Hello Jasonw01, I owned those same speakers a little over a year ago and drove them with a pair of Krell MDA 300 monoblocks, (albiet older Krells), but I couldn't believe how much punch and slam I got out of my 111e's. I think you would do well with Krell mono blocks and there are always lots and lots of Krell amps to choose from right here on A-gon. Remember, your MBL 111e's can handle ALOT of continuous power and love it when they get it. They seem to open up and come alive the more "juice" you feed them. At least that was my impression. Try to find some "newer" Krell monoblocks as I believe the older stuff may require some service and upgrades due to age. I had to pump several thousand bucks into my MDA300's after about 10 years as output devices don't last forever and Krell runs hotter than hell, (at least the older stuff did). I sold my Krells and moved to B.A.T. VK600se mono blocks about 2 years ago. I like the B.A.T. very much and find them to be smoother and less fatigueing on the upper end. (just my opinion). But I find the B.A.T. to be a strong contender with boatloads of horsepower (600 watts @ 4 ohm). Good luck to you.
