optical switch

  1. J

    Ground loop via USB broken but high pitch noise remains. *Please advise*

    Audio: PC - USB - E30 - L30 Power: Dedicated 20A to office closet - cyber power Sinewave 1500 UPS - PC/Accessories + separate Isobar strip for stack/monitors/sub *No noise present via Headphones or IEMS Purchased Adam T5V powered monitors and their sub. Hiss is minimal even with the gain all...
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