D class amps with Soundlab speakers

"Its not a power issue though- 150 watts is plenty of power if the amplifier can make the power. Its a matter of impedance "

Yep, its better to be rich and healthy then poor and sick.
The problem is that some, just some don't know how to reach there.

IcePower and Soundlabs: Honestly, I am not even sure if these amps are capable to drive these speakers without invoking protection circuitry... Very easy to test; if in the middle of music you will hear silence then yes, its your answer

For the most part solid state amps do have trouble making power on this speaker. I would not expect a class D amp to have problems with the load otherwise, just that you would want one with a lot of power (600 watts or more depending on the room) so that you don't have to push the amp.

Some of this is my own experience- I find that class D works a lot better if they aren't being pushed hard.

"I find that class D works a lot better if they aren't being pushed hard."

PRobaly true with most any SS amp but honestly, I play my BC ref1000m's pretty loud on some relatively inefficient speakers (albeit not electrostats, which are unique electronically) in a decent sized room and I have never detected them being even moderately warm, much less break a sweat. THey seem to handle things without much effort for the most part no matter what. No sign of stress or rough edges in the sound whatsover no matter what. Has not been the case with any other SS amps I have used there, which is one big reason I went to one of the biggest yet most efficient, well reviewed, and tube pre-amp friendly SS amps I could find. I had to stretch a bit to handle the cost but it was worth it.

I have heard other IcePower amps (Rowland) do a similarly nice job with Magnepans however. I can't imagine that a good design that addresses power supply around a stock Icepower amp module like these could not handle just about anything. I might be somewhat more skeptical about some amps that just stick stock Icepower modules in a box but I would expect decent results even there.

Ralph it would seem to me that the D class amps would have a hard time with the soundlab speaker because they are so compact without weight; this to me says the power supply section would be lacking and not be able to make the power as the speaker starts to demand it.I have never heard a d class amp on any speaker but this is the area of these amps that I can't grasp vs the tube or solid state amp with a huge and heavy power supply section;maybe I am just of the old school and behind the times on this area of the hobby.

My understanding is the efficiency of the high speed switching design of
the class d amp is what enables its compact size and weight including that
of the power supply compared to similar power rated class a or class a/b.

It is really a major technical step forward these days in amp size, weight
power and performance compared to older design approaches. Very
innovative!