considering good overall seating location plotting and speaker placement for good coupling with the room for flattest response (use your sound level meter and test discs, at very least, also your ears), you should start by issolating your sub from your listening seat(s). You can easily do this by placing your sub where your ears will be in the seating location, and moving around the room down where you are considering placing the subwoofer. Then, you can play some steady bass music through the sub(set crossover to full open), and listen for a solid sounding bass beat. Then, you will measure to confirm. If you then get a solid bass note from 25hz to whatever frequency your sub will be playing up to (I suggest an 80hz crossover as a foundation), you have found a good potential location for the sub! Then, if your mains are playing solid down to their crossover point (with no sub), now it's just a matter of dealing with blending the volume between the speakers and sub, and tweaking the phase on the sub! You should then have no problem getting a good solid response.
Don't sweat it, you can get if you have patience, and go through ONE VARIABLE at a time.
So again, start with issolating the speakers, then the sub, and then work on the level settings. Good luck
Don't sweat it, you can get if you have patience, and go through ONE VARIABLE at a time.
So again, start with issolating the speakers, then the sub, and then work on the level settings. Good luck