When I use Avia s subwoofer audio tests, why I don t get any output from my subwoofer?
One must realize that LFE and low bass content are NOT one and the same thing. The subwoofer portion of the tests was intentionally placed in the main channels rather than only in the LFE. This allows more complete evaluation of how the sub integrates into overall bass reproduction. In detail: 1. A great deal of low frequency sound is present in the main channels as well as the optional LFE channel. Not all low bass sound in the main channels is duplicated in the LFE. It is even possible to have no LFE and still have low bass in the sound mix. 2. The subwoofer in a system is optimized for low bass output. It should extend deeper than the main speakers, otherwise there is very little reason to have a subwoofer. 3. The main speakers in a system are rarely as capable as the subwoofer in reproducing low bass. Low bass content in the main channels can be routed to either the main speaker or the subwoofer. This is done be selecting “large” or “small” speaker size. Since most main speakers ca
