Critical subwoofer tip


I assume that everyone already knows the importance of phase matching a sub to the main speakers but it’s a little more complicated than simple 90 degrees or 180. The B&W sub that I have has four choices. In every case there has been a definite correct position that can be non standard. My current setup shined at 270 degrees vs the std positions. It’s completely obvious and the other choices would not have been satisfying. 
From my lengthy experience I would want a subwoofer with several phase choices. I personally don’t see how one could seamlessly integrate the mains and the sub without this flexibility. No one asked but i thought this info might be useful to anyone purchasing a subwoofer. YMMV
4425

Showing 2 responses by russ69

Just to be clear, you adjust the sub phase for your seating position, not the same phase as your loudspeaker but I'm guessing it's near the same thing. Unless you are sitting at a null point. Then the sub phase will be different than your loudspeaker. Agree?  
Good points MC. I have always asked how you phase match a 64 foot wavelength with a one inch wavelength. Can't be done, except at one point at one frequency but you may not necessarily be matched on the leading wave if I'm visualizing this right.. Most will say it's ideal to be in phase at the crossover point but many speakers are not and it wasn't by mistake.