Hi all, My current rig consists of a Behringer BX3000T head with Avatar B210 and B115H cabs. I can get a good tone out of it and my bandmates think it sounds great. At a recent rehearsal I played through the keyboardists Roland K500 Keyboard amp. The tone was deep, clear and crisp. A tone I really LIKE that I cannot duplicate with my rig. My question is, if I upgrade the bass amp to a "name brand" quality head will my tone upgrade also? I like the Avatar cabs I use, tough are they also a major part of the equation? My thinking is a upgrade to an SWR, Carvin mono block or GK could take my tone to another level, though without playing them first with my cabs and bass it is hard to speculate... Any advice, comments or blog is welcomed.