Author Topic: audio analyzer beta test  (Read 2406 times)

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Offline echu

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audio analyzer beta test
« on: September 16, 2012, 07:48:59 pm »
Is anyone in Taipei part of this beta test? Please PM me if you are.

http://www.screencast.com/t/pQPY7oDNLpT



 

Offline echu

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Re: audio analyzer beta test
« Reply #1 on: January 26, 2013, 01:29:14 am »
I didn't get in the beta because I was outside of US. But I have ordered and received it.

http://www.quantasylum.com/content/Products/QA400.aspx

My first measurement was to compare noise of TL072 and NE5532 using fixed gain of 7. The brief summary is that I can indeed distinguish the noise between these two opamps using this instrument. Distortion measurements seem reasonable too so far.

 

Offline grenert

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Re: audio analyzer beta test
« Reply #2 on: January 27, 2013, 03:31:11 am »
Why BNC connectors for something designed to measure audio?
 

Offline echu

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Re: audio analyzer beta test
« Reply #3 on: March 08, 2013, 09:09:52 pm »
It depends mostly on wheter you measure single ended or differential audio. Consumer things is all single end. The guys on diyaudio are making differential amp for QA400.

http://www.diyaudio.com/forums/equipment-tools/231401-quantasylum-qa400.html

If their results are good, then I will try it too.

 


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