Hello there! I have a problem. I'm selling all my old basses, and I've already sold my rig, the only thing I still have is my Demeter preamp (but I don't wanna get rid of it!). I COULD afford a high-level-space-cowboy new stack (Mackie power amp and SWR, Eden or ACME cabinet), but I've found a bass that I WANT, and it's EXPENSIVE! It's an unique piece... an Alembic custom with double-Omega body. Well, this thing costs $2,500.00 used, and if I get it I cannot get the power amp and the cab. So I was thinking: can I plug my Demeter in the PA and hear what I'm playing thru a pair of good headphones or I definitely need a monitor? If I need a monitor, what kind of active one I should get? Thanx to everyone and have a great week-end!