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Old 7th August 2010, 10:29 AM   #1
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Default dedicated power amp for headphones

i'm quite fond of my mingda mc7r preamp and would be feeling wasteful if i wasn't using it to listen to my headphones. the preamp has two sets of outs- perfect for two sets of dedicated amps- one for my speakers, one for my headphones. what do you guys think? do such designs exist? a headphone amp without a volume pot. my inadequate searching tells me no...
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Old 7th August 2010, 03:17 PM   #2
adason is offline adason  United States
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use any headphone amp, just put the volume pot on it to the max and use preamp to control the level
whats a problem?
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Old 8th August 2010, 06:11 AM   #3
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loss of fidelity?
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Old 9th August 2010, 02:20 PM   #4
Jen-B is offline Jen-B  United Kingdom
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99.99% of headphone amps have the volume control directly at the input. Therefore if you set the volume control to maximum it is effectively out of the circuit.
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Old 10th August 2010, 02:05 AM   #5
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^thank you. that explains it.
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Old 10th August 2010, 03:09 AM   #6
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Or,just omit the volume pot altogether. You may need to 'replace' it with some fixed resistors,to provide a ground reference and keep the input from floating.
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