Hi Guys,
Thanks for your input
During rehearsals yesterday I did some tests and it would appear that you had it nailed. Low notes I was getting this effect, high notes were fine. I just wanted to chat with the local sperm whales you see
On another note, I was getting a very interesting effect whilst at the rehearsal yesterday, whilst playing a B note, not only did my vision stop working, the fluorescent lights in the studio would go out whilst the B was being played, then come back on with other notes awesome!
Stan_da_man, you are correct, a good choice of amp!
Thanks again guys.