Sub Woofer Reviews
Subwoofers are becoming increasingly crucial to your home theater experience. When you visit the movie theatre, you marvel not only at the images projected on screen, but the sounds emanating all around you. What really grabs you, though, is definitely the sound you actually feel; the deep bass that shakes you up and gets you right in the gut. A specialty speaker, referred to as a sub woofer, is accountable for this experience. The bass speaker is manufactured merely to reproduce the lowest of audible frequencies.
Passive Subwoofers Passive subwoofers are energized by an external amplifier, in the same fashion as other types of speakers in your system. The top consideration here is that since extraordinary bass needs more power to reproduce low frequency sounds, your amp or receiver needs to be prepared to output enough power to uphold bass effects in the subwoofer without draining the amp. The level of power depends on certain requirements with the speaker as well as the size of the room (and just how much bass you may stomach!).
Powered Subwoofers To eliminate the situation of inadequate energy or other characteristics that might be lacking in a receiver or amp, powered subwoofers are self contained speaker/amplifier units wherein the characteristics belonging to the amplifier and sub woofer are well synchronised. As a side benefit, all a powered bass speaker or subwoofer needs is usually a line output from your receiver. This arrangement needs a lot of the electricity load out of the amp/receiver and enables the amp/receiver to power the mid range and tweeters without difficulty.
Front-Firing and Down-Firing Bass speakers Front-firing sub woofers utilize a speaker mounted so it radiates the sound from the side or front of the bass speaker enclosure. Down-firing sub woofers utilize a speaker thats generally mounted so that it radiates downward, on the floor.
Ports and Passive Radiators Some bass speaker enclosures also employ a supplementary port, which pushes out more air, improving bass response from a more efficient manner than closed enclosures. A different type of enclosure runs on the Passive Radiator along with the speaker, rather than a port, to improve efficiency and preciseness. Passive radiators can either be speakers with the voice coil removed, or else a flat diaphragm.
Cross-overs The crossover is usually an electronic circuit that routes all frequencies below a particular point to the subwoofer; all frequencies above that point are duplicated to the main, center, and surrounding speakers. Typically, a very good bass speaker has a “cross-over” frequency of approximately one hundred hertz. Gone is the requirement for those large 3-Way speaker systems with 12″ or 15″ woofers. Smaller satellite speakers, designed for mid-and-high frequencies, that occupy a lesser amount of space and generally are now common in most home theatre systems.
Deep Bass is Non Directional In addition to that, since the deep-bass frequencies reproduced by the subwoofers are non-directional (as frequencies that are at or below the threshold of hearing). It is extremely hard for our ears to successfully pin-point the direction where the sound is originating from. That’s the reason we are able to only sense that an earthquake looks like it’s all around us, rather from coming from a particular direction.
Sub woofer Placement Because of the non-directional sound that is reproduced from the sub woofer, it can be placed anywhere in your room. However, the best results will depend on size of the room, floor type, furnishings, and wall construction. Typically, best placement for a subwoofer is by the front of your room, simply to the left or right of the main speakers, or in a front corner of your room.
The Conclusion Despite all the technical specs and design aspects of subwoofers, the type of sub woofer you select for your system relies on the characteristics of your room and your own preferences.
Having the proper speakers is really crucial to a great sounding system. Make sure to purchase a theater subwoofer because you don’t know what you’ll be missing.Home stereo sub woofers make a large difference in theater viewing at home