Quote:
Originally Posted by
Phil Tomaskovic 
I sent Bob Moran at NAD an email on this and will report back. His out of office reply said he was at CES and will be back Monday.
From Bob:
Yes the new HD models use a different Audyssey HD Mic, denoted by a Silver connector, versus the Gold connector of the Non- HD Models.
The new Mic is available at NAD Parts; 1-800-263-4641 ext. 4383.
I have not been advised what the difference are between the 2 mics.
If Audyssey Calibration runs correctly on your unit with the 'Gold" MIC, then I would not be concerned about updating it.
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Hi Phil,
I further researched your question on the Audyssey HD Microphone.
The supplied microphone comes directly from Audyssey and has a minor difference in response levels. The microphone supplied with our T 785HD has a 2kHz difference from the earlier microphone made available with our T 785 (non-HD). The T 785HD's firmware is also different as it includes the new microphone correction curve."
I hope this inforamtion is helpful.
Best regards,