amp upgrade

edisraf · 5th February 2006, 06:18 PM

what would I have to do to upgrade a NAD S300 amp?

myhrrhleine · 5th February 2006, 07:26 PM

Make changes to it.

edisraf · 5th February 2006, 07:53 PM

what kind of changes?

myhrrhleine · 5th February 2006, 08:20 PM

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?

edisraf · 6th February 2006, 07:45 AM

the amp seems lifeless, I get the s500 cd player with bal. outputs next week we will see then

Dimitar Kyuchuk · 11th February 2006, 08:45 PM

Would you post the schematic of your amp?

Tube_Dude · 11th February 2006, 09:16 PM

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..

Dimitar Kyuchuk · 12th February 2006, 11:22 AM

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

.

Tube_Dude · 12th February 2006, 05:00 PM

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!

5th February 2006, 06:18 PM	#1
edisraf diyAudio Member Join Date: Feb 2006 Location: buffalo NY	amp upgrade what would I have to do to upgrade a NAD S300 amp?

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5th February 2006, 07:26 PM	#2
myhrrhleine diyAudio Member Join Date: Jan 2006 Location: Avalon Island	Make changes to it.

5th February 2006, 07:53 PM	#3
edisraf diyAudio Member Join Date: Feb 2006 Location: buffalo NY	what kind of changes?

5th February 2006, 08:20 PM	#4
myhrrhleine diyAudio Member Join Date: Jan 2006 Location: Avalon Island	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?

6th February 2006, 07:45 AM	#5
edisraf diyAudio Member Join Date: Feb 2006 Location: buffalo NY	the amp seems lifeless, I get the s500 cd player with bal. outputs next week we will see then

11th February 2006, 08:45 PM	#6
Dimitar Kyuchuk diyAudio Member Join Date: Aug 2004 Location: Bulgaria	Would you post the schematic of your amp?

12th February 2006, 11:22 AM	#8
Dimitar Kyuchuk diyAudio Member Join Date: Aug 2004 Location: Bulgaria	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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