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

wturkey Details Discussions Posts This discussion Message User 850 posts 02-20-2025 at 02:36am Copy Comment URL Report Comment Edit Delete Not sure if this helps but when checking the Hafler amps, one of the checks is DC offset at the speaker outputs. Put the positive meter lead on positive, negative on the negative meter on millivolt or volt settings. Usually the desired number is less than 100mv +\- . Maybe that’s the information they are seeking? Refer to the Hafler amplifier DH-200 or DH-220 manual which is available online for free.