Greetings from Kansas, I will be taking delivery of some Polk RTi-A9s this Tuesday. I will be powering them with a couple Luxman M-120A amps in BTL for 300 watts. Am curious about Bi-Amping them. I may be in possession of a Luxman M-02 soon and was wondering if I could use the M-120A amps for the woofers and the M-02 in stereo mode @ 150 watts for the tweeter/mid array. This is a new thing for me (bi-amping) and don't want to ruin the sound, or worse, ruin the speakers. With the wealth of knowledge on this site I figure somebody can give me some much needed guidance.