Instructables

Step 2: Use Duct Tape to Protect your Soldering

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The Soldering on your speaker, and speaker itself is pretty delicate... so it's a good idea put duct tape over the back of the speaker and wires to protect them from being damaged.
(don't put tape anywhere on the front of the speaker or it will mess up the sound).
CCOTTER2473 years ago
Or you could use heat-shrink to make it look more pro.