"D" amps, general discussion who's 1 and why?

i have auditioned two versions--the nuforce 9's and the raptors. both amps retail for about $5000. they remind me of a typical transistor amp. they are capable in the region below 200 hz and are deficient above 200 hz.

hi ait:

i auditioned the raptors, as my friend owns a pair.

did you have a problem with the upper midrange/lower treble ? i liked what the amps did with the bass, but i found the upper midrange/lower treble unpleasant.