Mark Levinson No. 20.6 vs. Krell KRS 200 vs. Krell KAS


Hi Everyone:

I am PERHAPS Contemplating Selling My ML No. 20.6's to Purchase a Set of Krell KRS 200's which I have always wanted. I am though Very Satisfied with the Sound of My 20.6's and I am afraid, that although the KRS 200's will undoubtedly improve the Bass Area, that this improvement will come at the expense of Fine Micro-detailing, where I believe, that the 20.'6s are some of the best amps perhaps ever produced.

I am from Europe, so I would like a 220-240V Version of the KRS 200's, Which is also what I have read, gives the best results sound-wise. Regarding though, which Power-Installation I should install, then I would like to ask, that since these Amps have a Power Consumption of 160Watts EACH, what kind of Breakers should I install in my house? I've heard, that if you install too small Breakers, then they will either have the Breakers cut out or they will sound too "Thin" and/or  "Hungered" for more Power. But what are "Too Small" Breakers? Would a Dedicated 20 Amp Breaker for EACH Amp be enough? I could install both 30, 40 or 50 Amp Breakers, but I have to say, that I Very Rarely Hear music at Loud Volumes. I Prefer to sit late at night and hear music at fairly low levels, so the question is, where to stop Breaker-wise? Perhaps both 30 and 40 Amp. Breakers is still Recommendable as well as Wise, but the question is, whether a 50 Amp Breaker for EACH Amp, isn't Overdoing it??? What do you guys say?

What is Your oppinions about this? Have any of you heard both The 20.6's and the KRS 200's either together side by side or with some time-span in between?

Another Question is regarding the KRS 200's in comparison to The KAS's. Some say that The KRS 200's are The Best Pure Class A Amps, Krell has ever made, but how does it compare to the KAS's, which have Sustained Plateau Biasing instead?

Any and Every Comments and Experiences are Very Welcome.

Have a Great Audio Day.

Sincerely Thomas.

128x128ferrari365gtb

Hi jafant:

Wow, that's quite a list. But all of the different brands you mention, make different gear. Pass Labs is mostly amplifiers, together with Krell, Where Sony ES can by almost anything, from amps to CD-Players to Vinyl, so what are gonna put where and what do you have as of now??

Sincerely Thomas.

Hi Dave and Thomas,
The work on the amps is carried out by a very good technician in Athens/Greece were I live. 
I  don't know the weight of the 100's as I do not have the manual and could not find any info on the net about them. "Gold" are the audio grade electrolytic caps by nichicon with affordable prices. They have really transformed the fpb 600 (which is one of the worst amps krell produced - slow and "muddy") to a really super fast analytical amp. As I have read the KRS's were built specificaly for Apogee's, that should explain the need for sweet sound. There is german guy who drives the huge apogees "The Apogee" wth 4 KRS 200 only for the bass and lamp amps for mids and highs.
In any case as the amps are old I believe a caps replacement is a must.
Sincerely Panos
OP -

Unless you want to change for the fun of it, just keep the 20.6s.  They are, as you already know, amongst the very best sounding amps ever made, and if you're happy with how everything sounds, changing them seems a recipe for disappointment. 

I had a 23.5 for a time (a long time ago!), and thought it superb.  If you're a Levinson fan, it's unlikely you'll find anything as satisfying - so just stay with them. 
Though this is an old thread I am too thinking about looking for a pair of Krell KRS-200 monos. This may be a real challenge as they are very rare in the UK
Hello Thomas,
Was very interested to read your thread concerning the comparison between the amplifiers in the thread. 
Did you ever acquire a pair of Krell KRS-200 mono amps? I am thinking of doing the same and am comparing them against the later Evo One or 900 Evo mono power amps?
Regards
Simon