Tonlab ,If you keep your M1's then all of these combos you mention are very good indeed (i like the Krell least of the above they run Hottt). I however would also include a pair of McIntosh mono blocks MC500w or MC1200w or the MC600w stereo amp with a McIntosh C2200, or C2500 tube pre amp, with the M1's you will be blown away and not even think about getting rid of them!Thank you for response, Matt.
P.S. Many XLR's too!!
Matt M
Actually I am not sure that I will keep M1, this are good speakers, but I think too fluent. JBL are more classic and serious, but this even easier situation: all of this pre/amps will be better work with JBL.
As for McIntosh. I gusee you ment MC501 monos and 1201monos? This monos as long as C2200 and C2500 preamps are made after 2000 year, what I personally do not like... Maybe it is a mistake, but I had 225 amp, which was very very good, but that one had no XLRs and needed to be restored, so I sold it...