Cary 300 integrated, Devore speakers

No, I've never seen the minimum power specs listed. I have a vague memory of once asking him but I think he said that he wasn't familiar enough with this amp. It's true you can't go by the numbers alone. I've heard many combinations that work just fine despite the numbers. And others that don't. I've read forum threads where people describe completely contradictory experiences. 

But I share your affinity for Devore. I first heard Devore around 2005 at my local dealer, a pair of Super 8 in fact. I became a devotee instantly. One of the brands I just swear by. 

With my 30W class A amp and the benign load of the Super 8's, it feels like I have a lot of reserve power. Your amp is Class A, probably with high current, you really need to find the recommended minimum power.
I've heard it's tough to reach John Devore, but I suggest you try. Also use Google, I'll research it as well.

Does your amp have 16ohm taps or 4, 8ohm?
 

The Cary has a 4/8 ohm switch.

I've researched the minimum power but haven't found it. If you come across any information. I'd appreciate it. It was several years ago at least that I wrote to John Devore. I'm sure he's much busier these days.