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    Topping A90 Discrete Review (Headphone Amp & Preamp)

    Update: I just plugged it back in and tried powering it on. It is giving the same "-5" fault code, but won't let me get past it now. Previously for some reason putting batteries in the remote and pressing a button on it made it start working, but now it is stuck on "-5" on the LED display. Seems...
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    Topping A90 Discrete Review (Headphone Amp & Preamp)

    Thanks, I’ll tag him and ask @JohnYang1997 Are you able to provide any insight? Is this a hardware defect or some sort of firmware fluke? Thanks!
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    Topping A90 Discrete Review (Headphone Amp & Preamp)

    Got the A90D on Monday. Yesterday, I was experiencing random LOUD pops from my right powered speaker connected via xlr out. They were intermittent and sporadic (maybe every minute or two). A few of the pops also produced a fault code of “-5” on the LED display. It is connected to RME ADI-2...
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