my problem, so wondered if any of you had also encountered this. I have a Harley Benton EUB. It plays fine with the on board pre-amp and headphones, but has an issue when plugged into an amp and a tuner. Firstly, when plugged into an amp it makes a buzzing sound, not exactly what I would call feedback as it is a low noise but no notes can be heard. I haven't anything else to test on the amp so cannot eliminate the amp as the problem, however when plugged into two korg tuners, one a bass tuner and the other chromatic, the tuners only register an overtightened G, so the EUB must be emitting some odd signal. Both tuners work fine acoustically with my DB or when resting against the bridge of the EUB. I'm aware there are some "fixes" recommended for the HB EUB but not being adept at electronics most of that goes straight over my head. I expect something needs to be taken out and doctored, but any idea what and how please? Cheers, Si