+1 Tablejockey. I would add this, too: I listened to the EVO 400 with Spendor floorstanders and the bass was very muddy, boomy. I am sure that I formed a rash impression of them, not least because they only had the tubes they had; other tubes would bring a much different sound, I’m sure. The key for me buying what I did (Quicksilver) was the build quality, very few people trading up from them, and the very low number of posts I found complaining about the build quality of the gear; lots of raves, good comments about service from Mike Sanders, very few complaints. I’ve had it 6 months and have swapped in new and good tubes and the sound’s changed a lot.