Today I really couldn't get a well sound out from my amp. I rested my ears for 2 hours. With exacly same settings (almost), it sounded good again. I just wanna give you all bassplayers (and musicians) a tip to let your ears rest sometimes. If you are not happy with your sound and tweak your amp like a rotten lamppost, and only getting more mad and angry. Just rest for awhile. Then your ears got new energy. Just wanted to share this little tip which helped me alot.