Ha. I had that book back in the late 80s in high school. I couldn't live with the idea of randomly throwing a woofer in a box for car stereo and hoping for the best. From it learned things like thiel-small parameters, QTC of enclosures, isobaric enclosures, compound isobarics, 4th order bandpass, and 6th order bandpass enclosures and would build them for friends so they could have things like small enclosures that left the car usable, but still sounded good (keep in mind this was right as long travel, small enclosure woofers were finally coming out).