I didn't say the Stage is cleaner, it does have a deeper and more refined bass, but I agree that overall the Beosoud 2 sound is more crisp. =
I think the BeoSound has deeper bass, if set to 'free' and sat on the right kind of flooring - try a wooden floor, for example. It has more of an impact than the Stage for music, for me.
BeoSound 2 is a better speaker than the Stage for music, but the Stage has a 'wider' sound and more suited to movie audio where the sound is designed to be 'separated'.