Haven't tried these in particular but purely on the tube amp side, as a quasi collector, if 150 isn't a big loss for you and you've done some basic research on speakers, then go for it. They're often fun and surprising to play with, especially with good EQ. Don't get lost in the math or cables marketing. Much more so with big speakers in big rooms, than headphones, however. These little guys may be good in a smaller setup. Not sure with headphones.