I was driving my daughter to choir practice today, and I saw these out on the curb:

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The former owner agreed that they were free for the taking.

They're covered with grey latex paint, and I discovered (aargh!) that isopropyl removes the paint but also dissolves the decals.

All three drivers have "Altec Lansing" (no Corporation, no Hollywood) in relief on the backs. I'm happy to open up the driver cases if I know what I'm measuring / looking for.

I need to get some big crossover caps to roll off the low end before I can test these, which means I'm doubly in suspense.

Where do I start?

Thanks a lot!

-Fritz