I haven't participated in a while, but I just got back from a Trip to Western Russia. After hearing all the beautiful male vocal music in the Orthodox Cathedrals, I ordered a CD from Amazon, and I am totally enthralled.
The Male Choir of St. Petersburg--Vadim Afanasiev Conductor
The music is completely acapella, as is all music in the Russian Orthodox Church.
EMI Classics "Debut Label" 1999.
This CD is 69 minutes long, and features 20 gorgeous Russian tracks. The choir is 25 men, 4 of whom are "Bassi Profundi" They regularly sing solos down to the G below Low C.
"The Twelve Brigands"--Track 3 is my fav...