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class A amp wanted
class A amp wanted
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Old 17th July 2007, 10:13 PM   #1
paul.42 is offline paul.42  United Kingdom
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Default class A amp wanted

wanted class A amp upto 200watts per channel into 8ohms w.h.y.you can email me details of anything of interest to
paul39ish@fsmail.net
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Old 20th July 2007, 11:51 AM   #2
paul.42 is offline paul.42  United Kingdom
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still looking
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Old 22nd July 2007, 06:42 AM   #3
paul.42 is offline paul.42  United Kingdom
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now sorted thanks for the replies
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Old 24th July 2007, 08:17 AM   #4
Dxvideo is offline Dxvideo  Turkey
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I think you cannot have any answer. Because I am working on a 20W Class A project (just 20W) and I cannot handle even its thermal problems. It needs 0.2 C/W heatsink.
I cannot imagine how much heatsink does a 200W Class A need...
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Old 24th July 2007, 08:51 AM   #5
finwbu is offline finwbu  Finland
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class A amp wanted
Default KRELL KSA100

on ebay price it´s to high...

http://cgi.ebay.de/Krell-KSA-100-End...QQcmdZViewItem

He say´s weght will be 70kg
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Old 24th July 2007, 08:57 AM   #6
Dxvideo is offline Dxvideo  Turkey
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And its just 2 x 50W as I know... Not 200W!
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Old 24th July 2007, 09:09 AM   #7
AndrewT is offline AndrewT  Scotland
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How much power does the KSA160 put out in ClassA?
It might be getting close.

But seriously, 200W of pushpull ClassA is some target you've set yourself.
Single ended would be even worse for heat dissipation.

The 100W of ClassA from the KSA100 dissipates about 270W per channel and probably runs at about 600 to 700W when ticking over.

A 200W amp will probably be double this. Yes, about 1400W of quiescent consumption and the same heating power pushed into the listening room.
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Old 24th July 2007, 09:12 AM   #8
jacco vermeulen is offline jacco vermeulen  Netherlands
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An Englander who desires that much heat should try to locate a duo of Musical Fidelity A570 dinos.
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Old 24th July 2007, 09:28 AM   #9
AndrewT is offline AndrewT  Scotland
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But what value of ClassA current can the MF570 put out?

MF usually went for high bias ClassAB in their more expensive amplifiers.
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Old 24th July 2007, 09:38 AM   #10
jacco vermeulen is offline jacco vermeulen  Netherlands
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The monoblock A570 can be configured to run in full Class A.
A duo weighs in at around 450lbs though.
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