Thanks, everyone, for your help. The Proteus is in excellent condition. I cooked it on my audiodharma cable cooker for about 18 hours and installed between the IO Signature phono stage and the K-1xe preamp.
I've been listening to it for a few days. Very wide and deep soundstage with stable images. Excellent mid-range with nice highs and mid-base. Does not have the full, rich sound or deep base of Dominus Ferox or Virtual Dynamics Revelation 2, but seems faster than the Dominus and more relaxed than the Rev 2. It is definitely not fatiguing to listen to for hours.
Still trying to decide which of the 3 I like best. At this point, it depends on the music and my mood.
Ed
I've been listening to it for a few days. Very wide and deep soundstage with stable images. Excellent mid-range with nice highs and mid-base. Does not have the full, rich sound or deep base of Dominus Ferox or Virtual Dynamics Revelation 2, but seems faster than the Dominus and more relaxed than the Rev 2. It is definitely not fatiguing to listen to for hours.
Still trying to decide which of the 3 I like best. At this point, it depends on the music and my mood.
Ed