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Old 3rd August 2006, 10:54 AM   #1
Rtop84 is offline Rtop84  Poland
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Join Date: Apr 2006
Location: Poland
Default Military opamps in audio

Hi!Some hi-end phono preamps like AHT Non-signature and Walker Audio use military opams. Perhaps, they use military grade version of standart opamps.Have you got any information about it?
Best regards,
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Old 3rd August 2006, 05:43 PM   #2
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Join Date: Apr 2005
Location: In the Wild, Wild West
Military grade has to do with temperature range, reliability and tracking. Military grade has to operate at a wider temperature range and be more reliable. These parts cost more because they are tested more and more data kept on the parts. The higher cost doesn't mean better sound or anything like that. The part also has to be fully trackable in every step from wafer start to end in case of a failure the data can all be analyzed.

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