The lowest daily rating I have heard of for the APX (not XX) is 3k, the highest is 6k, and the most common answer is 5k. I wish I had the experience to support either claims, but I don't //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif But I do know that I was told by an Atomic representative that it can handle 5k (the APX). If they underrate the potential for the sub on burps, than I see no reason why they would lie about the daily rms rating. They are annoying as all fuck to deal with and hard as hell to get ahold of in the first place, but they quoted me a good honest price for a recone, and told me what size box to use for it (which matched what others have said as well). They may have poor customer service, but I do believe they are honest...