Amplifier Pdx

I am getting a DC Offset Error with an Alpine Amplifier.?

I am in the process of installing a 4-channel amp (Alpine pdx-4.100) and when I proceeded to test to see if the amp is functional and powering up my receiver displayed this message: "DC Offset Error Protection." I have no clue what this is or means.

The radio is a DNX9960 and I already have a mono amp installed and this error didn't pop up until this recent install. When I unplug the 4-channel amp everything is fine. I don't have speakers hooked up yet. I just wanted to make sure the amp was working. Do I need to hook it up to speakers to solve the problem? I just need some help before I send this amp back to the store and make sure it's not something I am doing as opposed to a faulty unit, which is something out of my control.

I've seen similar problems when solder connections on the output transistors or the emitter resistors have failed. When no signal is present, the output rests at 0vdc (no DC offset). When any signal is applied, it forces the output to move from 0v. If both the positive and negative outputs are not operating properly (possibly due to a bad connection), the output can not be returned to 0v. This causes the amp to have a DC offset which will cause the amp to go into protect. Not sure if this will help you but its all I can think of at this time. What with the amp being new that is kinda weird but hey stranger things have happened.

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