I am using a CPU heatsink as well, takes it down to neutral to touch when running. Uptone Audio mentioned in the user guide that a LPSU was not necessary for the EtherREGEN, but I am suggesting using one. Compared with the supplied switch mode power supply, both the Gieseler Audio Kraftwerk 12V 4A and the new Gold Tune Enhanced 12V 2A version improved the sound quality.  However, the Gold Tune Enhanced version gave more body and warmth to the music compared with the standard version. What
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