I have demo'd them extensively in my home first against the Matrix 804 and 805, and more recently against the Nautilus 804. The midrange of the P5 was better than the M804, which (the 804) sounded uneven in comparison playing string instruments. They were more open and airy than the M805. The P5 have the same strenghts as the Nautilus 804 in the highs with vocals, etc, but are warmer/softer in the midrange, (the N804 sounded harsh in comparison).
I also tried them against the CDM-7SE which in some regards replaced them. The CDM-7 were dark and very closed in when compared. Not even in the same league as the P5.
The P5 are very sensitive 90dB and I know people who runs them with low power SET tube amps successfully.
Most B&W speakers sound good when run with good equipment regardless of price. I heard the DM602 played on high end equipment. I thought the sound was coming from some high-end speakers next to them. The bass can be a little muddy on the 602s with cheap gear. Even the $250. DM302 dip down to 3.2ohms, which will cause some cheap amps problems. I assume Stereophile used good equipment when they won the Editor's Choice award.

