JBL L166 Horizons - How much?

If in very good condition, up to $5-600. Average, $4-500. Poor, $300.
Packing is an art with speakers. There is lots of shipping damage. Sell them locally if you don't feel like you're an expert at it, or have a shipping store do it at buyer's expense.

I have a pair I bought on ebay about 10 yrs ago... for I think $400 or 450 plus shipping... around 550 total.. If they are in good shape (nothing broken, badges on grills, no dents in domes, properly re-foamed woofers) I would say they should fetch $550-650 plus shipping. Have a UPS shipping store profess. box & ship that way damage is out of your hands. That will cost the buyer more in shipping but worth it I think. I re-wired mine with new connectors, I had my woofers re-coned, they ROCK.. I would keep 'em.

Rewiring and changing connectors alters the tonal balance. I got talked into changing connectors on my L-300s and the bass was missing in action. I quickly changed back to the funky original connectors.

Thanks for the responses, everyone. They were much appreciated. I'll see if I can move them locally first and see what happens.

Rrog: I find that.. odd.. changing the connector should NOT affect bass response negatively unless you miswired something... I have never run across that problem.