Hello all, first thread here on the forum. Already submitted a support ticket to WiiM, but figured to make this post for everyone to discuss. Forgive my formatting.
I have 2 WiiM Pro's, 2 Fosi ZA3 amplifiers, and 4 different 2.5mm to 3.5mm cables (2 TS cables, and 2 TRS cables^). I have noticed strange behavior when utilizing the 12v trigger feature. The 2.5mm end of the cable is *fully* inserted to the WiiM Pro 12v Trigger Output. The 3.5mm end of the cable is also *fully* inserted to the Fosi ZA3 12v Trigger Input. When in this configuration, the trigger on/off simply does not work.
BUT, what I have discovered is that the intended function works perfectly ONLY when the 3.5mm end is only *PARTIALLY* inserted into the 12v trigger input of the Fosi ZA3 amp^^(picture below). I do not have a device to measure the exact behavior of these devices. But, I tested this with both of my WiiM Pro devices and Fosi ZA3 amps, and the different cables. It SEEMS to me that the WiiM Pro sends the voltage from the TIP of the cable, but the Fosi ZA3 receives the voltage from the SLEEVE. Slightly useless info: The behavior is identical whether using a TRS cable or a TS cable..
What's next? I will try out this polarity reversing cable, seemingly made for photographers to trigger a flash: PocketWizard Polarity Reversing Cable Adapter MMRP ($10 each).
Has anyone else experienced this? I looked through a few forum discussions but did not see any suggestion for a *partially* inserted cable.
(pro tip: the WiiM Voice Remote on/off button will immediately activate the WiiM trigger sequence. I saw a few people complaining about waiting the 2-2.5 minutes for the WiiM to power off their amp connected to the trigger.)
^ Cables used: TS: Ancable 2-Pack 6-Feet Mono Cable 2.5mm Male to 3.5mm Mono Jack Plug - 12V Trigger Cable for Parasound Amp and Logitech Harmony Hub
TRS: 1 Audio Technica HP-LC, 1 Audio Technica HP-SC
^^ (Image attached shows partially inserted 3.5mm end as described when operating properly.)
![IMG_2325.jpg IMG_2325.jpg](https://forum.wiimhome.com/data/attachments/4/4280-9d27427603436dad2c8d8095640815e9.jpg)
I have 2 WiiM Pro's, 2 Fosi ZA3 amplifiers, and 4 different 2.5mm to 3.5mm cables (2 TS cables, and 2 TRS cables^). I have noticed strange behavior when utilizing the 12v trigger feature. The 2.5mm end of the cable is *fully* inserted to the WiiM Pro 12v Trigger Output. The 3.5mm end of the cable is also *fully* inserted to the Fosi ZA3 12v Trigger Input. When in this configuration, the trigger on/off simply does not work.
BUT, what I have discovered is that the intended function works perfectly ONLY when the 3.5mm end is only *PARTIALLY* inserted into the 12v trigger input of the Fosi ZA3 amp^^(picture below). I do not have a device to measure the exact behavior of these devices. But, I tested this with both of my WiiM Pro devices and Fosi ZA3 amps, and the different cables. It SEEMS to me that the WiiM Pro sends the voltage from the TIP of the cable, but the Fosi ZA3 receives the voltage from the SLEEVE. Slightly useless info: The behavior is identical whether using a TRS cable or a TS cable..
What's next? I will try out this polarity reversing cable, seemingly made for photographers to trigger a flash: PocketWizard Polarity Reversing Cable Adapter MMRP ($10 each).
Has anyone else experienced this? I looked through a few forum discussions but did not see any suggestion for a *partially* inserted cable.
(pro tip: the WiiM Voice Remote on/off button will immediately activate the WiiM trigger sequence. I saw a few people complaining about waiting the 2-2.5 minutes for the WiiM to power off their amp connected to the trigger.)
^ Cables used: TS: Ancable 2-Pack 6-Feet Mono Cable 2.5mm Male to 3.5mm Mono Jack Plug - 12V Trigger Cable for Parasound Amp and Logitech Harmony Hub
TRS: 1 Audio Technica HP-LC, 1 Audio Technica HP-SC
^^ (Image attached shows partially inserted 3.5mm end as described when operating properly.)
![IMG_2325.jpg IMG_2325.jpg](https://forum.wiimhome.com/data/attachments/4/4280-9d27427603436dad2c8d8095640815e9.jpg)
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