I got my new MG-12T-V yesterday and only have a few hours playtime on it so far. And no gigs scheduled for a while so my impressions are "home-based". Couple disclaimers: i'm using an MG350 amp with both cabs, same settings. 4-string passive P bass (G&L LB-100), fingerstyle, no slap/pop/zing pyrotechnics. And i am certainly no techie.
Physically the cab looks great and oozes quality. Interestingly it feels about the same as the BA110-2 to schlep around, ie easy. The couple pounds and inches are really not noticeable to me - that is a big deal for this Olde Farte.
Sound is fuller and deeper than the BA110-2 , i guess it would be called old-school in comparison to the 110 hi-fi-ish sound. However that sound is not boomy or muddy, it is warm but quite clear. Is that a little push in the mids (don't know, maybe Jeff will clarify)? The 112 tweeter is very smooth and adds a lovely sheen to the sound, not in the slightest harsh or trebly/clanky.
That all said, I think the BA110 is a great little cab for what it does. It is just different in terms of size, and performance, depending on what a player is after. I've been after a one-cab solution for the kind of playing i do. I'd been thinking about adding a second BA110 to my MG350 combo for the fuller sound and more versatility but when the new 112 was announced that seemed to be a perfect solution for what *I* (maybe not you) was looking for. And, initial impressions, granted not gigged yet, it is.
Here's a couple size comparison pics:
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