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Low-cost Spherical Speaker Array

Step 10Solder the wires to the speakers

Solder the wires to the speakers
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It will be easier to solder the wires to the speakers before they are attached to the bowl.

Cut some short lengths (3/4") of heat shrink tubing and thread them on one end of a speaker wire. Solder the ends to the speaker terminals, slide the tubing over the solder joints, and use a heat gun to shrink the tubing.

RE: Polarity
My speaker cable has a reddish wire and a silver wire. I connect the red wire to the positive (+) terminal and the silver wire to the negative terminal. Some wire has colored insulation, or just a stripe on one wire. Conventionally, one connects a red or striped wire to the positive terminal. If you are inconsistent about this, you might accidentally reverse the phase of some of the speakers. While this will probably have no audible effect in this system, it would be a problem in a more scientifically calibrated setup.

For all the Rules of Hacking, see:
''Handmade Electronic Music: The Art of Hardware Hacking'' by Nicolas Collins, pp. 225-6.
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Author:mzed