Well, I happen to have a copy of Between the Sheets, so I listened to it on just the M60's. You're right - very nice! If you like that, I bet you'll also like Ry Cooder and Manuel Galban's Mambo Sinuendo, which also sounds gorgeous on these speakers. Lots of latin percussion, great guitar, vocals, & strong bass. My favorite album of last year.

A few reviews:
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