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Old 18th April 2006, 04:40 PM   #1
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Default 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.
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Old 19th April 2006, 07:52 AM   #2
AndrewT is offline AndrewT  Scotland
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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.
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Old 19th April 2006, 02:31 PM   #3
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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 ?

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Old 19th April 2006, 02:41 PM   #4
Leolabs is offline Leolabs  Malaysia
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Class A design too???
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Old 20th April 2006, 04:31 PM   #5
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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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Old 20th April 2006, 04:38 PM   #6
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il y a aussi le PLH.
It doesn't count how one deals with winning, but how to handle a loss (© DjT)
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