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Topping DX3Pro+ Noise issue

Omnicide

Member
Joined
Oct 17, 2019
Messages
5
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3
Hello!

I have some issues with my DX3Pro+ unit, there is an audible buzz/noise in both channels with evry other step on the rotary encoder.
Turning the rotary controller(ie volume up) when there is noise will significantly reduce it, another step and it's back againm, using the remote will not affect the noise at all.
Issue is present irregardless of source(BT/USB/Optical), though when BT is searching for a device the noise is intermittent with the flashing light.

I purchased the P50 regulated power supply thinking this could be power related but unfortunately it has not solved the issue, nor has firmware update(running v1.25 now).

Power amplifier is a Audiophonics LPA-S400ET, a purifi 1ET400A based class D build. It's dead silent without input so I'm thinking the issue is related to the DX3Pro+ unit.
 
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