Second—and you really can’t tell this from the photographs, the bass driver is a full 300mm in diameter, which is ‘way bigger than the drivers fitted to most subwoofers. Moreover, although you can only see one bass driver in most of the photographs, the B&W DB1D has TWO bass ...
Sonos refers to the Arc's arrangement as 5.0.2, which clearly doesn't add up to 11 but makes more sense if you think of it as using its 11 drivers to attempt to replicate the soundfield of a five-channelsurround soundsystem with no subwoofer and two height speakers. That '0' can be...
Every spring/mass system has such a resonance frequency where movement finds the least resistence. And every such system will move at this resonance frequency when you push the mass (squeez or stretch the spring) and leave it alone. The spring will try to move back to its original position ...