When I heard the Bes at Sound by Singer in MYC, they asked me if I would like to hear them with a sub. That was a gratuitous offer. When they played them with the Rel: WOW! It, surely, is a taste thing, but over time I believe the Bes will not deliver the bottom end for most. I spoke to Andy Singer about the Caravelles and my impressions, and he was interested, but (me) not being a dealer, the incentive to follow up ebbed. The Be tweeter was great. Berrylium? Amazing high end properties? Maybe, just good promo. The high end of the Caravelles was superior to my ears. Light, airy and as detailed as I've ever heard. Check 'em out. You can email me for their website or more info. I don't want this to sound like a sales pitch. Just one VERY happy audiophool.. BTW, YBA sounds amazing with the Jmlab Utopis line.