Best sounding cd in your collection

What is your best sounding cd for reference.Pick 3.(1)..voices(male/female)(2)..soundstage/imiaging.(3)..Bass/treble
The Original Jazz Masters Series Vol. 1 thru 5, 5 CD's per Volume. These are 50's, 60's, and a few 70's jazz recording issued on CD from 1993 to 1995 by Black Lion records. Great performances of course but the sound is a real surprise.
Yea, that is the German recording. Great sound & great music! Highly recommended to all.
simply beautiful :
1) Shawn Colvin ~ "Cover Girl"

the incredible acoustic guitar work of :
2) Martin Simpson ~ "Cool and Unusual"

and the sublime :
3) Charlie Haden / Hank Jones ~ "Steal Away: Spirituals Hymns & Folk Songs"