YW pcc67. Yes, I prefer tubes on them, or most any speaker for that matter. I am running a pair of Audio Mirror 45 Watt SET monoblocs - plenty of power for the Fontaines. Don't know if they'd be enough for the Andras though. I recall reading in the past that some Andra owners liked McIntosh tubes (MC 275 monoblocs) with them, but those are way over your budget.
Looking for a little help for speakers I may purchase
I recently went to audio dealer near me and by accident decide to listen to a used pair of egglestonworks andra. I must say I was completely blown away by the sound. I decided I will listen one more time this weekend. And for the price being very affordable I will put them in my bedroom. They were hooked up to prima tube. But I dont want to put tube in my room. And want to keep amp and pre under 2 or 3k. Any suggestions? Used is fine. Ty