Both the Bass XT Bean, Bass XT Live, and the new X3 Live units use a power supply that puts out 9v AC (not DC). I've owned all 3 units at one time or another.
Here in the US the X3 live is only $100 US more and you get everything the Bass pod XT live plus the guitar stuff and most importantly the XLR outs. The missing things i've noticed for X3 is that it doesn't have bi-amp mode (never used it on the xt), 4 band semi-parametric instead of six (never used it on the XT), and no dedicated dry signal out (again never used it). With the "Dual tone" feature of the X3 you could easily set up your patches to include a dry signal on one of the outs. The one other thing I didn't like about the X3 is that it's ABS plastic instead of metal like the old unit. I worry about it breaking, but it's a lot lighter than the previous model.
I just got my X3 and haven't played a gig with it yet, so I'm going to reserve final judgement of the unit until then.