Dual mono amp trigger

[ccs-digital]

Thinking of adding a second Fosi Audio ZA3 amp to run in dual mono mode.

My Ultra currently triggers the single ZA3 I have, but is it possible to use a 'splitter cable' to trigger both amps, ie single 3.5mm from Ultra to 2x 3.5mm, one to each ZA3.

Anyone running such a configuration?

 

[rwilldare]

It might work, it is going to depend on the current draw from the Fosi amps and what the Ultra provides. You can always use something like this from Emotiva: https://emotiva.com/products/et-3

 

[Wosi]

Thinking of adding a second Fosi Audio ZA3 amp to run in dual mono mode.

My Ultra currently triggers the single ZA3 I have, but is it possible to use a 'splitter cable' to trigger both amps, ie single 3.5mm from Ultra to 2x 3.5mm, one to each ZA3.

Anyone running such a configuration?

I've just connected two ZA3 amps to my WiiM Ultra yesterday. On/Off trigger works great through a splliter (designed for connecting two headphones to a single outlet) and two 3.5mm stereo cables.

To my surprise, it also works well with all cables plugged in entirely. I expected I had to plug in the cables only halfway to the ZA3s as mentioned here but that is not necessary (though it also works when only partly plugged in).

 

[ccs-digital]

I've just connected two ZA3 amps to my WiiM Ultra yesterday. On/Off trigger works great through a splliter (designed for connecting two headphones to a single outlet) and two 3.5mm stereo cables.

To my surprise, it also works well with all cables plugged in entirely. I expected I had to plug in the cables only halfway to the ZA3s as mentioned here but that is not necessary (though it also works when only partly plugged in).

Good to hear.

A little research revealed that Fosi Audio actually have an FAQ about triggering two ZA3's from their ZD3 DAC/preamp and show a splitter cable as the solution. On the assumption that the Ultra will work in a similar way I ordered a cable which will be delivered today.

I was aware that stereo cables work as that is what I was using for the single amp trigger.

 

[ccs-digital]

It might work, it is going to depend on the current draw from the Fosi amps and what the Ultra provides. You can always use something like this from Emotiva: https://emotiva.com/products/et-3

The Ultra provides 12v at 200mA but can't find the spec for the Fosi anywhere.