I'd like to throw one more item into this mix. I was going to get a Berg 112 and then, after a lot of research, decided to take a shot with this.
I purchased a Baer ML-112 without ever hearing one and have no regrets. I use it for smaller rooms and clubs where it performs flawlessly. Huge bottom with very smooth transition between the mids and highs - great definition throughout. Plus it only weighs 36 lbs.
I've used it with a Thunderfunk 550B, GK800RB and Mesa M-Pulse 600 with excellent results from each.
My MK Std sounds wonderful, as do all the rest.
Ultimately I'll get another and get rid of my Aguilar GS-212, adding it as necessary. Can't say enough about it. It is only available direct. Look up reviews - TB has a huge thread on them.
http://www.baeramps.com/cabs.html