Subwoofers are getting to be even more crucial to your home theatre experience. When you visit your local theatre, you marvel not just at the images projected on the screen, but the sounds emanating around you. What really grabs you, though, is the sound you undoubtedly feel; the strong bass that shakes you up and gets you in the middle of your gut. A particular speaker, referred to as a subwoofer, is accountable for this experience. The bass speaker is made merely to reproduce the lowest of audible frequencies.
Passive Subwoofers Passive sub woofers are driven by an external amplifier, from the same fashion as other types of speakers in your system. The top consideration at this point is that since extraordinary bass needs more capacity to reproduce low frequency sounds, your amplifier or receiver needs to be able to output enough electricity to sustain bass effects within the bass speaker without killing the amp. The level of power is dependent upon the necessities from the speaker and the size of the area (and how much bass you are able to stomach!).
Powered Sub woofers To solve the dilemma of inadequate power or other characteristics which might be lacking in a amp or receiver, powered subwoofers are self contained speaker/amplifier units in which the characteristics belonging to the amplifier and sub woofer are optimally harmonized. For a side benefit, all a powered bass speaker needs is known as a line output from your receiver. This arrangement needs a lot of the energy load away from the amp/receiver and allows the amp/receiver to power the mid range and tweeters easier.
Down-Firing and Front-Firing Bass speakers Front-firing subwoofers make use of a speaker mounted so that it radiates the audio through the front or side of the bass speaker enclosure. Down firing subwoofers employ a speaker thats generally mounted in order that it radiates downward, towards the floor.
Ports and Passive Radiators Some subwoofer enclosures utilize one additional port, which pushes out quite a bit of air, increasing bass response from a more efficient manner than sealed enclosures. Another kind of enclosure utilizes a Passive Radiator in addition to the speaker, rather than a port, to boost efficiency and preciseness. Passive radiators may either be speakers with the voice coil removed, or a flat diaphragm.
Cross-overs The crossover is known as an electronic circuit that routes all frequencies below a specific point to the subwoofer; all frequencies above that point are duplicated to the primary, middle, and surrounding speakers. Typically, an effective bass speaker has a "cross-over" frequency of about one hundred hertz. Gone is the requirement for those large 3-Way speaker systems with 12 or 15 inch woofers. Smaller sized satellite speakers, optimized for mid-to-high frequencies, that use up significantly less space and therefore are now common in numerous home cinema systems.
Deep Bass is Non Directional In addition, while the deep bass frequencies reproduced by way of the subwoofers are non-directional (as frequencies which are at or below the threshold of hearing). It is extremely hard for our ears to truly pin-point the direction in which the sound is originating from. That's the reason we can only sense that an earthquake seems to be all around us, rather from 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.
In Conclusion Despite all of the technical features and design aspects of subwoofers, the kind of subwoofer you choose for your personal system depends on the characteristics of the room and your own preferences.
Passive Subwoofers Passive sub woofers are driven by an external amplifier, from the same fashion as other types of speakers in your system. The top consideration at this point is that since extraordinary bass needs more capacity to reproduce low frequency sounds, your amplifier or receiver needs to be able to output enough electricity to sustain bass effects within the bass speaker without killing the amp. The level of power is dependent upon the necessities from the speaker and the size of the area (and how much bass you are able to stomach!).
Powered Sub woofers To solve the dilemma of inadequate power or other characteristics which might be lacking in a amp or receiver, powered subwoofers are self contained speaker/amplifier units in which the characteristics belonging to the amplifier and sub woofer are optimally harmonized. For a side benefit, all a powered bass speaker needs is known as a line output from your receiver. This arrangement needs a lot of the energy load away from the amp/receiver and allows the amp/receiver to power the mid range and tweeters easier.
Down-Firing and Front-Firing Bass speakers Front-firing subwoofers make use of a speaker mounted so that it radiates the audio through the front or side of the bass speaker enclosure. Down firing subwoofers employ a speaker thats generally mounted in order that it radiates downward, towards the floor.
Ports and Passive Radiators Some subwoofer enclosures utilize one additional port, which pushes out quite a bit of air, increasing bass response from a more efficient manner than sealed enclosures. Another kind of enclosure utilizes a Passive Radiator in addition to the speaker, rather than a port, to boost efficiency and preciseness. Passive radiators may either be speakers with the voice coil removed, or a flat diaphragm.
Cross-overs The crossover is known as an electronic circuit that routes all frequencies below a specific point to the subwoofer; all frequencies above that point are duplicated to the primary, middle, and surrounding speakers. Typically, an effective bass speaker has a "cross-over" frequency of about one hundred hertz. Gone is the requirement for those large 3-Way speaker systems with 12 or 15 inch woofers. Smaller sized satellite speakers, optimized for mid-to-high frequencies, that use up significantly less space and therefore are now common in numerous home cinema systems.
Deep Bass is Non Directional In addition, while the deep bass frequencies reproduced by way of the subwoofers are non-directional (as frequencies which are at or below the threshold of hearing). It is extremely hard for our ears to truly pin-point the direction in which the sound is originating from. That's the reason we can only sense that an earthquake seems to be all around us, rather from 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.
In Conclusion Despite all of the technical features and design aspects of subwoofers, the kind of subwoofer you choose for your personal system depends on the characteristics of the room and your own preferences.
About the Author:
Having the proper speakers is really crucial to a great sounding system. Make sure to purchase a theater sub woofer as you do not know what your are missing.Home Theater Subwoofer make a large difference in theater viewing at home
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