Hi all, I have recently purchased this bass and immediately swapped out the on board battery as it seemed like a cheap generic one. Had my first band practice with it last night and could hardly hear myself - I do play in a heavy metal band with two guitarists but have never struggled so badly before. I play through a 300w amp so normally the amp has enough juice but I had to max the volume across the board to get anything! The amp was telling me to increase input so it seems the signal from the bass is low? Are these basses renowned for this and is there anything else I can do? Cheers.