If you are auditioning only the tweeters of the speakers, then by all means choose from the above. If you want to hear some mids and bass as well (ie. the whole speaker), then try Benjamin Britten's recordings with the ECO on Decca. Karl Richter on DGG (an older recording) is also worthy of a listen.
(Boys, I think the frenzy for original instruments has mercifully past.)
Rufus
(Boys, I think the frenzy for original instruments has mercifully past.)
Rufus