Saturday, June 20, 2015

Why not have multiple woofers for each channel

Ever wondered why there is a single subwoofer and multiple small speakers for higher frequencies?
Because the human hear can only distinguish the higher frequencies spatially. Why?
Because of the wavelength. The base (subwoofer) is the lower frequency sound which is usually a few HZ which would typically have a wavelength of the order of 10s of feet. Hence in this case, the two human ears which are placed less than a feet apart on our head cant differentiate between base sound  from different channels. Hence we only have one subwoofer for the base sounds and multiple smaller  speakers (5.1 or 2.1 stereo) for the higher frequency sounds.