Bill attempts to recreate the low frequency section of a JBL 3110A crossover using trash. Specifically the degaussing wires, large electrolytic capacitors, and ceramic resistors from junked CRT television sets. He manages to finagle and secure a 15” Dayton Audio RSS390HF-4 driver inside of a JBL 4560 cabinet in order to run some frequency response tests. Using free Room EQ Wizard software, a 4-channel Yamaha portable mixer, and a Dayton Audio EMM-6 microphone, he confirms that his proto-trash crossover does indeed start to cut off the frequencies above 800 Hz.

**Remember kids, this is a crummy and cheap prototype that was in use for only a few seconds. Also, yes, the two large polarized capacitors are not wired in such a way as to present as a single non-polarized capacitor. This is not a finished product that could be used for an extended period of time in a loudspeaker. It is an extremely limited use one-off made for demonstration only.**

Inductor Calculator:
http://www.colomar.com/Shavano/induct...

Room EQ Wizard software:
http://www.roomeqwizard.com/

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Bill presents in this video. He can be found at twitter.com/renderanything