Hello, i'm new to the forums, I've been playin the Bass guitar for around 2 years now. I play in my school Jazz band mostly, but our tubas arnt to loud so he lets me play bass for almost all of our songs now. But now on to my dilema. We are having a performance tomorrow, Saturday, so I was to take the school's amp home and bring to the performance. I didn't find it a bad deal, because now I have a 200 watt amp that I can play all weekend. My band director keeps saying that it is $1000, but I found it for $600 LOL. Now I was originally playing on a 50 watt Crate, but it could barely be heard when playing outside. So he purchased a Hartke HA2000 Bass amp head, and a Hartke speaker cabinet. Outside, the new amp could barely be heard. I would swear that the 50 watt Crate was just as loud. I didn't know what the problem was. I checked and made sure that all the cables were plugged in securely. But it seems to be fine when playing on my bass. But another question I have, is what do I put the settings at. I know, I should try and hear whats best. I did that as best as I could, but I was wondering if there was a site out there that had settings that you could set the bars to. Or if you could maybe give me some tips. The songs we are playing are: The Impression That I Get, Are you gonna be my Girl ( By Jet), Vehicle, and All the Small Things ( Blink 182). And also, what does compression do? And help would be greatly appreciated. Thank you.