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Dual XHD7714 bluetooth microphone gain adjustment

Is there a way to turn up the gain on the microphone on this unit? Just received the deck, install was easy, setup was easy, and it actually sounds and works awesome! So far have only received 2 phone calls and they both said it sounded like I was at the end of a tunnel, hope there is a way to adjust the mic gain so that the unit picks my voice a little better

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I fixed this problem on mine by doing some fairly intrusive 'surgery' - the link above is what I posted on Dual's forum describing what I did.

Posted on Jul 16, 2010

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  • josh810 Jan 11, 2011

    Can you tell me how you fixed the microphone on your Dual XHD7714. I have been watching the forum you said you posted the fix in but it seems to be down indefinitely. Any advice you can give would be greatly appreciated.

  • figgskzoo Jan 11, 2011

    What I did was to open up the face plate case, unsolder the crappy factory mic and in its place, soldered in a 1/16" mono female jack. Then I opened up the mic hole in the faceplate case just enough for the 1/16" jack to protrude. Then I ordered an external, visor-clip, mic with a 6' cord and a 1/16" jack, clipped it to my visor, ran the cord and plugged it in. Presto! I might be able to dig up the part number of the jack, but I got it from digi-key and it was about $2. The mic was $30 and it was a Panasonic brand, iirc. Hope this helps!

  • Al from MA Jul 28, 2013

    figgskzoo, I tried to find a source for 1/16" jack, but that seems smaller than any jack I can find. I found 1/8", 1/4", and 3.5 mm. Any chance you could post the part number of the jack you used?



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