The Ricardo Muti version of Carmina Burana---minimalist miking, huge dynamic range, extremely lifelike sound. Watch out, the first sound on the disc is a tympani slam that will scare you!
Angel Seraphim Classics CDR 7243 5 73573
For deep bass, the Brahms Deutsches Requiem, Telarc, cond Robert Shaw and the Atlanta Symphony. Opening bars have pedal organ and double basses, very clear sound.
On the Orff, Arlene Auger sings what might be the longest held note by a soprano!
Telarc CD-80092