I’ve been having the hardest time integrating my sub into a 2.1 system. Moved the SINGLE sub around multiple times and turned every setting down continually and nothing helped. (Running the sub off of room two outputs.) finally set phase 180° out and I’ve been turning gain and crossover back up waiting for the inevitable boom. I thought phase was just for multiple subs, am I wrong? I’ve heard the saying trust your ears, well my ears say the phase adjustment solved many of my problems but I didn’t think that’s how it works, please educate me.