Ooohh... Mahler? good call.
How about some good 'ol Dmitri Shostakovich? I think it was #5. But my mind is fuzzy on such things.
Yeah, I gots Shosti #5... not a terrific recording, though. I think it the Vienna Philharmonic. True Shostakovich brass requires something along the lines of the Chicago Symphony or NY Philharmonic. Most European orchestral brass sections come across kind of, well, wimpy.
I do have a stupendous recording of Shostakovich #7 by Leonard Bernstein and the Chicago SO. The finale will have you wetting your drawers, I guarantee.