The BMRs are large standmounts, which by spec perform at least as well as most towers I've come across. Usable bass response to the low 30s where a lot of towers don't even offer that.
These are designed for very wide dispersion rather than controlled directivity such as a horn. They are known for their flat FR and clean, accurate reproduction. Unlike B&W which have very contoured responses that color the sound, these are quite neutral and will faithfully reproduce the recorded event.
(Yes, I'm biased... I own 4 and am considering building another if I can't find one for sale!)
This is an older version (the woofer has since been replaced):
Philharmonic Audio's BMR Philharmonitors use a 3-way design with a very special driver outlay that has audio enthusiasts excited about the potential performance advantages that it could offer Read on.
www.audioholics.com
This was yet a different previous version, the original one iirc:
Philharmonic BMR Bookshelf Speaker Review
www.erinsaudiocorner.com
Here is Dennis' website with details on the newer version featuring the SB Acoustics 6" Ceramic Woofer:
www.philharmonicaudio.com