B&K Reference amps ... Opinions please


Hmmm... These amps get very little discussion, and I'd love to know why. I understand how they were marketed, one step up from products like NAD and such, but I'd like to hear more than just a general opinion if possible.... What were their strengths and weaknesses ? How would you catagorize their overall sound ? Do they have any strong inherant attributes ? I'm speaking of the Reference series, such as the EX4420 and such.
Thanks for your opinions.
timtim
Please keep in mind that B&K makes electronic test equipment, so audio components is not their only arena. However, I would rather own their test equipment than any of their SS power amplifiers due to others out there that simply sound better for not that much more, or even less, if purchased used on Audiogon, Ebay, personally, etc.
Parasound Halo's, Pass Lab, Musical Fidelity. They make amplifier's with sound qualities you're looking for.