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.
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.