CHANGSTAR: Audiophile Headphone Reviews and Early 90s Style BBS

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Author Topic: ODAC external supply  (Read 8568 times)

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fishski13

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Re: ODAC external supply
« Reply #30 on: April 12, 2013, 07:25:06 PM »
thanks for sharing Chris.

here's the o11: http://www.amb.org/audio/sigma11/ .  and here are the measurements of the MF V-Link: http://www.stereophile.com/content/musical-fidelity-v-link-usb-spdif-converter-0

i'm tied up with other projects but will try to squeeze this in and report back.
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Chris1967

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Re: ODAC external supply
« Reply #31 on: April 13, 2013, 07:25:09 AM »
Thank you!!  I have an idea of this regulated power supply... i failed to see the o as σ...  :)p13

Ok very nice! i wish you good luck with your project!!

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Chris1967

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Re: ODAC external supply
« Reply #32 on: April 16, 2013, 06:05:11 AM »
Yesterday i got my new aluminium box and fitted everything in it,



Uploaded with ImageShack.us

With a smaller mains filter, removed the ODAC from its (JDSlabs) enclosure, shortened the Salas supply cable (CAT5), secured the canibalized mini usb plug with hot glue, and soldered Sommer shielded cable to RCA out.

Now my rig is aesthetically pleasing too, apart from playing music vey nicely...



Uploaded with ImageShack.us

Now for more listenning and finally ociloscope measurement to see if the Salas is playing optimum.
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Gojakla

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Re: ODAC external supply
« Reply #33 on: April 16, 2013, 08:57:13 AM »
Chris i 'm looking forward to first impressions....

Great looking toys by the way!!!!!  headbang







PS. How do i add karma points to someone?!?!  :)p17
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firev1

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Re: ODAC external supply
« Reply #34 on: April 16, 2013, 12:08:58 PM »
Nice work chris, a 2nd or 3rd project for someone like me, who has little practical work with DACs/amps.(only worked on LTspice and a few school related circuitry projects)

Planning to do a project like this soon, Audio Poutine is selling the CDAC+ which is also co-designed with Yoyodyne Consulting which integrates the ODAC's components with the Adum4160 galvanic isolator in one package if you don't one the isolator to be separate from the DAC.

A board is $99 so I'm thinking of getting myself one and build myself one of the PS stated down here.
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Chris1967

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Re: ODAC external supply
« Reply #35 on: April 16, 2013, 07:15:47 PM »
Thanks, the CDAC looks great and it is much simpler to implement with regulated power supply!

I might try one myself in the future...

Good luck with your build!!
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jilldwr

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Re: ODAC external supply
« Reply #36 on: April 20, 2013, 02:14:00 AM »
Yup, Looks very Tempting!
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mvwvm

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Re: ODAC external supply
« Reply #37 on: January 07, 2014, 12:03:48 PM »
Here is my take on the subject. The PSU is AMB Sigma11 and the little board in the bottom right corner is an USB isolator (ADUM4160 IC).

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munch

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Re: ODAC external supply
« Reply #38 on: January 07, 2014, 02:37:49 PM »
awesome. that's kind of what I wanted to do with mine before I decided to sell it.
it just seemed like a lot of work... but I would love to hear more about the improvements!
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funkmeister

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Re: ODAC external supply
« Reply #39 on: January 07, 2014, 02:59:27 PM »
How brilliant! I didn't think about tackling the problem before the USB input. I kept thinking about hacking traces on the ODAC. Very interested to hear about impressions.
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