Hey Rcprince! No, I am sorry, but I never came across those. I remember hearing players from Carver, Dynaco, Jolida, and those that were "modded" to use tubes like the Ah! Tjoeb is today. Were those hatchet jobs(just a figure of speech) Denon(or JVC?) players back then? Can't quite recall... Those players did take the digital edge off the music(along with a lot of detail). Usually 12AX7 or 6DJ8(6922) tubes in a CD player, so you know the tubes will last a long time. One thing about CD players, if you don't really abuse them, they'll be around for a lot of years. I have two old Pioneers in my house that are still going strong(in solid state rigs, for the non-Audiophiles at home). I believe they are about 13 years old. Maybe I should have traded up for some tube output players over the years, huh?!? Is it me, or do musicians(like your friend) get a lot more enjoyment out of this hobby than most audiophiles; with a helluva lot less in terms of equipment no less? For them, music isn't usually a competition, but a form of entertainment, relaxation, and enjoyment. Should be like that for all of us. Enjoy the music!