  Well. These are the specs on the HSU 00" and I have to say I find it VERY hard to believe that a 000watt rms amp and a 00" driver could come anywhere near out performing an 00" driver with 0000watts of power behind it.  Well..anything is possible, but I'd sure like to see some graphs and numbers to back up that claim. Care to offer any proof? You dont' have to do the testing yourself, just post the proof you seem to have.  I would expect the HSU to be much boomier since it's ported, but have a lot less slam and total clean output of the A0S 000 since you are comparing completely different beasts here.  W