There are a lot of knowledgeable, experienced folks on this thread, so here's a scenario/question - your advice is appreciated!
I'm seriously considering the purchase of dual Chane subs (10" ported, probably the 550 W version). Having read a lot of threads on AVS, it seems like the easiest way to integrate dual subs in a room is through careful REW/UMIK-1 measurements and the use of a miniDSP-2x4HD. These tools allow maximum return on investment by allowing for optimization of ULF at the main listening position(s), regardless of the number of subs. These tools are also necessary for conquering room nulls.
I am preparing a purchase of the UMIK-1 (Cross Spectrum Labs sells them individually
calibrated vs. batch calibrated, so I'll likely go there for an extra $25 unless advised otherwise), a boom-mic stand ($20 at Amazon), and the miniDSP-2x4HD ($205, up to 10 filters, much longer delays available than the non-HD version). I won't have a dedicated computer in the room, so a temporary
laptop setup to take measurements and tailor the response with the DSP will be used. I also don't want to spend the extra $75 on a WiDG for the DSP - I'll just use a USB cable to connect to the DSP at the same time, according to the video at the bottom.
Question about the process/setup: I'll have an HDMI cable running from the laptop to the AVR, a USB from the laptop to the DSP, and a USB from the laptop to the UMIK-1. All cable lengths will be < 15 feet, with the laptop temporarily situation on a chair/small table in the middle of the room. Does this make sense? I'll be able to move the UMIK-1 across all seating positions in the room with this setup, so I think it will be fine (I've been cautioned about longer cable lengths giving inadequate readings).
If all goes well, I should be able to post comparisons between my current situation and a dual Chane sub setup here...at some point. It looks like using REW requires a great deal of time and patience...