I've decided a high pass filter is good insurance, and I'll be able to run REW with a dsp so it's now on the list.
Sonotube ordered. It will be shipped to menards by the end of March. And yes, I measured my doorways at 32". That will give me the ability to have 1" of overhang for the end caps.
Ordered the following items (qty not included)
Dayton Audio DSS2-G Gold Speaker Spike Set 4 Pcs.
Part # 240-666
Neutrik NL2MP Speakon Connector 2 Pole Panel Mount
Part # 092-059
Wired Home SKRL-12-50 12 AWG OFC Speaker Wire 50 ft.
Part # 100-024
Neutrik NL2FX Speakon Connector 2 Pole Cable Mount
Part # 092-198
RCA Patch Cable 3 ft. Gold Plated
Part # 240-025
XLR Male to RCA Female Adapter
Part # 240-438
Tripp Lite TLP1008TELTV 10 Outlet Surge Suppressor
Part # 125-052
Parts Express Cast Frame #10-32
Speaker Mounting Kit
Part # 260-776
Parts Express #8
x 1/2" Self-Tapping Truss Head Screws 100 Pcs.
Part # 081-460
Dayton Audio iMM-6 Calibrated Measurement Microphone for iPhone, iPad Tablet and Android
I will need to pick up mdf, dowels, and cloth to cover the sonotube. I have r-13 to damp the resonant frequencies.