Hi -- I am getting ready to hook up my McIntosh MC-30 and Mono tube preamp to the all original
Altec 800 movie theater speaker (with wings and all original components) that I have.

I need help with the following:

-- should the wires that go to the terminals on the N-800-D crossover be soldered, alligator clipped, taped, or ???
-- any recommendations on a good (maybe vintage?) wire to use for between the horn and woofer and the crossover, and between the amplifier and crossover?
-- which of the two INPUT terminals on the crossover is the 'hot' or 'positive' one? (Mine are unmarked)
-- what OHMS setting on the amplifier do I use for this speaker?

Thanks!