I am getting a sundown audio SA-8. The manufacturer's website says the sub will run 34.6 Htz. I'd like to run it at 35 htz, IF that is advisable. Is it usually a good idea to run a sub right where its rated at? Or do most people give it like a 5 htz bump just to be safe? I'd like to run it as low as I can I guess. I don't want to miss out on anything after all.