Thanks for the words Wayne.The 2241 has a Qts of .4 and the 2242 has a Qts of.28.2242 X-max is 9mm and 2241 X-max is 7.6.Other than the fact that the 2242 will take 800W instead of 600W and is 1db more sensitive.The main difference seems to be the Qts thing.Do you think I should make any modifications to the cabs or just leave them alone?Are there any drawbacks to this switch.And why isn't it a more common practice?Money? Thanks a bunch.....Lightnin