How do wireless subwoofers do this?

Ideally, the sub handles the integration seamlessly.


Yes, you can do this without adding a filter on the satellites. I do it this way. I suggest if your main speakers are ported, seal them before calibrating.

Best,

E

The multiple drivers in a 2+ way speaker, or when using a subwoofer plus speakers, always has overlap in the frequencies covered. That's how things are designed, on purpose, in order to get the best sound.

However when using a subwoofer, it depends on whether or not you have bass management or not. If you do, then the preamp or crossover will split the signal at the crossover point (there is still overlap). If you do not, then you'll end up running full-range to both the speakers and the subwoofers, and will need to calibrate based on that fact.

Subwoofer DSP room correction does not implement a crossover. A preamp with bass management will implement a crossover.

Doesn't this mean there is an overlap of what the subwoofers are covering and what your speakers are covering so both your speakers and sub are producing any music below 120 or 100?

Yes. That's the idea. The more overlap the better. The whole point of multiple subs (Swarm, distributed bass array, etc) is the more places the bass comes from the smoother, faster, and deeper the results.

 Doesn't this cause distortion?

Only in the sense that on paper it looks like the timing is all wrong. Which would indeed be a very serious problem, if we were talking about midrange and treble. Precise equidistant symmetry is absolutely critical in order to get good imaging from the stereo speakers.

Bass however is completely different. At 20 Hz for example a human being cannot even hear the sound AT ALL at less than one full wave. That's 1/20th of a second. Cannot hear it at all! We simply cannot localize low bass anywhere near like what we can with higher frequencies. Read up on it. Its two completely different animals.