![]() ![]() The simplest is a flat baffle, an approach dating back to the early 1900s. There are several ways to keep cancellations from happening. ![]() If the front and rear radiated energies are not separated from each other, each will cancel the other’s output because they are 180 degrees out of phase. It does this a lot – like 1,000 times per second for a 1 kHz wavelength. When it moves rearward it provides negative pressure, or recursion. Why separate front cone radiation from rear radiation? When a cone driver moves forward it provides positive pressure to the atmosphere, exhibiting excursion. It may also limit the rear radiation of horns and compression drivers to avoid acoustical energy returning back towards the stage. In virtually all modern loudspeaker systems, the enclosure contains some or all of the driver elements that comprise the system, and it separates the rear radiation of one or more cone-type drivers from their front radiation. ![]()
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