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Old 5th February 2006, 07:18 PM   #1
edisraf is offline edisraf  United States
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Default amp upgrade

what would I have to do to upgrade a NAD S300 amp?
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Old 5th February 2006, 08:26 PM   #2
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Make changes to it.
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Old 5th February 2006, 08:53 PM   #3
edisraf is offline edisraf  United States
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what kind of changes?
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Old 5th February 2006, 09:20 PM   #4
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You might consider what you really want.
One can change a few parts, maybe to higher grade capacitors, different transistors, etc.
One could put in larger power supply filter capacitors.
Or one could 'gut' the thing, keeping the case, power supply, and heatsinks, yet replacing everything else.

What is it you seek?
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Old 6th February 2006, 08:45 AM   #5
edisraf is offline edisraf  United States
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the amp seems lifeless, I get the s500 cd player with bal. outputs next week we will see then
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Old 11th February 2006, 09:45 PM   #6
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Would you post the schematic of your amp?
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Old 11th February 2006, 10:16 PM   #7
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Quote:
Originally posted by edisraf
the amp seems lifeless,
Nad S300 , one more amp with current feedback in the voltage gain stage and no overall feedback ... it was to be expected..
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Old 12th February 2006, 12:22 PM   #8
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Well, I still think that the amp perhaps is not so lifeless ... you can ad an input stage diferenitial amp - either with a pair of high quality transistors or with an opamp. Thus, I supose, you can insert an overall voltage feedback, but of course I can't be sure before seeing the schematic .
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Old 12th February 2006, 06:00 PM   #9
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Quote:
Originally posted by Dimitar Kyuchuk
Thus, I supose, you can insert an overall voltage feedback, but of course I can't be sure before seeing the schematic .
Yep!
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