I couldn't get my Audio Multimeter to give me a good DC min/max the other day so I took a video of how I was doing the test to see what I was doing wrong and I seemed to answer my own question in the process but also pointed out what I think could be improved on the software side of things.
Here's the video
It seems that the DC min/max function will work for one test and then when you want to reset it to do another test the min will stay at 0.0v and if you want to continue you need to disconnect the probes and shut the unit off then back on. Re-insert the probes and get to the DC min/max.
It's not that terrible of an issue just annoying I guess. If there is a reason for it then I am completely fine with it but I just figured I would bring it to attention for those that have the ability to fix this "bug".
p.s. Please excuse you much crap is in my trunk and how messy the wires are. I just tested the amp in dyno mode the other day and had to get access to the wires and about the voltage drop, I really need to upgrade big 3, I have a d3400 but it is getting bottlenecked at the 6" run on 10awg wire that is the stock battery ground. But hey it has a 2/0 gauge run from alt to battery in the back!