I use Raidho D2 in a smaller room. Presently using Maker Audio Ref 2a amp (formerly Edge), which provides lots of current in a very refined manner. I love the speakers. I was going back and forth between more detailed speakers and warmer speakers (YG and Peak Consult were my last two speakers) and the Raidho speakers give me the benefits of both in a very natural way.
I love the ribbon tweeter. I had previously owned Genesis, Piega, ADAM and Selah line arrays with ribbons and had missed the detailed yet sweet sound of ribbon tweeters, but the Raidho is the best I've heard. My front end (DAC and Pre) are tubed, and I'm considering trying a tube amp, but really can find no fault with the Maker...