Sorry in advance for the thread hijack. My preamp has had the AC message kick in a lot the last two days, indicating low voltage. I'm in DC, and we're in the midst of a heat wave, so perhaps that could be the reason for unstable AC. My AC message is not accompanied by the red light and pressing the right-side button on the faceplate returns the preamp to normal. I haven't added anything to the circuit on which my system uses either. Any insight would be appreciated. Thanks.
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