The two DIY folded horn subs below it use a 8" Dayton DVC driver, and are powered by a Dayton APA-150. The synergy horn is powered by a Yamaha HTR-5450. It was crossed over at 90hz to the DIY horn subs, I did not have the crossover on the subs set up right so there was a large dip between 70-100hz.
The DIY synergy horn uses four 5.25" sony neodymium buyout woofers, and a 1" dome buyout tweeter, crossed over at 1100hz. Cost: Drivers: $6.76 Crossover parts $18.54 MDF and other materials ~$15-20 Total: $45
Camera is Cannon HF10 with built in mic, wind was about 10 mph, there was also some noise from a jet flying overhead in the background. Overall the camera's built in mic did not do it justice, I"ll have to try again with some other mics.