Upgrade of a Technics A-800C MK2 - diyAudio
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Old 22nd June 2012, 01:34 PM   #1
E30NA is offline E30NA  Denmark
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Join Date: May 2011
Location: Denmark
Default Upgrade of a Technics A-800S Mark2 Class AA

Hi guys

I have bought this Technics A-800S Mark2 power amp very cheap, and was wondering if anything could be done to make it better.
I got help in here a wile back to modify an older Denon amplifier, and i realy liked the result. Now i have invested in a DAC Magic Plus, and because it can funcktion as a pre amp, i am thinking about sending the Denon on penssion, and go with a purely power amp.
About the Technics- at first i didnt fancy the sound, but now that i have listened to it for a litle vile, i have come to like its qualitys like a good solid bas at lower levels and it has a good amount of detail. But the sound is a bit to bright i think.
On the Denon i changed the rectifier bridge, opamps and the psu electrolytes, and the result was quite good.

As this amplifier is class A-A, i dont have a clue of were to begin with this one. The obvius would be to change the rectifiers and the electrolytes i think, but i have heard something about changing the doides to. Can anybody help me out on this one?

Last edited by E30NA; 22nd June 2012 at 04:28 PM.
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Old 22nd June 2012, 01:41 PM   #2
E30NA is offline E30NA  Denmark
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Join Date: May 2011
Location: Denmark
I have a manual for the amplifier, but it is to big for this forum. If anybody wants to see it, i can emeail it to them

BR
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Old 23rd June 2012, 05:18 AM   #3
E30NA is offline E30NA  Denmark
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Join Date: May 2011
Location: Denmark
Here is the manual: http: http://www.slideshare.net/E30NA/hfe-...sea800sservice

BR

Last edited by E30NA; 23rd June 2012 at 05:20 AM.
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