I've been playing for about a year and a half now and I my only regret is that I didn't pick up the bass sooner. Anyway, my knowledge of technical details is really lacking so I have a really simple question for you... Can I use my Ampeg BA-115 as a preamp? I'd like to upgrade my rig piece by piece and I was wondering if this is an option. If I can, then I would get a power amp and cab now, and upgrade to a better preamp after I've saved a bit more. Thanks.