Will a 3rd XS15 help my nulls/peaks?
I got my dual XS15s about 3 weeks ago and I love the sound they create compared to my old Velodyne F1500s (19 yrs old). However, the better/newer subs have revealed some nulls and peaks I didn't notice before. After a couple of days of messing around with REW, I've come to the conclusion that my old Velo just does not play well with the PSAs - no matter what settings or placement I try, the Velo always creates a suck out, usually around 50hz, along with a much more erratic SPL graph. Admittedly, I'm still a REW noob and really don't know what all the graphs mean, but I think I can read the SPL graphs.
After playing around with placement last night, I think
I've determined the best placement for the dual XS15s - one up front between the RF speaker and the TV and one in the back left corner of the room. Since it was late, I didn't really get a chance to test it out at anything close to reference, but at lower levels it really sounded a lot smoother and according to REW, gives me a smoother response at all listening positions. But, I just know I could do better...
Sooooo...do you think a 3rd XS15 will make a significant difference in smoothing response across multiple seating positions? According to Earl Geddes, 3 is the optimum number of subs in a "small" room but my tests using my old Velo as a 3rd weren'r very encouraging.