Can't make up my freakin mind. I love that Raven Lab stuff, especially for quality and portability. And I like Acme B2 Low B, decisions decisions
If you already have a good cab, go for the Raven Labs. The MDB-1 is absolutely the handiest thing in the world to have around if you use multiple basses on a gig. I've used mine for all kinds of other stuff too...they're just unbelievably handy. Niether of the 2 Acme cabs I've owned are still here (even though I liked 'em...didn't like how inefficient they are), the Raven Labs is still in the gig bag.