With LP source, deep bass is monophonic. Records are made this way because strong vertiucal groove modulation tends to make the stylus hop out of the groove. Also rumble filters often reject the differential signal (vertical) because that is what turntable rumble mostly is.
So, if you play LPs, a mono subwoofer is just fine.
Digital sources do not have any reason to blend the LF to mono, and in many cases the LF (for example: a bass drum) is plainly in one channel. A mono subwoofer looses this spatial effect.
So, if you play LPs, a mono subwoofer is just fine.
Digital sources do not have any reason to blend the LF to mono, and in many cases the LF (for example: a bass drum) is plainly in one channel. A mono subwoofer looses this spatial effect.