IMC AudioSpeaker RCA Line Level Converter Adaptor High Low Hi Lo with Gain Control Add

Do the the ends of the wires have built in crimps?

For home theater use, is there a remote wire that must be connected to a power on? And what have you connected it to? (Not for car audio)

What is the maximum wattage that the unit can handle and does it need power?

Can this be used for av reciever without pre outs? i want to connect a 2ch avr to power amp or xover.