Cool! Yup you got it. My final setup is 4 sump basins, 1 in each corner of the system. Power comes from a Crown XTi-2002. I run pairs on each channel - parallel for a 2 ohm load. EQ has a slope of 6 db/octave. I have not found a need for a HPF, the sub seems to self-limit.
The other things you'll need - somethig to act as leg - I used long screws with rubber caps on the ends but the ideal is probably sofa legs or door stops. You'll also need 3" PVC couplers to terminate the ports, and finally some sort of sealant for the port's exit - I happened to use 'outdoor double-sided tape' to create the seal. I could just as well have used Silicone, epoxy, plumbers tape... just about anything that makes the joint between the pipe and the basin airtight. If you are lucky, you can probably achieve the seal with a careful cut and a tight fit, but I was not able to achieve that.
You'll also need something to use as legs - the ideal is Sofas legs but I'm just using long screws.
Originally Posted by Rndude
I am going to build a pair of these over the next week or so. What is your final setup? What I need if I am following your build correctly is 4 sump basins, 4 24" x 3" sections of PVC, 2 12" Sony subwoofers from Walmart, a can of great stuff, and some duct putty for all the joints. Of course a few screws and other odd and ends.