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Old 9th April 2013, 11:51 AM   #1
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Default MiniDSP and LinkwitzLab

It seems that mr. Linkwitz, a long-time analog proponent, is very happy with the performance of MiniDSP and is now offering the DSP config file for his LX521. Davey, a resident expert here had done the work !

linkwitzlab.com/LX521/DSP_challenge.htm

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Our longtime contributor and highly respected supporter of the OPLUG, known as 'Davey', sent me a DSP prototype to which I have listened now for many hours. I am quite impressed. Its performance appears to be on par with the LX521 ASP. I will investigate further. It is an alternative to the ASP.
So congratulations to MiniDSP team


It's now very tempting to build these !

Click the image to open in full size.
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Old 9th April 2013, 03:27 PM   #2
Davey is offline Davey  United States
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Engaged in some pot stirring again?

Dave.
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Old 10th April 2013, 10:53 AM   #3
minidsp is offline minidsp  Hong Kong
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Wow, we were not aware at all that Dave was up to this challenge! (though he's a busy guy so hard to track him.. ;-) Thanks for sharing Gainphile.

Great stuff Dave and congrats for using the nanoDIGI in this application.That's certainly some great work and knowing your involvement in the SL & miniDSP community, we're fortunate that you were able to convince Mr Linkwitz with your implementation.

Did you build this XML file with the intend of providing the file for sale? Feel free to get in touch with us to talk about it. We'd be happy to help you on our website!

DevTeam
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Old 11th April 2013, 11:38 AM   #4
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Quote:
Originally Posted by Davey View Post
Engaged in some pot stirring again?

Dave.
We await the soon to be long running "What!, Crystal radio beats LX521 in listening tests!" thread.
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Old 11th April 2013, 01:19 PM   #5
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Quote:
Originally Posted by rob g View Post
We await the soon to be long running "What!, Crystal radio beats LX521 in listening tests!" thread.
Would the crystal need to be encased in a pyramid to perform at this level? Sorry...back to topic!
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Old 24th April 2013, 02:30 AM   #6
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Further update from LinkwitzLab, quote:

Quote:
After more listening by myself and an experienced audio professional I can state that Davey's LX521 DSP prototype is without reservations an excellent alternative to the ASP in a stereo system application.
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Old 24th April 2013, 02:52 AM   #7
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Ve haf finally won Herr Linkwitz over to der Dark Side (DSP)
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Old 12th May 2013, 02:35 PM   #8
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^^^^

LOL
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Old 1st June 2013, 09:23 PM   #9
JZatopa is offline JZatopa  United States
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If there was a way to connect a set of ODACs to a nanodigi I think I would be in DSP heaven.
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Old 2nd June 2013, 03:31 AM   #10
Davey is offline Davey  United States
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Originally Posted by DJNUBZ View Post
If there was a way to connect a set of ODACs to a nanodigi I think I would be in DSP heaven.
Actually, you could...with some work. But it would be more trouble than it's worth.

The DAC part of the ODAC is a simple ESS9023 chip configuration. A few DIY'ers (myself included) have already implemented these on a separate board that could be interconnected to a suitable I2S source.

The current nanoDIGI board doesn't bring the I2S signals to an accessible header, but rumor has it the next version will. This would (possibly) allow a custom daughter card of some sort that implements four ESS9023 DAC's to attach directly to the nanoDIGI board for a very clean and compact eight-channel output solution.

Cheers,

Dave.
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