im just about to start consruction

norty303 wrote: I'm still not shure if the SD18 died because of clipping of the amp or that putting that kind of power into a driver in a bandpass cabinet is asking for problems. Are you saying that you're not sure it was clipping, or whether it was because of the clipping that it died? I'd say something was amiss if it died with that amount of power

I'm shure it was clipping but not constantly.  The clipping leds lit up from time to time.

So what you are saying is that when I power the SD18 with a clean 1000W rms signal there should be no problem?  Even though the driver is rated at 800W rms ...

Kind regards,
Jochen

Dom wrote: Personally I think more important than power is a hefty high pass and  avoiding clipping, compression or hard limiting.  Ever since getting the AVC2 and making sure the subs are adequately high passed I've had no problems using a lot of power...

I high pass the X1's @ 35 Hz with a 24db/oct slope.  No hard limitting or compression.

i drove my old 400w behringer B1800X's with 1200w each for over a year, only blew when the clip lights were on solid for 20second! Hate incompetent DJ's!