Krell KSA 50

nicolas888 · 18th April 2006, 04:40 PM

I am on the way to built a
JLH Class-A 40Watts amplifier

after built the JLH Class-A 10Watts first version (1969).

I saw a lot of post about the Krell KSA 50 so I am wondering if there is a different between this 2 class A implifier.

Did someone built both ?

Anybody have a felling about that ?

Thank you.

AndrewT · 19th April 2006, 07:52 AM

Hi,
the Krell is a push pull ClassA design.

The JLH is a single ended ClassA design with a current sink that is not quite constant (sort of tracking with signal level).

I would expect them to sound quite different.

Each has it's own adherents.

I am a bit of a JLH fan even though I have never built any of his circuits. He wrote very clearly and is relatively easy to understand.

nicolas888 · 19th April 2006, 02:31 PM

Thank for your answer Andrew

I guess the best way is to build 1 of each.

I also noticed the 'killer amp' on the forum wich will be my third one.
Anybody have other informations ?

Thanks

Leolabs · 19th April 2006, 02:41 PM

Class A design too???

nicolas888 · 20th April 2006, 04:31 PM

killer amp can be class A and AB.
Not competly sure but almost sure..

I am sure the JLH Class-A 40Watts amplifier will be good , after I don't know for the 2 others ones.

jacco vermeulen · 20th April 2006, 04:38 PM

il y a aussi le PLH.

18th April 2006, 04:40 PM	#1
nicolas888 diyAudio Member Join Date: Feb 2006 Location: Canada	Krell KSA 50 I am on the way to built a JLH Class-A 40Watts amplifier after built the JLH Class-A 10Watts first version (1969). I saw a lot of post about the Krell KSA 50 so I am wondering if there is a different between this 2 class A implifier. Did someone built both ? Anybody have a felling about that ? Thank you.

19th April 2006, 07:52 AM	#2
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Hi, the Krell is a push pull ClassA design. The JLH is a single ended ClassA design with a current sink that is not quite constant (sort of tracking with signal level). I would expect them to sound quite different. Each has it's own adherents. I am a bit of a JLH fan even though I have never built any of his circuits. He wrote very clearly and is relatively easy to understand. __________________ regards Andrew T.

20th April 2006, 04:38 PM	#6
jacco vermeulen diyAudio Member Join Date: Oct 2004 Location: At the sea front, just under Rotterdam	il y a aussi le PLH. __________________ Looks like Sponge Bob has killed another thread.

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19th April 2006, 02:31 PM	#3
nicolas888 diyAudio Member Join Date: Feb 2006 Location: Canada	Thank for your answer Andrew I guess the best way is to build 1 of each. I also noticed the 'killer amp' on the forum wich will be my third one. Anybody have other informations ? Thanks

19th April 2006, 02:41 PM	#4
Leolabs diyAudio Member Join Date: Dec 2004 Location: Bukit Mertajam	Class A design too???

20th April 2006, 04:31 PM	#5
nicolas888 diyAudio Member Join Date: Feb 2006 Location: Canada	killer amp can be class A and AB. Not competly sure but almost sure.. I am sure the JLH Class-A 40Watts amplifier will be good , after I don't know for the 2 others ones.

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