Price Paid:  $3300.00 from used

Summary:
i'm a chief of lui digital (makes handmade tube audio/digital system)

i bought this amp about 20 times.....hmmm...

there's two kind of 100s' transformer

one is troidal shape, another is r-core (square type)

the former is better in every sound factor.

i like this amp because of it's hiend standard sound, especially no-sharp-and-transparent-mid range and so forth..

i like krell 50s, 100s, 250, 300s, fpb 300c, 400cx

frankly speaking...

the mesurement of audio is not importent.

but if misurement is suitable with it's sound quility, the amplifier can moremusically impact most listner..

not many tr-amp can plays well the 'cantata or missa'

100s is rare amp to classicphile

Strengths:
musicality and accuracy and misurement

Weaknesses:
different transformer of 100s' along with it's manufactured year.

Similar Products Used:
hundreds

Price Paid:  $1700.00 from used UK

Summary:
I was once told that once you have experienced the warmth and detail that only a Krell can produce then you will never use anything else, so far so good, for me it is still to what all others are judged, I am still using my beloved KSA100 and it has never let me down, today there are I'm sure better amps out there but when played side by side could you honestly say one is better than another at this level how much more would you pay to convince yourself what you are hearing is actually better, eg Audio Note 7watt power amp some years back priced at £60K was it better??? if so... it was not £55K better, stick to the classics they are affordable and were all state of the art at one time,

Price Paid:  $3000.00 from Used

Summary:
Nice..... simply nice. It drives my Snell A3i with ease, and I have not yet lacked power. Detailed but still laid back in nature. I simply love my new amp. Go buy one !

Strengths:
Stamina, power, ambiance, built like a sub...

Weaknesses:
May lack a little body compared with the best of tube amps.

Similar Products Used:
Audio Research d-110, Zapsolute Mk2 mono blocks, Electro Companiet 180W mono bloks ( can´t remember the type! ) EAR 509 and 519 mono´s, Holfi Power NB2

Price Paid:  $3811.00 from 8600

Summary:
I've found the KSA100s to be a perfect complement for my Boston Lynnfield 500L (upper/mid arrays). The KSA100s is exceptional in accurate rendition of the human voice, and all instruments - natural or synthesized - which I have been able to find. I'm currently using a Sony SCD-777es CD player (with SACD) and find that the SACD material is very, very detailed and subtle on this system

Strengths:
Clarity, openness, lack of coloration. Transparency, detail, rock solid imaging, very quiet

Weaknesses:
(qualified), could use more power

Similar Products Used:
Adcom, Threshold, SAE,Bel Canto,Plinius

Price Paid:  $1600.00 from Used

Summary:
Excellent amplifier. I could not imagine needing much more power. It runs the Nautilus 804's perfect.

Strengths:
Clean, transparent, Well built

Weaknesses:
Heavy

Similar Products Used:
Levinson No 331, Krell kav250, Krell KSA200s, Parasound