New to diyAudio but not new to DIY or audio

Made my first set of speakers in high school, won't say how long ago, but there may have been a book from RadioShack involved in the theory and calculations. Spent all my time and money on car audio at one point.

These days I fabricate cars, do house DIY projects (just DIY'd a central air full replacement that I'm proud of), tinker with electronics teaching myself PCB level repair, and have a handful of other interests.