UPA-7 Trigger voltage?

[palehorse]

I plan to use a universal adapter and a smart power strip to trigger my new UPA-7. The adapter I'm using has a 3.5mm tip and a switch with multiple voltage settings for 3, 4.5, 6, 7.5, 9, and 12v.

Does the amp's trigger require the the full 12v setting, or is there a better voltage setting somewhere in between 3 and 12?

All the manual says is that it has a 5-12v trigger port... my guess is that I could set it to anything over 5, but I don't want to screw it up!

Thanks ahead of time!

[palehorse]

Nobody?

[RichGuy]

I think anything between 5v and 12v should work fine. I was using a 6v wall wart when I first got my amp and it worked great.

Now I use my PF-60 power conditioner to trigger my amp, I am not sure of its voltage output but both the wall wart and power conditioners triggers have worked perfectly.

[air1max]

I have an XPA-3 and I have tried a few. I had several wall warts lying around. The first I tried was a 7.5V 30ma, that read a little over 11V with no load. These wall warts are not regulated so their output will vary but shouldn't go below its rating with a load. I tried this one first because of its small footprint on a power strip. It turned the amp on, but after a bit it would start to cycle off and on. So I tried a 9V 300ma, which is more common, but it read about 14V without a load. I posted if it was ok, but didn't really get a reply. I tried it anyway and it worked fine. Then I found a 6V 150ma wall wart which read a little over 7V with no load. this one works fine, so just to be safe, I stuck with this one. Plus it's a lot smaller than the 300ma one. I think the issue I found was more the current rating. Too small a transformer doesn't seem to work. The 30ma one doesn't seem to be as common as the 300-600ma ones so maybe it's not a problem. I have no idea if it's ok to put 14V on the trigger since they probably didn't design it to be used with wall warts. But the measurement I got was direct to a multimeter, no load. So I'm sure it would drop a little under load. How much I don't know. So I stuck with a 6V 150ma to be safe. YMMV

[palehorse]

Great! Thanks for the info guys. I think I'll start at 7.5V and work my way up to 12V if necessary.

[roadrunner]

If you look at the back of the Emotiva pre/pros the trigger area always says 5 to 12 volts and shows the various triggers vary from 125 to 500 milliamps. Thus, I would say as long as you are within the ranges printed on the Emotiva gear you will be ok.

[air1max]

thanks roadrunner! exactly the info I was looking for earlier. would've saved me from cutting up some wall warts, although they were all old and just lying around anyway. I did see the 5-12 volts but don't recall seeing anything about current. could be my eyes, not what they used to be. thanks again.