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What voltage should I set for my M3?

post #1 of 7
8/30/05 at 6:57am
Thread Starter 
My build is coming along very nicely. All that's left is to case up the amp, once the case arrives.

Today I completed my tread power supply. What voltage should I set it for? Another headfier has recommended 30 volts.

However, there are a few variables that may affect that setting.

My cans will be HD590's, which are fairly easy to drive.

I couldn't source 2w 1R resistors, so I used 1w instead.

Currently I have installed AD8610's. Down the track, I will be trying the 637/627 combination.
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post #2 of 7
8/30/05 at 7:08am
I see no reason to go beyond 24 volts.. but of course I don't know what transformer you are using so....
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post #3 of 7
8/30/05 at 7:16am
rs has meggitt 2w resistors and other 3w resistors.
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post #4 of 7
8/30/05 at 7:17am
Thread Starter 
Quote:
Originally Posted by MisterX
I see no reason to go beyond 24 volts.. but of course I don't know what transformer you are using so....

Torroidal, 240/12 + 12, 50VA, wired in series:

http://www.altronics.com.au/index.as...=item&id=M5012
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post #5 of 7
8/30/05 at 7:23am
with that op amp id stick to 24v as well.
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post #6 of 7
8/30/05 at 7:27am
Before I ask you what Heatsink you are gonna use it may be better if you just plug the numbers into Tangents fuzzy calculator and see what you come up with.
http://tangentsoft.net/elec/ps-est.html
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post #7 of 7
8/30/05 at 10:06am
Quote:
Originally Posted by Lavalamp
Currently I have installed AD8610's. Down the track, I will be trying the 637/627 combination.
Don't go over 27V with the AD8610s. The D1 and Q5+/- drops will make the opamp "see" a bit over 24V across its supply pins, which is near its rated limit.
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