NAD takes on the Krell Beast 1800 vs 6700??

my experience with krell has been more positive. i have krell ksa 100s , audible illusions modulus 3 pre-amp, micromega dac and transport and apogee stage...results: 3 D imaging, sweet highs, warm and palpable midrange. bass was good but could be tighter. i am rather pleased with the sound. i've heard the ksa 250 in the past and thought it was a nice amp though i did not compare it directly with NAD.

I like Celtic66's description of older Krells the best: quick, solid, and harsh. Amen to that! They do make great subwoofer amps, but even there they can be equaled by any number of amps for a whole lot less money and electricity. Of course, like everything else, Krells have gotten better. The KSA series is really showing its age.

It would perhaps be unfair to critique all older Krell amplifiers as being of one sound. I remember the KSA-250/150 sounding very different from the earlier KSA-200/80 models. The older KSA-200/80 sounded impressive, bold, and high impact, while the KSA-250 was all about control and reserve. I felt the KSA-250 was slightly soft in its upper mid to high frequency regions; this was especially noticeable when compared to the Krell MDA-500 monoblocks. I would guess the combination of the laid-back KSA-250 and the Transparent PC was not a great match with your friend's existing system. Maybe some minor tweaks would have brought it to life...

Yeah,blame the power cord!
I did expect this kind of reaction so Im not surprised.
OK,lets try a different power cord and some tweaks and lets see if we can make this 150 lb.beast that cost $6700 TEN YEARS AGO (whats that in todays market?) sound as good as a $1800 'GONAD'

why dont you compare it to a newer amp like fpb200 etc, anything 10years old is most likely not going to hold up well against new even lower priced gear. a 10 year old computer or car would easily show its age compared to new. just shows you get more bang for your buck now. this is apples and orangesnot really a good comparison,being a sound engineer for ml ive seen world class equipment made to sound bad and lesser gear made to sound very good. it all depends on who and how it is all set up and what the listener prefers and what he or she is acustume to hearing. high end is an acquired taste, sometimes at first listen little things are not picked up on . it takes a while to get use to correct sound versus hi fi which almost everyone starts with. if the nad sounds better to you great, but i wouldnt blame krell on a bad product. krell ml arc vtl bat bryston etc are all world class products,just different, ferrari porsche chevy bmw all make great cars, choice is many,all im saying is keep an open mind when trying out gear which is always difficult cause every time something is changed in a system there is a cause and effect which sometimes has nothing to do with the piece that has been added or taken out. by the way network cables or power cords in our experience do more harm then good,most manufactures only put detatchable cords on because of demand for them, we all agree they change sound whether better or worse dont know, but i can tell you lots of manufactures are going back to captive cords to eliminate the change of the sound of their gear by someone else. all gear is tested with the cord supplied,any change changes all specs as when it was built better or worse cant say but not as designed.enjoy your learning on sound and enjoy the music.regards ml engineering