38:17 this is not what you'll see in your car! Can a smart person make a test thats a even playing field that we will see in the car realistically? Maybe even lie and make the 2 ohm test the 1 ohm test 😂. I have a watt meter and im wired to .67 on a salt 3k and usually always rises to 1.6+ and haven't seen over 4.2k full tilt.
I'm not exactly sure what you're asking, but there are way too many variables involved to do an in-car test on a subwoofer. You have different subs, all kinds of different enclosure designs and the vehicle itself plays a role. The results you get from one vehicles setup may not be anywhere near the results you get in a different vehicle.