Whom are you representing? Most cable manufacturers have no idea what they are doing. They spread the message of unproved crap: Directionality, copper purity, cryo treatment, or burn in. Some even add some box with passive components on the cable.
I had this Sun. a job interview at RAFAEL. They asked for a phenomena of a system they showed me the schematics, that got a problem of oscillating and under voltage. I asked for the distance from the power supply and how thick were the wires? I nailed it. It was way less than 160 ft. Your 160 ft cable shows that you have no idea what a speaker's cable roll in a sound system. However, you do sound as the average ignorant Joe that sales them.