Active And Passive Subwoofers – Type A (Active) Personalities
Home theater (HT) owners are in a constant search for the perfect sounding system. Part of that perfectly tweaked home theater sound is derived from subwoofers. There are three basic types of subwoofers with which HT owners should be familiar: active, passive, and ported. Each type has its own characteristics and benefits for the HT owner. Therefore, it is important for the HT owner to understand how each type can affect the overall sound in his or her system.
An active subwoofer is a subwoofer that has its own amplifier. There is no need to use existing receivers or amplifiers. The subwoofer is able to produce its results with its own power. Many home theater owners prefer active subs for a variety of reasons. One reason for choosing an active subwoofer is that bass needs a lot of power to sound as loud and as clean as higher frequencies. Generally, from 100 hertz on down, there needs to be about 10 times the power to move that air at those low frequencies of big wavelength sounds. More power is required of the subwoofer to reproduce a loud and clean sound.
Subwoofers are used in any number of situations and locations, from home theaters and commercial movie theaters to concert halls and large stadiums. The vast majority of the power being used for those applications is produced by the subwoofers because moving that much air for lower frequencies takes a great deal of power. Implementing active subwoofers into the sound system eliminates the unnecessary taxing of the receiver by putting a large power demand on it. The power built into the receiver can take care of the high frequencies, and the low frequencies have their own amplifier.
The second reason many HT owners prefer an active subwoofer is the design itself. There is a phenomenon between the speaker and the amplifier that dramatically reduces distortion. Because the subwoofer does not need to work with a wide variety of amplifiers, they can tweak the circuit amplifier to work well with any particular speaker. There is a way to feedback part of what the speaker is producing into the amplifier so it can adequately compensate, resulting in a dramatic reduction in distortion. The technique is only possible with active subwoofers because the amplifier circuit and the speaker have to be known quantities and specifically be working together in that way, which is not possible with passive systems. Therefore, for the above-mentioned reasons, most HT owners prefer an active subwoofer over a passive subwoofer.
The decision to implement an active or passive subwoofer rests solely with the home theater owner. There are specific characteristics and benefits for any type of subwoofer chosen, depending upon the needs and limitations of the system itself and the available space. Therefore, only after careful testing and planning should the home theater owner make the decision of which subwoofer would best meet the demands of his or her respective system
Signature***********************
If you don't qualify for a mortgage Refinance
Mortgage and Foreclosure Scams
juegos gratis agregados a diario para que puedas divertirte
