dakos

Ok, I'm happy you read what I wrote in the linked thread.

You can run this specific woofer at 500W continuously, no more then 500W !!! that's what the RMS/Continuous rating means, running continuously with no damage to the voice coil, as simple as that.
Us sound-man need to further limit the power fed to the speakers in order to avoid Power Compression so the actual continuous wattage is 125-250W, that's it !!!

I'll be happy to answer further questions

Thank you for your compliments... and no, not earning from this.

The 9000i is a great amp but... the wattage rating you quoted is a 20mS burst, that's less of what a kick drum signal is so it's not that usefull spec, you should consider 2800W for any real world wattage calculation you do.

Second, I support Alain's recommendations for peak power, you should however not exceed the speakers continuous rating for too long so an external limiter is in order, the DR260 has a weird implementation of such a limiter but it can work.

Tha speakers you want to use have 500W continuous/RMS power and 2000W peak rating, RCF are switching the wattage rating names on purpase to confuse users into thinking they have more watts, some companies just do that even if their products are perfectly good.

Make sure you understand the concepts disscussed here and everything I wrote in the link a few posts up of this one before something goes seriously wrong.
Avi

So you need to contact Kevin Gring directly, I think this is his email:
kevin.gring@harman.com

If it's like Tim is saying and it's a custom unit, there might not be a manual for it but Kevin should know.
You can also call them and ask for Kevin, 1-800-342-6939.
Let me know if you succeeded.
Avi

I didn't understand the first question about the headroom... Headroom in a rig is something that we, as sound man, create, I explained it in this link:
http://www.crownaudi...st=0#entry16886
If I didn't understand your question and the link was useless then reask away.

All crown amps being sold nowadays are 2 ohm stable, you will hit the thermal limit of the amp sooner but usually that's not a problem.

About the all itech rig, then yes, the DR260 would be of no use as the DSP is of lower quality then the one on the itechs, HD or not.
Avi

The 260 already has a limiter compressor, EQ and many more features so I suggest not to use all these devices as this will probably reduce sound quality.

If you like to build a cab yourself then that's great, I'm a big fan of DIY projects but I have to caution you that the end result will almost always be inferior to a box purchased for the same money made by a professional company (JBL, EV, Peavey and such).

You could just get a used itech 8000 if those are avilable at your reagion, almost the same power as the 12000i for much less money and far better DSP then the DR260.
Lots of good luck
Avi