How can anyone say a particular driver will be louder than another? I know you can do tests and prove other drivers loder than other in identical scenarios, but it's not guaranteed that driver X will be louder then driver Y. Also, What is the basis for the result? Time and time again, I see people asking which is louder and you see people spouting off mic readings. This is all good and well, but it's pretty much pointless comparison to a daily driver application just looking for some ear-splitting bass. Even in the competition realm, the results won't be the same everytime. Each application is different, not all alignments are alike, not every driver is exactly the same even if they are the same model. There's just too many variables IMO to say "yes, driver X is louder than driver Y."