Sony PHA-1A - Headphone amplifier - 296 mW - Walmart.com
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Sony Premium Home Entertainment - PHA-1A
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Amazon.com: CEXO CL06 Type C to Micro USB OTG Cable for Headphone Amplifier & DAC, Compatible with Fiio Q1 Mark II Q5 M7, Sony PHA-1A/2A/3, Oppo HA-2 SE, Chord mojo etc :
USB DAC Headphone Amplifier | PHA-1A | Sony Morocco
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USB DAC Headphone Amplifier | PHA-1A | Sony Morocco