Ultra 12 volt trigger issue

[TonyE]

I am sure that the fix is as I describe specifically for compatibility between the WiiM and Aiyima/Douk and similar current Chinese mini amps. The mini amps require a stereo plug. Certainly the signal out of the WiiM is not stereo, it probably has to do with the contacts within the socket of the amps.

This is separate from the issue discussed on this thread before post 34.

Aaa, yes, I forgot about "post 34"..

Then you get the Parasound components that used the 2.5mm sockets... and before that two screw terminals.

I bought a bunch of plugs and I got lots of wire, solder and a couple of soldering irons. I use only mono plugs.

No Chinese amps.

Back to post 34.

 

[vinalopo]

Good morning, I have reached out both WiiM and Aiyima support, the latter explained me that "the trigger interface definition for WIIM devices differs from those currently available on the market, including our own. Consequently, the A20 amplifier cannot support WIIM triggering.
However, it is possible to connect only half of the trigger cable." the trick works and looks stable in my case so issue solved, just wanted to share it (I have read about it elsewhere) in case it can be useful for other users

Good evening, I made a custom cable to avoid needing the 'half-inserted' trick. It uses a 3.5mm mono plug (for the WiiM Ultra) connected to the right channel of a 3.5mm stereo jack (for the Aiyima amplifier). It now works flawlessly.

 

[pieterv1]

All a bit weird... I've been using a 3.5mm mono plug on both sides (modular synthesizer patch cable). It works without any weird trickery with a (somewhat vintage) Rotel RB-06 and now with a brand new Topping Mini 300.