Thanks for the advice. I just thought there might be users here who own an inventory of EAW KF's and IT's or MA's. You are right about the temperature in Oman, 49C is pretty regular and it shoots up even higher. We currently use MA3600vlz to power up our subs and a combination of different XS amplifiers to power the tops. We have had some problems with the latter. We have noticed that a number of our amps just switch off with only the ac power led lighting up. The only way to get them up and running again is to reset them(using the reset switch at the back). This happens without the amp peaking. It could not be the heat because we have never used these in the extreme temperatures(outdoor in summer). I would appreciate your insight into this. I understand these amps are not designed for touring, which is why we want to shift to IT's or MZ's. MA's rock! Needed to clarify that the IT's offer the same degree of reliability(being SMPS and Digital).