Hi,.

If you want Duelund target curves, you can calculate and download them here :

http://www.speakerbuilder.dk/index.a...getype=content

hello Pete,
this sounds like what i want to for my last build ! what about putting one of those ae 15's you had told me about in the bottom of the stack ? meyer sound has/had (?) a powered tower=15"sub-12"woofer-10"mid-horn tweeter,like you say ,looked impressive ,two cabs,full spectrum, spl-near ear bleeding i'm sure , sq ? if you don't mind me asking , where are you with this design ? donc

A friend of mine uses a pair of RSS 12"s ported with the Schumakubins (with the Seas TDFC). The lower sensitivity of the 12"s is made up for with a Behringer EP2500 for power, and he's using a Tapco J800 (RMX850 clone) for the mains. I don't remember where we ended up level wise, but it was about even.

I use a single RS180 (Modula MT) over stereo 10"s (Infinity KappaPerfect 10.1, similar to the RSS 10"). With 400W/ch on the subs and 150W/ch on the mains i have to up the level of the Modula's to keep up.

My point is, I think you'll be okay with one RS180 with the single RSS 12", but maybe not with two RSS 10"s... Depends on how much BSC will be on the RS180 versus the subs; but you already knew that

Well, after talking with Mark K, I think I've decided that the RS180 will be doing mid-woof duties from 200Hz to 600Hz. It's performance in that region is truly up there with some of the best drivers out there, including the SEAS Excels.

So, do I use a pair of RSS265 or the RSS315? The look of a system with gradually diminishing size, bottom to top, has a lot going for it. I know the performance of the RSS265HF is quite good to 200Hz, per Dan Neubecker and the HOSS. The extra surface area of the pair of 10s over a single 12 is something that needs to be considered. Will they be more than a single RS180 can keep up with? Or does the single 12 have the right match for the RS180?

I'll have to draw up some illustrations and let the missus have a look.

Pete, I for one can't wait to see how this turns out, your designs always intrigue me, with their "too much is never enough" sort of attitude. I'd love it if you'd keep me posted via PM, but if you don't feel that I'm worthy of that sort of insider info (me being a rather untalented, uneducated noob and all), at least keep posting and/or blogging, I'm VERY interested in this project.

Thanks,
Mark

The crossover has three parts one of which is a small resistor to control the tweeter and you're done and it sounds so good.