The monoblocked Bernings with their 140 wpc and high current delivery will drive even the toughest loads. I heard of at least two people that are using them on their MBL 101's with amazing results. However, even with easy to drive speakers there are significant benefits to using these amps as monos. They sound much more effortless with better dynamics, improved overall clarity, even purer midrange and richer and more natural harmonics. In my system these little beasts bettered two different amps that cost well over $20K! If you're buying a pair, make sure they are of the same vintage as there are differences between different production runs and you definitely would want them as a matched pair.
