RM 2000 speaker freq. range

math wizard

What is the frequency response (mainly the low end) of the polk rm 2000 satellite speakers? I'm using my receiver's bass management to set the crossover and I don't want any frequency gaps. Currently, the sub is set at 120 hz. I would like to set it lower (80 hz), but I am concerned that the rm 2000's won't be able to handle the 80 - 120 hz range.

Also, what is the impedance of these speakers (alone). They were purchased as a set with a RM 1000 passive sub that has a combined impedance of 8 ohms.

Thanks in advance for any help or advice.