Brian,
I'm not aware of what it is that has made you lose faith in Supratek, its probably just the fickleness of audiophilia or that you have suffered burn-out who knows? You are quite within you're rights to express these alternative views (as we all are), but you are just plain wrong about the statement that the Suprateks are somehow not hi-end.
IMHO (and with 25yrs experience of playing around with hi-fi), the Supratek Cortese and Cabernet would be placed among the BEST preamps ever created. I mean, you have people on the planet running their $130,000USD Avantegarde horns with the Supratek Cortese and loving it, if this doesn't say something about the high quality of the preamp nothing does!
I have tried passive devices and run directly to the CDP, and have not found these options to be better than my Supratek preamp. The music deadens and becomes lifeless and one dimensional when running passive. The Supratek preamp somehow picks up the signal and brings it alive, all full of clarity, emotion and realness - I can't explain it on any level of electrical theory, IT JUST DOES. There are things hidden in recordings that only the Supartek preamps seem to flesh out, the ambience of the venue, the spacial clues of the performers on a stage, the timbre, texture and long decay of instruments etc.
It's not for want of trying with passives either, as I have used the Mod Squad passive pre; Audio Synthesis Passion attenuator; D.A.C.T attenuator; and Sowter transformer pots. The direct to CDP route to me sounds a bit electronic (digitalised for want of a better word).
My initial comments about speaker quality and the hidden beauty of Supratek preamps was not meant to put anyone off-side. I was merely stating that if you have ultra hi-rez speakers you will truly know what your Suprateks are capable of. Perhaps those of you running electrostats with your Suprateks might want to chime in here...
Regards,
Steve.