Took battery out which was a bit corroded but not actually leaked inside the battery compartment or onto the connectors. Played the bass as passive and everything sounded fine. Thought it must need a battery replacement so put a new one in and same thing happened.
Didnt want to send it back when it just cost me an arm and a leg in shipping and paypal cost as well as import duty, VAT etc so got an electrician friend to look at it. He took the battery wiring connectors off (so I cant send it back now anyway) and put the wires directly on the battery and it played fine. The wiring is so short in that compartment that I'm assuming it got pulled loose. I'm hoping when he fits new connectors it will be ok but how would I check if its the preamp and what could possibly be wrong with it as the bass is brand new?
Edited by smurfitt, 09 March 2016 - 09:37 PM.