Well, it's only been a couple of days, so too soon to tell but yes, both of these Yammies have me thinking they will displace the other gear. I've never thought I'd become an SS guy, but the sound quality is superb and nothing like any other SS gear I've heard. Also, I've been obsessed with 60's tube gear for about 10 years and now my tastes are starting to move towards high end 1980's and early 90's gear. Oh and also..... I like amps that are built like tanks.