Subwoofers are hard to integrate because of the length of the waves, 25-50ft and that wave is bouncing around the walls making peaks and nulls like water drops in a pool of water in a box (this is why reversing the polarity doesn’t help, it’s the same wave off axis). You may find a great spot for it that works with your room (it won’t be near a corner) but if you still have trouble you should consider a sub array.
Four subs can use each other’s waves as the vehicle to do DSP room correction. If you use an active crossover like a mini DSP with a high quality microphone to measure the room with Room EQ Wizard you can add the data into Multi Sub Optimizer (both programs have suggested donations and I used their tutorial with my own data) which will give you the data to make custom crossovers (each sub needs its own channel/amplification) in your mini DSP. Copy past them in and you’ll have full range music bliss. Just need to adjust the volume of the subs vs the mains till they disappear. No muddy base, fully integrated, no angry wives or neighbors. It’s work but anything worth having is. . .
Four subs can use each other’s waves as the vehicle to do DSP room correction. If you use an active crossover like a mini DSP with a high quality microphone to measure the room with Room EQ Wizard you can add the data into Multi Sub Optimizer (both programs have suggested donations and I used their tutorial with my own data) which will give you the data to make custom crossovers (each sub needs its own channel/amplification) in your mini DSP. Copy past them in and you’ll have full range music bliss. Just need to adjust the volume of the subs vs the mains till they disappear. No muddy base, fully integrated, no angry wives or neighbors. It’s work but anything worth having is. . .