Played with an omni-directional microphone and an iPad app that allows visual representation of the sound at the driver's head. The amp I installed 2 years ago allows 80 lines of EQ including each speaker individually. The end result is that you can set each one up to reproduce the most accurate sound possible.

Then, as my buddy was tuning the sub, I heard the dreaded gas cap rattle. That doesn't happen anymore.

We're not yet done with another day of tuning ahead, at least. It may surprise the reader to know that I am not an audiophile. I *am* a nerd. So the idea of being able to visualize the audio totally cranks my propeller cap.

Also, not gonna lie- I love a project of extremes. Something so cool as a matched read out of the sound against something so easy as some sound deadener on the gas cap. That just taps all the right buttons.

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