Simply curved TMW design concept

[alexcd]

Here's the concept

Hiquphon OW1 (http://www.hiquphon.dk/pdf_files/OWI-prospect.pdf)
Seas W18NX (http://www.madisound.com/catalog/pro...oducts_id=1596)
Dayton RSS315HF (http://www.parts-express.com/pe/psho...number=295-464)

I am very happy with my currently-built 2-way OW1/W18NX design but want to make a statement by building them into a 3-way. The design would include a side-firing sub. For this reason it's duties will only be up to 120-150hz as to avoid being faced the wrong way. I think this will greatly help the existing configuration. My plan is to built the cab with curved sides and recess the woofer into the curve... details of the build will follow.

My question is what woofer to use. I have done a quick search and found the Dayton RSS315HF to offer good performance at a significant value. I want -3dB around 30hz (better to be lower) without a port. My amp is 350Wpc and I plan to run an active XO channel to the woofer. I believe going with a 12" instead of a 10" could get me a significant difference in low end.

(Same question being asked over at HTGuide)

[alexcd]

CORRECTION. I'm using this tweeter.

Northcreek D28 (http://www.northcreekmusic.com/Drivers/NorthD28-06S.PDF)

[gooki]

How do you plan to mount a side firing woofer on a cabinet with curved sides?

[alexcd]

The woofer baffle will be integrated into the skeleton frame, then wood wrapped around the sides, then I plan to cut a driver recess. I should mention the sides will by 1/8" hardboard bent to shape with a 1/2" space for sand in the middle. They will be heavy, sturdy, and very very dead.

Woofer comments?