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Usefullness of a external quality power (linear PSU or Battery) for USB Pci card (SOTM, PPA,...) for use with an Asynchronous, completely 5V decoupled DAC ?


malarz

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PPA USB needs external power to deliver the best quality. I tried to power it from MOBO (even powered by linear supply) but the sound didn't differ much from the ordinary USB port.

 

Cheers

PP AUDIO (PPA USB, LINEAR POWER SUPPLY, DESIGNED FOR AUDIO) + DAPHILE + WIMP HI-FI -> OPPO BD-105D AS DAC -> Musical Fidelity kW500 -> MAGNEPAN MG 1.7 + VELODYNE EQ-MAX10

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