Ya know, I forgot to mention about having your subs placement with one very close to the LP and 1 right on the front sound stage, the sound of the subs will not be arriving at your ear at the same time - which can and will muddy up the sound of your bass.... were talking terms of miliseconds here but your ears/brain will interpret it as not quite right or muddy.... subs equidistant to the listening position (like you have now) is alot less complicated for setup.
Distance/time delay - needs to be applied to the sub that is closest to the listening position to match the arrival times to be equal.... just a little fyi....
Now on to your eq scenario.... With them setup in the same spot, btw - I would also try to set them up with one front left and one front right and see how that sounds as well... you should daisy chain the subs together (master/slave) and feed one sub signal and send the second sub signal off the back of the first. Then run ARO on the master sub which will handle both subs single band EQ, It will take out the largerst peaks and you can move forward from there.
Next step, Then I would be charting your response (or running sweeps) and setting EQ to the full band with the 1124. It would be nice to have an REW setup for this as there are plugins built right into REW for the 1124, which will give you a calculation based on your final sweeps, and tell you exactly what EQ you need to apply at what hz or center freq, with the proper Q or bandwidth adjustment.... Q (or bandwidth) - It gives you the ability to shape each individual EQ slider adjustment to allow you to control how much cut (or negative gain) as well as the width of bandwidth your are adjusting, basically either making it a sharp pinpoint adjustment at say 40hz, or you can make it a very gentle adjustment at 40hz spreading out the energy to a bit wider scale, say focused at 40hz but overlapping its energy to the freq's surrounding it - applying a more gentle cut say-6db at 40hz but spreading it out over a wider area to 35hz - 45hz depending on how wide you need it to be... much like the picture below. I hope that makes sense.
Here is a pic to understand what that looks like roughly.
The Q is labeled bandwidth - the term is somewhat interchangable.
That is the benefits of an REW setup.
But you can do this roughly close without REW and just taking those sweeps manually with a SPL meter and plotting the FR on paper with test tones in increments of every 3-5hz or something like that.... from 20hz up to 100hz should be more then adequate.
Your chart should look something like this - with your own plotted response not the blue line that is shown...
Remember you want your chart to be flat from 20hz all the way up to 100hz, unlike that ugly blue line in the pic.
You can get test tones here...
http://www.realtraps.com/test-cd.htm
Nice reading there as well....
I would chart these responses at multiple xover settings - 60, 70, 80, 90 and 100hz to see what all the graphs look like in comparison to see which one looks the best and uses the least amount of EQ applied.... that is the true goal in EQing your subs, the least amount of EQ is truly the best scenario. It is a time consuming endeavor, but once you get it right, you'll never need to change it.
Remember that the SPL meter (settings on "C" Weighting) should always be in the same place, as any movement even inches would change the response + or - a few db's, so a Mic Stand should be used for this purpose.... putting the spl meter roughly at ear level and very close to the main listening position....
