Step 15: Enjoy the sweet, sweet music
You're going to need a few things to use your speakers, now that you've got them.
-- Eight channels of amplification. With the money you saved on speakers, you could by a Stewart DA-70-4 for each hemisphere. Or, to keep the whole thing on the cheap, get four t-amps . Currently, I'm running some class D amplifiers I found on ebay.
-- A source of interesting sound. I am a MaxMSP user, so I've used that software with the nbody~ from the PeRColate collection to create simulated body resonances of string instruments. You can also do this all for free with Pd .
-- I use it to make electronic instruments, or electronically processed acoustic instruments, sound more "real" and blend with other instruments.