Thanks for the tip Karyoker. Will try that if the humming returns. Another thing I want to do is get a decent power conditioner as I'm not using one at the moment. Will definitely have one before doing any gigs!
I thought that the signal cable would have to have three conductors for a balanced connection.. one for the ground, one for +ve and one for -ve! ???
Thanks for the welcome Vicki... you can bet if I go to the dentist, he will ensure I have a toothacheby the time I leave!
![lol lol](./images/smilies/emot-LOL.gif)