Alright i have an SWR 2004 head and a hartke 1*15 transporter cab and all of a sudden when i try to play them you can barely hear the bass. I have to put master and gain all the way up which i usually never do in order to hear it well with my band. However, the power shut off on my house while i was playing my amp the other night, would that have any effect? I'm sure its not my bass because i was playing it on a different amp and it sounded fine. Any advice would be greatly appreciated!