If you can deal with four line inputs I HIGHLY recommend a used Pass Labs Aleph P preamp (usually sold between $1000 and $2000 depending on age and remote). They sold for $4000 new, are built like tanks, and they sound amazing. I doubt the ones you mention will compare. The Adcom model is actually a Nelson Pass design, so it will be like a junior version of the Aleph P.
One other bonus...Pass Labs is excellent to deal with as far a support goes.
One other bonus...Pass Labs is excellent to deal with as far a support goes.