Wow, those were some really great insights and I very much appreciate everyone who contributed.
Being that my Denon avr890 is nowhere near capable of fully powering the towers, I plan on setting the crossover to 80 hz.
I am doing so to keep my Denon from having to work too hard trying to send subwoofer like frequencies to already powerhungry speakers. AND, 80hz seems to keep the neighbors away. I may only be able to use the psw111 for now while I am still in this apt.
Anyhow, for now, I am going to try bi-amping the towers, in a 5.1 format, gonna run audessy multi eq, then I will report back and let you know how everything sounds.
I will also upload a you tube video. My you tube channel is @ MrRugDoctor78