I'd agree with the advice here to meet the neighbors and assess the specific situation first.
If noise is going to be a problem, switching out your B&Ws for a subwoofer won't save you! Unless the point is that a subwoofer can be turned off.
The issue is that bass travels easily through floors and walls, whereas higher frequency sound is more easily arrested. My downstairs neighbor has an inexpensive subwoofer, and I hear the basslines through my pillow when he puts on his "morning music" at 6 am.
If noise is going to be a problem, switching out your B&Ws for a subwoofer won't save you! Unless the point is that a subwoofer can be turned off.
The issue is that bass travels easily through floors and walls, whereas higher frequency sound is more easily arrested. My downstairs neighbor has an inexpensive subwoofer, and I hear the basslines through my pillow when he puts on his "morning music" at 6 am.