Im no expert however i would set the sub at 12 on both the power and crossover than tweak the sub with your receiver.also check your setup and use the small or large. the large will send a full response to the front and surrounds.just play with different adjustments and decide what you like. also google a link called subwoofer crawl it is very interesting.i did look @ the polks rm95 and i would set them to small than use the 505 to handle the low end.polks are 95 hrz low end so try you crossover @ 120.
There are no cables or speaker wires included, which is normal for speakers. Everyone has a preference so whatever might be included is likely to be discarded and would only add to the cost of the speaker.
First off, before I responded, I needed to take necessary preparations. Once adequately feeling some brutal dub listening to some Biocide - Cactus, I could answer your question appropriately. This is such an upgrade not only will your ears hear it it, but you'll feel it in your chest and limbs as well. Your going from a 15 watt 9" subwoofer, to a 420 peak watt [300 RMS] 12" sub. That is a huge difference! You'll love it. This is a fantastic deep hitting sub, that I would buy over and over again, if I had to. For the money I think your getting a great device, that works well for most people's uses, and only true audiophiles (maybe) will be able to notice it's imperfections once it's calibrated correctly. I appreciate the auto on/off feature as well, as I don't have to seek out the power button when I want it powered on/off. The only problem I can see having this sub, is that if you live in an apartment, the sound will travel further than a less powerful sub would. I guess why they have a volume button thought, right? Good luck and enjoy!