Hello curious as to peoples experiences with speakers for rehearsal scenarios. I run 4 rooms that for the past 4 years have survived well with the EV Sx100 speakers (http://www.electrovoice.com/family.php?id=22). They have lasted quite well, had to replace 3 voice coils (within warranty period, but of course, not covered by warranty) in total now and im thinking, over such heavy use, thats not to bad. BUT what do you think? Should speakers last longer then 4 years with heavy use? We were told that what blows the voice coils is clashing frequencies between low octave keyboards and vocal. We dont get mayn keyboards through the studios, but it is still a factor. I would like to go one size larger and get the 15inch model. We currently use Yamaha EMX312 Mixer. What speakers do you recommend?