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  Krell KSA 50 vs. todays ss amps?
I have never heard a KSA50 but they get great press. Has anyone who has heard one compared it to say the Halcro( which also seems to get great press) or to any of todays ss amps, like Edge or Mark L etc.
Daveyf  (System | Reviews | Threads | Answers | This Thread)

  Responses (1-19 of 19)
Click title to read one, or click date to read all below it.

10-28-04   Some reading and a picture: ...   Sogood51

10-28-04   Dave, a well designed amp is a well designed amp - regardle ...   morbius@

10-28-04   Not sure if you're talking about the original ksa50 (and 50m ...   Rcprince

10-28-04   Perhaps, the sweetest sounding amplifier in krell line up at ...   Ecclectique

10-29-04   Dave, thanks for the links, but that's a 50s and not the amp ...   Daveyf

10-29-04   Daveyf, i used to own a ksa50. it was not "all that&quo ...   Sbank

10-29-04   I traded in my ksa 50 for an 80; the 80 indeed did have more ...   Rcprince

12-12-04: Edwards
Over a 15 year stretch I have owned 2 KSA-50MKii's. This amp and it's 100 watt Mono version KMA-100mkii put Krell on the map and in the homes of reviewers. These amps set the bar back in the late 80's and early 90's. The follow on series took the cooling fan out and placed the output transistors on the convection fins. The KSA-80B, KSA-200B, KMA-160B, were some of the finest amps that Krell made. These units were raved about by reviewers. After that Krell was on a mission to take the labor costs out of the production of it's amps. This made good business sence for Krell, but after the 250, the lush trademark sound was removed, along with the cost of manufacture. The S series was not reviewed well at all. Within months of the introduction there were a few units for sale each month in the back of Sterophile (well before the A-gon days). That series of product cost Krell, as reviewers were then clamoring over the new Levinson 331-333 amps.

I have compaired the KSA-200b and the KMA-160b to the new 250MCX and I prefer the sweetness of the older amps. You dont see too many of the older units moving here on a-gon, So I can not be alone on my assessment.

The fan units always get knocked becuase people contend that they wear out. In the 8 years that I had owned fan units, I never had a problem with a fan. I would annually, carefully remove the cover and blow out any dust. These were not cheap fans that Dan choose to use, and they do not wear out like a $5 bearing-less motor. Krell still has replacement fans if you do have a problem. Bottom line is that I would not shy away from this technology at all, and for the price it is a bargin.

Edwards  (Threads | Answers | This Thread)

12-14-04: Speedfreak
I think that the older Krells like the KSA50 are better sounding then the newest Krells being manufactured now. The older Krell has a very sweet sound with lots of presence and midrange warmth. It delivers the musical goodies. In comparison, the Halcro I think is a little too analytical sounding. It's too clean and sterile. Like wearing a condom every time you listen to music. I would rather get down and dirty with the Krell.
Speedfreak  (Threads | Answers | This Thread)

12-18-04: Yuri777
I am in the hunt for a ksa-50
Does anyone know what the difference between the ksa-50 mk i and the mk ii models?


Yuri777  (System | Threads | Answers | This Thread)

12-18-04: C123666
If you are looking at the KSA50 I strongly urge you to also look for the comparable Threshold SA50. An original Nelson Pass design it usually is less expensive than the Krell and just as good; some say better but I suspect they are Threshold owners and biased. I've owned several Threshold products and, were I to go solid state again, it would be Threshold and/or Spectral. The used Threshold presents a wonderful value. Used KSA50 is a pure class with 50 watts that work down to 2 ohms or less easily. They typically trade for around
800 used.

C123666  (System | Threads | Answers | This Thread)

12-18-04: Sogood51

There is a guy at the Audio Asylum forum (Abe Collins) that has an Ksa-50...It my be the mk-2 but I'm not sure.

Anyway, I read a post of his the other day that stated he may replace it because it is to large to fit into a cabinet and he wants soom floor space.

It would not hurt to shoot him an a search at that forum for his e-mail address. He may or may not be selling the Krell but at least will know you are interested if he does sell.



Sogood51  (System | Threads | Answers | This Thread)

12-18-04: Yuri777
I already found a KSA-50 mk i for sale, but i am wondering if i should wait to get a mk ii amp, which is why i would like to know what the difference between both models is.

Yuri777  (System | Threads | Answers | This Thread)

12-18-04: Newbee
Yuri, Read the reviews in Stereophile on line about the KSA 50S - they describe the differences between it and the original KSA. It seems that the reviewer thought that the original was a warmer and more rounded amp, more musical if you will. The KSA 50S was a bit more hifi (my terms). Anyway, read it.
Newbee  (System | Reviews | Threads | Answers | This Thread)

12-18-04: Yuri777
Yes, i did read the reviews of the KSA-50 vs. KSA-50S.
But those are two completely different amps.
I am trying to find out the differences between the KSA-50 Mark I and KSA-50 Mark II models.

Yuri777  (System | Threads | Answers | This Thread)

12-18-04: Yuri777
C123666: Abe Collins owns a Krell KSA-50S, which is not what i am looking for. I am looking for the original KSA-50 mk ii.
Thanks anyway.

Yuri777  (System | Threads | Answers | This Thread)

12-20-04: Rcprince
My recollection is that the Mk II had some changes made to it to make it more stable--I think if you shot an e-mail or made a call to Krell they could probably tell you pretty quickly.
Rcprince  (Reviews | Threads | Answers | This Thread)

12-21-04: Edwards
Trust me....You want a MKII model.... The difference between the threshold and the KSA-50 might be as simple as you can still get the KSA-50 repaired. I dont know if Threshold is still around, or if they would have replacement parts. The Sony V-fet amps are great amps, but try to find a replacement output transistor for them. You are out of luck.

That is the beauty of buying an older Krell or Levinson.

Edwards  (Threads | Answers | This Thread)

02-16-12: Jimmyblues
I owned a Krell KSA 50 in the early 90's, bought used from Walt Bender's AudioMart. Sorry to hear about Walt's passing - may he rest in peace.

The KSA 50's circuit toplogy is a simple layout which incorporates excellent quality components.

It's sound is neutral in that it doesn't seem to add anything to the music. Live radio broadcasts played through the Krell and a Levinson ML-6A preamp, via some of the tuners I owned back then, including Marantz 10B, Day Sequerra Studio and Naim NAT 01, were absolutely stunning.

As good as anything I have heard from master tape or LP.

The Krell was one of those special audio components that really stands out in this hobby, and still rivals the best amplifiers ever made.

You may get amp's that are more powerful, but few that sound any better.

Moreover, while the Krell KSA 50 is one of the best sounding solid state amp's ever made, it doesn't have the lush midrange of good tube amplifier.

For example, my Quicksilver 25 watt monoblocks have a better midrange in this respect, while lacking the overall dynamics of the Krell KSA 50.

I have never found a solid state amp regardless of price, that can match the lush midrange of a good tube amp.

The KSA 50 is one of the few pieces of gear that actually approaches this type of midrange, along with other amps of the era such as the Classe DR-2, DR-3, Bedini 25, and Electrocompaniet 25 and series II amplifiers - each of which has established a loyal and cult-like following.

In retrospect, having owned each of the above, I actually regretted having the KSA 50 and an old Classe DR-3 VHC pure Class A bias amp from the early 1980's the most.

The DR-3 VHC was assembled like a fine Swiss Watch, that to this day easily ranks as one of the best sounding amplifiers this author has ever heard - (albeit a bit dark) - regardless of price.

As for the KSA 50, several audio reviewers had opined at the time this amp was first offered, that the KSA 50 would become a classic, and it certainly has done so.

The challenge nowadays is finding an owner who'll part with their KSA 50.

Jimmyblues  (Answers | This Thread)

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