So I was playing on my Home rig (College student, keep my nice rig at home) which I don't play often with my new bass, and I noticed a peculiar sound when I played the low E. I think it's just most prevalent there, but it's a VERY subtle sort of Phasing sound, like a Breeeeaaaaaooooooowwww, not intrusive, but noticeable. I was wondering if this could be due to the fact that one of the speakers in my 4x10 failed (No Idea how) and I had it replaced with a shiny new Eminence speaker. Could some sort of mismatch be causing the sound from that speaker to be out of Phase somehow with the other three? It just struck me today that that might be it. Is that a thing that occurs? Not NECESSARILY much of a problem, It actually sounds kinda neat. Like I mentioned, it's VERY subtle, which is why I don't mind it much.