IMO, KT88 response only --- they are super hyped KT88's and NOT WORTH 1/3rd their asking price. It appears a Chicago web site is tauting them as the best ever -- that's marketing BS (and they have done a good job at it). These are made at the old Telsa factory and now that they have resolved some of their earlier tube failure rates, they are just okay tubes (but in no way command $1600 for a QUAD).
The Genalex reissues are as close to the original NOS Genalex as can be possible. I had a very good pair, close to MINT, high gm, NOS and sold them after I compared them for some time to the reissues.
Go KT88 Genalex reissues and you'll never look back.
