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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
ferrari365gtb's avatar
ferrari365gtb OP
20 posts
 

Hi gs5556:

Thanks for your Response. I agree with you in terms of that 20 Amp Breakers, should be enough, but there seems to be something devious about the KRS 200's, so I'm not sure normal Amp and Wattage Calculations apply here, but in theory at least, you should right.

Very Interesting about you No. 20.6's. I'm kind of in the same situation. I've had mine for 2½ years now and I Love Them a Lot. They do things, that in my opinion, no other amp can do, which is why I am so in doubt of whether to go for the KRS's, since, as I say in the beginning of this discussion, that I'm afraid, that I will miss out on Micro-detail and other things, that 20.6's just does so incredibly well, so it warms my heart to hear you say that. I would love for you to give me a comment on my other discussion and tell me your opinion on Pre-amps.

Here it is:

https://forum.audiogon.com/discussions/mark-levinson-no-28-compared-to-other-ml-pre-amps?highlight=Mark%2BLevinson%2BNo.%2B28

Hope to hear from you here as well as in my other thread.

Sincerely Thomas.

dlcockrum's avatar
dlcockrum
2,190 posts
 
Hi Thomas,

A few years back I had an electrician run two 30 amp dedicated lines and two 20 amp dedicated lines to my listening room. He used a larger gauge romex for the 30 amp lines, but the whole bill was only a few hundred dollars including romex and breakers.

I always use one of the 30 amp lines for my Krell FPB-600c (or for my Powercell with whatever gear including my amp(s) that I am currently using plugged into it) and the 20 amp lines for my REL subs.

Net is that I would recommend you go with 30 amp lines for high-current amplifiers and/or AC enhancers.

Best to you Thomas,
Dave
ferrari365gtb's avatar
ferrari365gtb OP
20 posts
 

Hi Dave:


Thanks so much for your comment. I will get as large Circuit-Breakers as possible as well as some 3/8 Cables, which is used for Induction Stowes, which usually are connected to 50 Amp Breakers. We already havce this in our house, so the Circuits MUST be able to take it, I just remembered, so it shouldn't be a problem. First though I have to sell my No. 20.6's and I am not sure, I can Emotionally, since they Definately are some ofg the best amps EVER Made and I Love Them To Death and it appears that gs5556 Agrees with me. I would love to try out the KRS 200's, but I must say, it is more curiosity, than it is a conviction, that it will better my sound, 'cus I really don't think it will. Know though I have put my 20.6's for sale, so we'll see, what happens???

Many Thanks Dave and I wish you a Great Audio Day/Evening with your Monster of a FPB600. By the way, I've always wanted the FPB750Mcx's...They Are Awsome...

dlcockrum's avatar
dlcockrum
2,190 posts
 
Hi Thomas,

The big Krell is definitely an amp to be reckoned with when it comes to sheer power and bass control . I bought the FPB-600c to master my Thiel CS-5i’s in the bass and it certainly does so, but, ultimately, I find it lacking in some areas that you seem to value. The Stereophile review of the CS5i’s in 1990 said that they brought the 20.5s to their knees, preferring the KSA-250 at that time.

You don’t say what speakers that you are using (or I missed it), but I would recommend that you audition the KRS-200s or similar-vintage Krell amps before selling your 20.6s. There are several amplifiers that I feel to be more musical and your 20.6s could well be one (two) of them, unless your speakers are too much for them. JMHO.

Best to you Thomas,
Dave

audiotroy's avatar
audiotroy
3,844 posts
 
The Krell MRA was the best amp Dan could make and a $19k T+A amp beat the stuffings out of it. I agree with your point about the MRA they were too big and too impractable.

T+A  is the largest high end company in Germany with 120 full time employees, they are huge about 10 times the size of Burmester and MBL, bigger than Krell, and Levinson. 

Their HV series integrated amp $19k was compared to $120k worth of CH Precision gear, and Allen Taffel couldn't hear much difference when he compared them.

Build quallity, parts quality, and technolgy are top notch, the brand compares to the world's finest gear yet is priced at a fraction of the price. 

Check em out will beat Pass as well, the products are amazing!
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