Hello,
I have Onkyo 646, I'm using the Zone 2 for separate audio and want to add 2 powered subwoofers. Both subs have high/low terminals. I am able to wire one of them using the terminals but cannot figure out how to wire them both.
I tried wiring them separately through the high frequency, and then one to the left front and one to the right front but I lost the low range and had no bass.
Any advice?