This array can be used either as a hanging sphere(oid), or as two hemispheres. Either way, the radiation pattern can be quite interesting. I like to put the lids in when they're in hemisphere mode.
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.