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Tube+OP My headphono & preamp
Tube+OP My headphono & preamp
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Old 17th July 2010, 09:57 AM   #1
soro is offline soro  Taiwan
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Join Date: Jul 2010
Location: Taipei
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Default Tube+OP My headphono & preamp

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single 12V power supply.

It can be a preamps.
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