B&O is certainly beyond Bose in tonal accuracy and general fidelity. Of all their speakers, I think the Beolab 8000 (the "organ pipe") is the most suitable for a critical listener. However, it needs good signal coming to it. Most people who have that speaker underserve it. Truth is, it becomes something quite credible within its tonal and dynamic range, if fed by exceptional sources and a good tube preamp. B&O's own associated gear can't live up to the speaker, leaving it sounding constrained and smeared. The 5 has similar merits too.
Phil
Phil