One comment in passing from that review was that the generic Chinese KT88 s were more than ok and swapping them out was unnecessary. My ASL MGSI 15DT uses these-- first thing I did when I got the amp was buy new JJ/Tesla KT88s, Tomorrow I'll put the Chinese tubes back in and see what they sound like, BTW just put in Kimber Hero I/C with this amp and what a difference!
