Well, it's been about a week with my new Level (which now has the oak grill over the natural aluminum--stunning!) and I thought to post a few impressions:
Level is far, far more powerful than I recall BS1 being. This makes sense as it has literally 2x the 4" drivers plus an additional tweeter and full-range. For anything other than a large, open floor plan greatroom, I have to imagine the Level is absolutely adequate and this makes me think how A9 and Edge must really benefit from bigger rooms in which to breathe. If the Level is this powerful, those speakers (and Balance) must be monsters.
I remember BS1 being very "airy" in the upper range, perhaps moreso than Level, which I attribute to the acoustic lens technology. But audio memory is fallible and in every subjective measure, Level sounds awesome. I think the fullness of the sound, thanks to the "gen 2" 4" woofer is responsible for most of the positive impressions--though it sounds great throughout the entire range.
Level in natural aluminum with the oak grill is gorgeous; I still prefer the "doesn't look like a speaker" aesthetic of BS1 more but the Level is very, very beautiful with the oak grill.
Overall, I think either speaker would be a welcome addition but I believe I am feeling that the Level really, really out-muscles BS1. It seems Level is very much a new generation of B&O products, which, among other things, make very big sound from relatively small drivers (e.g., the Level and Stage's new 4" woofers, the BL28's new 6.5" woofer). It makes me wonder what is next for the BeoLab range in terms of BL17 and BL50.
If I had been able to steal a BS1, I would have gotten it and been very happy, I'm sure. But I happened to be able to steal a Level and for the price, I would not have paid more for a BS1 at this point. While not as attractive an overall design to me versus BS1, Level in silver/oak is gorgeous and with the performance superiority versus BS1, I'm very happy it all worked out this way.
Now, if Mozart software could just have Alarm and Timer functions added...