Devores are really designed for tubes! They are also easy to drive, and our customers have really nice things to say about them.
You will do alright with your amp, but if you like the combination, I suggest that you audition a good tube amp on the Devores and see how much you still like your SS amp. The way it works with any amp is to not present it with a difficult load. This is in particular true with tubes, and the Devores are a good speaker for being easy on a tube amp. I think you will find that you hear things with a good tube amp and the Devores that you didn't know was in the recording. Above all- have fun!