Messiaen: Pentecost Mass(DE 3147), it is an organ (stop laughing) that plays to as low as 20Hz which is not as good as 6Hz but we can't hear that low any way. Also check out Techmaster P.E.B.: Bass Computer Limited Gold Disk, LOTS of bass.
Speaker punishing bass
I was wondering if anybody had suggestions for quality recordings with frightening bass. I use several discs for auditioning speakers to see if they can stand up without distorting. My favorites are: Vic Wooten with the Flecktones, Marcus Miller, Copland's "Fanfare for a Common Man", Edgar Meyer's "Uncommon Ritual" and "Passage" by the Empire Brass Quintet. While bass isn't the last word it has made short work of some speaker choices. As always I look forward to any suggestions.