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Gustard DAC-R26 Discrete R2R DAC & MQA DAC, R2R+1Bit DSD512 PCM768kHz XMOS XU216 USB DAC, Balanced DAC, K2 Clock Digital-Analog Converter with Remote Control (Silver) : Amazon.co.uk: Electronics & Photo
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RU6 Portable USB DAC Headphone Amplifier USB Dongle R2R DAC with 3.5mm and 4.4mm Headphone Output - AliExpress
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