I reciently purchased a behringer power amp for my bands pa. I was also thinking about using it for my bass rig but dont really know anything about pre amps and wanted some help. I was looking for a pre amp that has a large variety of sounds and is relitavly cheep like around 300$. i am running 2 gk backline cabs if that helps. Sorry for the broad question but i really have absolutly no ida where to start. Thank you for any help you can give me.