So we just moved into a new home, and I was thrilled to see it had 4 rooms with ceiling speakers...

It wasn't until we moved in that I started seeing how it was unusual.

The 4 zones in question return to the network panel in the basement. Not as speaker wire, but cat5 lines connected to This thing .

I would provide a better link but I can't find much about it online.

I'm having a real hard time understanding how the hell I'm supposed to drive speakers with ~23 gauge wires. Am I missing something? My next step will be to pull out the volume control in one of the rooms, and also pull a speaker to see how it's wired. I just haven't had a chance to do much lately.
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Matt