The amp I am looking at if I ever get space for the Blades is the new KRELL KSA-400i. I never heard it and it is very expensive. However, I own the KRELL XD175 and this new amp is priced 5x more than my amp, has great power, and the same plus more features as my amp.
There was a review in Tone (I think) of the Blade by Roy Gregory (sp?) and he described his journey with power and the Blades. He needed more power than he initially tried.
My KRELL Dou 175XD likely is under powered for the Blade. The new KSA-400i, is not and it likely sounds like an even better version of the 175XD.
I sold my CODA #8 today after reading about the new KRELL. I was originally thinking of using the CODA with a future Blade.