you know, planar speakers (electro-static or true ribbon or quasi ribbon) could be a very capacitative load to the power amp. This means that, due to this highly capacitative load, the power amp could break out into ultrasonic oscillations. As a side note: Very recently I contributed to a thread that discussed ultrasonic oscillations - the OP had posted that his Odyssey Audio gear was frying his Green Mtn Audio speakers time & again - you might want to read that thread as well if there is any info worthwhile for you.
The ultrasonic oscillations could have sufficient amplitude thus generate sufficient heat energy to kill your power amp over time.
There's a good reason that InnerSound/Sanders Sound Systems makes their own power amp for their speakers. Not all power amps, no matter how bulky they look, can effectively drive a planar loudspeaker.
Maybe this is not the issue but it's something to keep in mind.....
The ultrasonic oscillations could have sufficient amplitude thus generate sufficient heat energy to kill your power amp over time.
There's a good reason that InnerSound/Sanders Sound Systems makes their own power amp for their speakers. Not all power amps, no matter how bulky they look, can effectively drive a planar loudspeaker.
Maybe this is not the issue but it's something to keep in mind.....