By Wilde Becker. Speaker Stands. At Sunday, July 21st 2019, 18:58:19 PM.
That’s where you need to put the sub. If your sub has a phase adjustment knob, or a polarity–invert switch, adjust this until you hear the loudest result from frequencies around the crossover point, typically 80 to 120 Hz.
should also avoid putting them into enclosed spaces, such as under desks with side panels, as this creates a resonant system that can further mess with bass clarity and evenness. Also be aware that you need to maintain a minimum distance between the cabinet and walls when positioning both rear–ported subwoofers and speakers. Details of how far this needs to be should be included in your speaker or sub’s manual.
If you already have a speaker stand with spikes and your floor is made of wood, then you should consider putting some form of isolation platform between the speaker and the stand, to prevent the cabinet vibrations reaching the stand and, through it, the floor. Avoid flimsy stands that move or rock when you touch them. If the final assembly doesn’t feel completely solid, avoid it.