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I have Set Top Box (STB) and I'm trying to output voice from STB to Headphones. But it's outputting very very low voice quality. I increased volume of Headphones to its maximum level but still very poor voice quality. I forgot the name of intermediator of STB and Headphones cable but it's a cable from good company.

Do I need to Replace the Headphones or is there something wrong with output from STB. Because my Toshiba 29" LED TV properly outputting Audio from STB.

Any help would be appreciated.

I have below type cable between STB

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Edit

I have plugged in cable in Line-out port and I could not found any Headphones-out port on STB. Now How can I solve the issue as explained above?

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This question appears to be off-topic because it is about home audio/video and it is unclear what you are asking. –  AJ Henderson Aug 12 '13 at 13:50
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1 Answer

up vote 2 down vote accepted

It sounds like the output you are using is not intended as a headphone output. If that is the case, then the impedance mismatch could result in a very quiet audio feed that is not powerful enough to drive the headphones. Are you sure that it is a headphone output and not a line output? Is the quality low or the volume?

Without brands and models involved everything is guess work at best, but being a line output instead of a headphone output is the most common reason for the problem you describe.

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You're right. It's a line output. But I could not found Headphones output !? :( how can I resolve it? Also check that I have edited question about this explanation. –  NullPointer Aug 13 '13 at 4:20
    
If you absolutely need headphones, you will need a pre-amp to bring up the line output to a headphone compatible level. That should provide the necessary power to drive your headphones off the line output. –  AJ Henderson Aug 13 '13 at 14:36
    
Something like amazon.com/Fiio-Headphone-Amplifier-iPhone-Cable/dp/B005OUIIFA should work. –  AJ Henderson Aug 13 '13 at 14:42
    
Ok. I understood it. That means I require one converter which can amplify the signals receiving from STB, right? –  NullPointer Aug 14 '13 at 4:37
    
Yes. That is correct. –  AJ Henderson Aug 14 '13 at 12:54
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