I bought these speakers in April 2009, good value and good impedance acute refunds are also used sampling mix hip hop jazz soul funk bleuf matches me! extensive use in indoor, high output 3 times a Absorbed power they do not follow much .... at the same time they are only 2 X 150 W! but to my great regret, a month ago the 2 tweeters Mount lach!! branch having a mixer with 2 XLR microphone. both at once and I returned to my dealer, there is no guarantee supported on this kind of problem dailleurs on any other forums instead of nimporte what brand, the retailer does not guarantee anything all the speakers without exception in very few cases the filters .... So I'm very disappointed .... alor c good a good product but if you change the tweeters 2 times a year go your way!