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MAKING A DECENT HI-FI POWER SUPPLY FOR XONAR ESSENCE

post #1 of 316
5/25/09 at 7:23am
Thread Starter 
Hi all interested!
I am very fascinated about the sound card but I think the power supply in the computer can be a major factor for making the card even better.

So I plead to all of you that have knowledge and interest to make together a power supply that will improve the sound of the card.

Thanks.

Marko
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Gear mentioned in this thread:

ASUS Xonar Essence STX Virtual 7.1 Channels PCI Express Interface 124 dB SNR /...
post #2 of 316
5/25/09 at 9:22am
I posted the power requirements in the STX main thread awhile back. Acouple other guys were interested in the same thing. I looked over the pics of one design.
The builder stated it improved things noticably.
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post #3 of 316
5/25/09 at 9:32am
Here is the info I received from the STX designers.

I am looking through older emails and all so if I find more specs, I will post it.
I will also look for the contact info for the others who built the PSU.
Unless they chime in first.

Xonar Essence STX
Max power draw is 20 Watts usually less.

Current requirments with or without amp
+5V 620mA
+12V 250mA
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post #4 of 316
5/25/09 at 9:33am
Thread Starter 
Yes. I noticed that. But please post some good ideas here!!! I think the main thread is getting to large!!! All about this card is becoming so big that should be more special threads about it! If you know this guy, please let him share his ideas!!!
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post #5 of 316
5/25/09 at 9:34am
Thread Starter 
ups! you where faster!
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post #6 of 316
5/25/09 at 9:34am
Yes, many people are running opamps tests and filling up that main thread..
I will look through my PM's and email and see if I can find the contact info for you.
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post #7 of 316
5/25/09 at 9:35am
Thread Starter 
Thanks. Really!
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post #8 of 316
5/25/09 at 9:43am
Here is the Contact info for the guy that built the PSU for the STX: Fzman

No problem, glad I could help. Post some pics when you get it done.
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post #9 of 316
5/25/09 at 9:52am
Thread Starter 
What do you think about audio-gd s power supply concepts(kit).
Here a picture of a Modification Parallel Stabilized Voltage Supply Board!
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post #10 of 316
5/25/09 at 9:58am
Thread Starter 
Quote:
Originally Posted by ROBSCIX View Post
Here is the info I received from the STX designers.

I am looking through older emails and all so if I find more specs, I will post it.
I will also look for the contact info for the others who built the PSU.
Unless they chime in first.

Xonar Essence STX
Max power draw is 20 Watts usually less.

Current requirments with or without amp
+5V 620mA
+12V 250mA
Yes. But what would happen whit current requirements if you have three discrete op-amps whit 50 mA current draw???
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post #11 of 316
5/25/09 at 10:24am
well then you would add the difference between the regular DIP8 op-amps and the new ones.. or just add +150ma on the 12V line to be safe (assuming the HDAM's use the 12v)
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post #12 of 316
5/25/09 at 10:28am
Thread Starter 
Ok. thanks!
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post #13 of 316
5/25/09 at 10:42am
Going to use some discrete opamps are you?
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post #14 of 316
5/25/09 at 10:49am
Thread Starter 
Yes! I have three burson opamps installed!
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post #15 of 316
5/25/09 at 11:23am
I know, I was J/K. I looked over your pictures awhile back. The guys I spoke with who built the external PSU said there were noticable improvments in the signature of the STX.

Discrete opamps and now a external PSU...pulling out all the stops huh?
Atleast you have a high quaility platform to work with though great DAC,ADC, filters
and high quality PCB.
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Gear mentioned in this thread:

ASUS Xonar Essence STX Virtual 7.1 Channels PCI Express Interface 124 dB SNR /...
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