I currently am driving a full compliment of Mbl speakers with Chord Electronics equipment and I think they sound fantastic together on anything/everything I have thrown at them! I have 101E's on the front L&R, 111RC center channel and 121's on the rear surrounds. I have a Chord DSP 8000 7.1 processor, Chord PM 6000 mono-amps on the front L&R and two Chord SPM 1200c's for the center and surrounds. I was lucky enough to audition the MBL 9008's and new Pass Labs X350.5's at home in my actual system in place of the two Chord 6000's and they both also sounded very good, but I preferred the sound with all the Chord pieces working together. Please understand the Mbl and Pass Labs amps are extrememly good pieces also and I can't think of 1 negative thing to say about them based on the performance in my system! FYI, I rated the X350.5's next best followed by the Mbl 9008's. It is hard to put my finger on exactly why or what caused the Chord amps to sound better to me in my system/room but maybe it is because I am also using a Chord processor and/or the combo with the my Esoteric UX-1.? The Chord pieces are really pretty amazing though in my viewpoint as the 6000's seem to very easily throw out a clean and quiet 1500 w/channel at 4 ohms without even breating hard or getting very hot!
One thing I have found that you probably already know, is that you have to have some pretty serious power/current at 4 ohms to really let the Mbl's, especially the 101E's, perform up to their capability.
One thing I have found that you probably already know, is that you have to have some pretty serious power/current at 4 ohms to really let the Mbl's, especially the 101E's, perform up to their capability.