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Old 18th August 2011, 10:12 AM   #101
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I'll take one (1) PCB here in the EU
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Old 18th August 2011, 01:07 PM   #102
rtambun is offline rtambun  Singapore
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5 PCB to Singapore
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Old 18th August 2011, 01:42 PM   #103
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Superb. Added the latest.
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Old 18th August 2011, 02:34 PM   #104
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I'm changing my order to two boards rather than one, thanks.
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Old 18th August 2011, 02:49 PM   #105
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Quote:
Originally Posted by Soaa View Post
I'm changing my order to two boards rather than one, thanks.
Fantastic idea. Done
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Old 18th August 2011, 04:09 PM   #106
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1x EU
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Old 18th August 2011, 04:44 PM   #107
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Greetings,

Please put me down for 2 boards to the US.

Thanks!
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Old 18th August 2011, 05:26 PM   #108
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Actually, my friend wants in on the deal too, so please put me down for 4 boards total to the US.

Thanks for doing this, btw!!
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Old 18th August 2011, 05:44 PM   #109
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Not a problem!

Your order has been amended.
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Old 18th August 2011, 08:07 PM   #110
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For those who haven't seen it yet, the op amp measurements article has been published. You can see for yourself, but at 2.5X and 3X gain the NJM2068 matches the distortion, and beats or matches the noise performance, of everything else. At 7X gain it has a max of 0.0018% THD+N at 2 volts around 7 Khz which is still really trivial and well below the goal. While the NE5532 does better at 7X gain in terms of distortion, it has 3 dB more noise and requires about 1/3 more current which will slightly degrade battery life.

Those running high gains are probably not going to be using ultra sensitive IEMs where noise can be an issue. So, generally, I doubt the 3 dB extra noise with the NE5532 will be an issue for most users. But I'm equally confident neither will the trivial HF distortion of the NJM2068.

So take your pick when you order parts. Or for an extra $0.65, you can just get both.
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