I have been a succesful SMS-1 user for some time, and posted earlier in this great thread. I am thinking of going to stereo/dual subs, and want to use a pair of SMS-1's (daisy chained, I guess) to EQ both for great 2 channel use. Currently my l/r mains are running full-range and I take a second pre output and run l/r to a single SMS-1. It EQ's a corner located Paradigm Servo 15, and does a good job. I'm eval'ing several different sets of main l/r's and the EQ process for each of them goes pretty smoothly (pun not intended).
Now I think I want true stereo subs, and another SMS-1, and have looked at Velodyne's daisy-chain ideas in the SMS-1 manual (page 11). It's weird, however, in that it really treats the slave as a self-EQ'd "secondary citizen" and primarily tells the user to concern him/herself with the master sub. It says to set polarity, phase and xover for the master, copy it to the slave, then run a simple self-EQ on the slave. After that all the slave really sees via rs232 is volume and preset commands.? What if the sub is not symmetrically located, what if phase and polarity are different (or more to the point, need to be different due to different distances from the sweetspot, etc.). Seems to be a very best-case scenario it sets up.
Net/net, since I don't need a primer on the SMS-1 what I really need is a primer on EQ'ing two subs in one room. As a start, don't they need to be half the volume, or some percentage once both are running together, or does the fact that one main speaker is only running during EQ make up for that? ? How about phase/polarity? Is there a possibility they cancel or wreck havoc on each other's separate EQ settings? To me this is like setting brightness and contrast on a good display, both are synergistic and tied, but not sure where to start. Any help or link or thread reference would be helpful. Thx