I'm not Rick but I kinda have an answer.
Power Ratings for transducers are an area of much confusion. It isn't meaningful to talk about the power that the transducer can handle unless you qualify the signal used and the enclosure/application it is used within.
From a practical standpoint, with music/movies as your source material, you won't toast the coils unless you are doing something evil. I've seen one thermal failure with approx 1500 units sold and that was a car audio guy. The most likely failure mode is mechanical due to low-frequency use where you slam the driver repeatably against the suspension limits. Eventually it will start to scrape and make scratching noises. Of course the loudspeaker will be complaining when you reach those levels. The high SPL capability of the loudspeaker is mainly due to the high xmech capability of the driver.
As a point of reference.... I power my listening set of loudspeakers (using the Anarchy) with a 1200W @ 8-ohm pro amplifier or with a 200W @ 8-ohm Class D amplifier. I don't notice any difference in performance between the two. I've also designed an active loudspeaker using approx 100W @ 8-Ohms on the midwoofer and it works fantastic. I'm sure you could clip it earlier but it is at SPL levels I'd never use.