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Author Topic: audio analyzer beta test  (Read 3158 times)

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Offline echuTopic starter

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  • Country: tw
audio analyzer beta test
« on: September 16, 2012, 09:48:59 am »
Is anyone in Taipei part of this beta test? Please PM me if you are.

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



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Offline echuTopic starter

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  • Country: tw
Re: audio analyzer beta test
« Reply #1 on: January 25, 2013, 02:29:14 pm »
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.

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Offline grenert

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Re: audio analyzer beta test
« Reply #2 on: January 26, 2013, 04:31:11 pm »
Why BNC connectors for something designed to measure audio?
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Offline echuTopic starter

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  • Country: tw
Re: audio analyzer beta test
« Reply #3 on: March 08, 2013, 10:09:52 am »
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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