Need help with basic electrical stuff

Hi all,

My amplifier has an error and I've talked to the designer. I'm told to "Check the DC voltage at the speaker output related to GND (e.g. XLR Pin1)

I'm unsure of what to do.

1)Where do I put the black and red cable from the volt meter onto the amplifier,

2) and should the amp be on.

3) What do I do regarding the XLR Pin1

Appreciate any help I can get, thanks all.

samureyex02-19-2025 2:19am

samureyex OP Details Discussions Posts This discussion Message User 259 posts 02-20-2025 at 02:16am Copy Comment URL Report Comment Edit Delete @imhififan For the black speaker terminal I got -0.05 volt. For the red speaker terminal I couldn't get a reading, it was 0 most of the time. Is this normal?
samureyex OP Details Discussions Posts This discussion Message User 259 posts 02-19-2025 at 05:30pm Copy Comment URL Report Comment Edit Delete Ty guys. Much appreciated!
samureyex OP Details Discussions Posts This discussion Message User 259 posts 02-20-2025 at 03:11am Copy Comment URL Report Comment Edit Delete @imhififan Good idea. Unfortunately the designer seems like he's in a very busy phase. it can take many days for him to respond. Regarding if the value is normal. I'm also unsure. The designer has said his amp is neither class A nor AB nor D nor H. He said it's a kind of its own so who knows what's normal or not. What I can say is when the amp turns on, it counts from 10 to 0 until it full engage in. I just thought a 0 on the + terminal would mean something.