Spectron Audio claims that Musician III SE is stable up to 0.1 Ohm Load - with headroom of 3500 watts over 500 msec.
This amp is neighter solid state nor its tube - its class D and for its sound description look at their web site/review page and search Internet, including Audiogon discussion forum.
Don Shaulis, reviewer from Stereo Times (who bought his sample amplifier) and has difficult to drive Apogee Diva wrote:
" I have never heard Moussorgsky: Night on Bald Mountain/Pictures at an Exhibition [Telarc B000003CSH] before. Oh, I have owned the CD for years but I never really heard it before. The Spectron presented the softer passages with such inner detail they became seductive but the real surprise came in the crescendos. The peaks reached were a revelation. It wasnt that the Spectron could play loud, it was that I wanted the music louder. For the first time the crescendos were reproduced with full fury but no smearing or harsh edge that demanded the volume be reduced. Now, after many years, I finally get this fine recording..."
Good Luck with your search.