I haven't done anything with the MS 700 s other than raise them on stands, which really helped tighten things up. Will have to have a look at the ballast option. :-) They've seen off bigger and smaller speakers I've had that were more 'impressive', or had better imaging, simply because I find vocals on them to be more natural and beguiling.
A mainly digital setup with a musical amplifier and endearing 1970's speakers. A CD player that hardly ever gets used and a turntable that is good enough to remind my how enjoyable my old vinyl is. Some cables and things.