Help: Aleph3 PS Upgrade To 50V

Jay · 25th August 2003, 08:12 AM

Hi all,

I want to replace my Aleph3 trasformer with 50V rail. I believe that the IRF can handle the Vds. To achieve a comparable result, what should I pay attention to? Is there a chance that the sound quality will be worse? (And why?). To achieve a better sound, what strategy I should use? I guess I will feed the Aleph directly with 50V and add a regulator for front end supply.

Taco · 25th August 2003, 08:27 AM

The other aleph's (2,4,5) have higher rails, maybe you can check those for reference. Other people say that higher bias gives better sound.

MikeW · 25th August 2003, 04:08 PM

I don't think the voltage will be the problem. The power per device may be. I would take a look at the Aleph 2 schematic for resistor changes. The heatsinks will need to be much bigger.

25th August 2003, 08:12 AM	#1
Jay diyAudio Member Join Date: Feb 2003 Location: Jakarta	Help: Aleph3 PS Upgrade To 50V Hi all, I want to replace my Aleph3 trasformer with 50V rail. I believe that the IRF can handle the Vds. To achieve a comparable result, what should I pay attention to? Is there a chance that the sound quality will be worse? (And why?). To achieve a better sound, what strategy I should use? I guess I will feed the Aleph directly with 50V and add a regulator for front end supply.

25th August 2003, 04:08 PM	#3
MikeW diyAudio Member Join Date: Sep 2002 Location: North of Boston	I don't think the voltage will be the problem. The power per device may be. I would take a look at the Aleph 2 schematic for resistor changes. The heatsinks will need to be much bigger. __________________ MikeW

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25th August 2003, 08:27 AM	#2
Taco diyAudio Member Join Date: Nov 2002 Location: Place in the Netherlands	The other aleph's (2,4,5) have higher rails, maybe you can check those for reference. Other people say that higher bias gives better sound.

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