WiiM Amp Pro - line in not working properly

gintonic

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Joined
May 13, 2025
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New WiiM Pro Amp just arrived here (already got a WiiM amp in another room)

Optical, HDMI, and network streaming all work fine on the new Amp Pro. Multi room is great.

Plugged in a CD player to line-in, and the sound output is very distorted and mainly out of the left. Tried optical out on the CD into Amp Pro and all sounds great. Tried a tuner into the line-in and same massive distortion.

Both the CD player and Tuner work fine on line-in on the WiiM Amp in the other room.

Tried factory reset and different cables - no change.

I raised a ticket and am waiting for a further reply - they suggested 24 bit resolution and factory reset, neither made a difference.

I am thinking some hardware fault on the line-in?

Anyone experienced similar?

TIA
 
Last edited:
New WiiM Pro Amp just arrived here (already got a WiiM amp in another room)

Optical, HDMI, and network streaming all work fine on the new Amp Pro. Multi room is great.

Plugged in a CD player to line-in, and the sound output is very distorted and mainly out of the left. Tried optical out on the CD into Amp Pro and all sounds great. Tried a tuner into the line-in and same massive distortion.

Both the CD player and Tuner work fine on line-in on the WiiM Amp in the other room.

Tried factory reset and different cables - no change.

I raised a ticket and am waiting for a reply.

I am thinking some hardware fault on the line-in?

Anyone experienced similar?

TIA
What is the line in sampling rate configured to?

The optimal is 24/96.
 
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