BTW, bass from a subwoofer is no more directional than from full range speakers, i.e., it is not.
Sorry Bob I have to strongly disagree. My sub is approx 1 ft to the left of my left monitor and the deep bass is louder from the left side of the room. To me that is what I am calling directional. I am also sitting in the 'sweet spot' when I hear this. I had the sub on the right of my right speaker and the deep bass was louder from the right. My room dimensions are approx the same but I'm doing a 7ft equilateral triangle. I wish I could center the sub but I cant with my setup
bob is correct, unless you put a sub in an overly resonant spot like in a corner in a small space, the sound is not directional. your directionality sounds like a function of room treatment, placement, standing waves, and yes in that set up the bass would seem 'off center'. what bob pointed out is a proven fact of accoustical science. the long room will be a benefit for the longer deep bass sound waves to develop before reflection interferes. and i also take note of statement that 2 ways are best in nearfield and 3 ways in far field. that is much too broad of a statement imo. i use 2 ways and a sub and have zero issues with directionality, fwiw, i have treated corners and walls. go for a good sub and just take your time tweaking it. good luck :3)
All of your current examples, are not quite accurate. I have been able, to have, a sub, run by a separate amp, that has been tweaked, to emulate a first order crossover, while maintaining, time and phase, coherency, of the complete speaker system!
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