"4. How 'conservative' are your RMS power specs?
If you want to run your woofer with no worry of frying your voicecoil or causing physical harm to your driver, the listed RMS specifications are a safe bet. If you are looking for maximum performance from each of our drivers, we would confidently advocate using ~500 and ~750 watts respectively, for our RL-i and RL-p Series drivers. When increasing the power input to your drivers, you will want to tailor down your enclosure volume slightly. It is also strongly urged that you contact us prior to using large amounts of power such that we may assist you in confirming that your enclosure is appropriate for the given power. "
That help?