I have issues with our new live sound setup. Our stage is 48' wide, and we have a JBL sub (2x18 Marquis series, I believe) on the floor at each end. While sound checking this weekend, I found that while standing at the board (at the back center of the room) or on either side, the sound was a good mix of lows, mids, and highs. However, in the center, from front row to about 10-12 rows back, all I was hearing was mids and highs, which sounded sort of like an AM radio station. The subs pointed straight out and didn't seem to be covering the front sections of seats in the middle. I asked the soundman if we should turn the subs in more, and he said it wouldn't matter, since bass is "non-directional". I'm not a sound engineer, but it sounded pretty "directional" to me! I would also think that you would want the best possible sound in the center at the front as well as the back. Anyone else experience this?