I keep posting about this but finally had a few minutes to snap a couple pics on it when swapping out epq1200s for epx4000s.
The 12v trigger out of the receiver doesn't have enough to get past a single 75ohm relay. Using the 12v trigger to turn on a standard atx pc power supply though and it has enough on a single 12v rail to turn on multiples in daisy chain. The receiver 12v trigger is wired to a standard automotive 12v relay which grounds the green wire in the atx power supply to turn it on.
All Behringer amps I've done this with so far have plenty of room inside to mount the omron relay. Just watch out for the black reset button on the side of the relay. It can't be mounted pushed in(against something) or the relay will never close.
Relay being used is available at mouser.
mouser.com omron relay link
Clean and simple.
And a short vid of it in action. 3 epx4000s and 2 ep4000s via wifi. Enjoy!

The 12v trigger out of the receiver doesn't have enough to get past a single 75ohm relay. Using the 12v trigger to turn on a standard atx pc power supply though and it has enough on a single 12v rail to turn on multiples in daisy chain. The receiver 12v trigger is wired to a standard automotive 12v relay which grounds the green wire in the atx power supply to turn it on.
All Behringer amps I've done this with so far have plenty of room inside to mount the omron relay. Just watch out for the black reset button on the side of the relay. It can't be mounted pushed in(against something) or the relay will never close.
Relay being used is available at mouser.
mouser.com omron relay link
Clean and simple.
And a short vid of it in action. 3 epx4000s and 2 ep4000s via wifi. Enjoy!
