Re: Anyone out there using Marshall amps?
Can't help you with the Marshalls specifically, but I have a pretty good handle on what makes a nice bass rig.
This is my rig for bass and Stick.
On the left: Seymour Duncan KTG-1 tube guitar preamp into a Peavey Classic Series 120 tube power amp (4x 6L6GC.) The cabinet is a generic guitar 4x12, nice and midrangey.
On the right: Ampeg SVT-II tube bass amp (6 x 6550A.) The cab is an Ampeg SVT-1540HE, which is basically an SVT fridge cab but with a 15" in the bottom instead of 4x10". It also has a horn, which I don't use.
I run into the SVT and then use its line out to feed the "guitar" rig. The guitar rig runs dirty almost all the time (I play thrash metal...) and the SVT is mostly clean. It gets a little grind but it's subtle.
Total weight of this rig? No idea. Heavy, though. It just about fills up my station wagon!
I don't run it in stereo, since my Stick is in Dual Bass Reciprocal I'm just playing all bass. It works great and the extra dispersion from the 4x12" cab makes it easy for me to hear myself on stage even when I'm not turned up very loud.
We have a gig Saturday in Raleigh, NC, and I MAY be playing my Stick on a couple of tunes. It'll come down to how well I do at practice with it.