To bring out the best in any speaker one needs to find out what amplification the designer used in his development process. Some designers may be hesitant to offer this information for many reasons. Even so, there could easily be an amplifier who's presentation will be more to your own personal taste.
I own Avalon Eidolons and a solid state, tube, and a pair of NuForce 9SE version one's upgraded to version three. The Eidolons are revealing enough to easily hear differences in most cable designs. The SE's offer the most unfatiguing presentation especially at high volume of anything I've heard in my system to date. I've read were some find the SE's high level of transparency analytical or cold. Their transparency is high but the rest may be a combination of the speaker and subjective taste.
My other amplifiers have their strong points and their weaknesses. I like them all but the switchers get played the most.
Switching amplifiers are as varied in design as are tube and solid state designs and generally require more effort to integrate into a system than the other types. Volts AC, cable selection, RF and EMI, can have enormous detrimental effects on many switching amplifiers.
Whenever I read disparaging remarks toward switching amplifiers it's usually from someone who just plopped the amp in their system to negative effect. Regardless of everything I've said switching amps are not for everyone and should only be auditioned in your system.
The last time I listened to a pair of Eggleton's they were stunning with VTL electronics.
