Martin Logan vs. Thiel

What speakers are easier to Drive? Martin Logans or Thiels? I'm not talking about sensativity but impedence, the nominal for both is around 4 ohms but the logans also dip to 1.8-2ohms depending on model, so you think that any amp capable of driving the logans nicely will do the same to Thiels? minus the 3db sensativity factor?

MLs are not easy, and in fact I'd call them one of the more difficult loads around, especially the older models. The older CLS full-range panel dipped under 1 ohm for some significant fraction of its range, a load that drives most amps insane.

For grins I tried driving my Odysseys (new hybrids that don't ever go much below 2 ohms) with a fairly respectable B&K AV6000 (175 wpc @ 4 ohms), and the result was ugly. It definitely ran out of gas, even in my small (14x 15) room. Some other folks have suggested driving MLs with SET amps and I find this totally incomprehensible with the possible exception of biamping the panels with a SET - and something massive, probably solid state, for the cones below 250 Hz.

I have a lot less experience with Thiels, but they appear to me to be fairly typical loads, so I'd expect them to be a lot easier to drive than any MLs.

How do you know when an Amp isn't happy? I mean a $300 av receiver can drive the logans to great volumes

In the worst cases, you get clipping and/or muddy bass. (Probably that muddy bass *is* clipping, but maybe clipping in that sound region sounds muddy.) Clipped treble or upper midrange is particularly offensive, at least to me.

Other times you'll just get reduced dynamics or dynamic range, and there are probably other symptoms of which I'm not aware.

I heard the Thiel CS6 with my extreme monos stratos,
Its the best combinations, I have heard,will it surpass
the ML classe combination? the answer is without a
doubt,Yes.They say the classe has sonic similarity
with the extreme.Dont get me wrong the Martin Logan
are very good speaker. Good Luck.