My first deal on Talkbass! I was actually looking for a nice lightweight matching GK cab for my MB200 head when I saw an MB115 in the classifieds. As it's the same basic amp I figured the combo would do just as well. I was using a 70 lb 2X12 Hartke 2200 cab with the MB200 head and just found it too heavy for my aging body. For jams etc, I've been hauling around my old Yorkville Bloc80 80 watt 15" speaker combo amp, which at 35 lbs is easy to carry and sounds pretty darn good but you have to push it pretty hard to keep up with a band with a drummer. I'm hoping the MB115 will be a do everything amp that will combine the best features of my Bloc80 combo with a little more volume. Already have sold the MB200 head, the Hartke cab and at lunch I dropped off the Bloc80 to the music school where I take bass lessons... that way I still have visitation rights and get to play through it once a week. So I am ampless until I pick up the MB115 tomorrow. If you have an MB115 I would love to hear your comments on it!