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[M768]Multimedia Home Theater Speaker
by Jonathan Schultz, Jon
There are many decisions out there pertaining to home theater. Often, the quest to find the perfect setup can ensure finding one's own insanity, similar to working for the boss; no pun intended. Where to begin, where to end; that is the question. Like finding the perfect woman (ok we all know the perfect woman doesn't exist), but finding the perfect home theater can often feel like you're digging for gold. Whether it's a complete 5.1 or 7.1 system or even a 2-channel setup, you're in for a headache if you don't know where to start or even the right questions to ask.

An amplifier or means of power should be, or rather suggested the piece of equipment you'll want to start with first. Generally, the heavier the amp, the more current or amperage it will generate to each speaker, helping the sound to come through full and clean. Often, a receiver with a built in processor and amplifier in one is usually sufficient for playing a movie and/or 2-channel music, but separates may offer a step up in sound quality. Although, separates may be pricier, they're really the way to go for obtaining the best sound, especially if the speakers you're driving on more on the larger side.

Speakers are the next choice to fulfill your hoss setup. By going with the same series and type of material used for each driver will ensure the best timbre match. Regardless of 5.1 or 7.1, movies will sound more life-like when you ensure you have a good timbre match. You'll want to first start by choosing a center, then the mains, next your surround backs (4th and 5th channels), and last in the case of 7.1, a pair of speakers for side surrounds. A good choice for side surrounds are often a set of dipoles as you can disperse more sound in opposite directions of the room, creating a larger feel similar to that of a movie theater.

Depending on whether this system will be used for movies, music or both, you'll want to choose your front main speakers for this application. If you have a somewhat large listening room, going with towers may be the best option. If the space you're in is relatively small, going with bookshelves and placing them on stands may be the way to go. Not only will you generate a fuller response with towers, the bass will be greater and reaching a lower frequency will naturally happen due to a larger cabinet size.

The speaker often depicted, as the most important in an HT environment is the center channel, as about 60% of the information pertained in a movie comes through this channel. Having a center speaker with larger drivers and a decent-sized internal cabinet volume will prove valuable for maintaining a constant volume across all channels in your HT system, regardless of the movie.

Rear speakers are the next selection for your HT system. If this system is going to be used primarily for movies, dipoles would be the way to go. However, if you want to incorporate SACD and DVD audio into this same system, going with more of a direct bookshelf or smaller tower is often recommended. With dipoles, the phase on one of the tweeter is reversed to enhance the feel of space in your listening environment with movies. Bookshelves or towers will create a fuller response due to the increased excursion present in each driver and larger internal volume of cabinet. These are suggested for rears with SACD and DVD audio to represent that of a live concert.

A subwoofer is needed if your primary choice of movie type is action/adventure films. Without a sub, explosions just won't sound the same. Even better would be the existence of 2 subs; one in each corner of the room. This would provide an equal bass response or pressure, and wouldn't necessarily have to turn up one sub to its threshold, as you would then have 2 subs distributing the bass load. The most common type of sub is the port-hole design. This design allows the internal cabinet pressure generated by the driver to be released through the port hole. This allows the driver to obtain greater depths of excursion and lower frequencies.

The second type of sub is the sealed enclosure design. This type of sub is most versatile and can produce tight, accurate bass for music, and also have the ability to obtain the depths for movies. The cabinet withholds the pressure produced by the driver, resulting in time-aligned bass of which can be matched with the upper frequencies in your favorite song. Here you would have the opportunity to add more bass to music without it sounding like it's unnatural or not part of the song.

The third type is the passive radiator whereby you have an active driver with at least one or more inactive drivers that work in unison with the active driver to bring you an overall lower frequency response. This design is efficient in a way where the cabinet size can be on the smaller side, but still have the ability to generate some serious bass. These type of subs work fairly well playing music with only minimal delay, but come alive in the sub-low frequency world for movies.

Speaker wire is needed to transfer the electrons from your receiver/amplifier to each channel, where by the means of electromagnetics, these electrons are transformed to audible sound waves. The thicker the speaker wire, the higher the potential for more electrons to travel to each speaker. If you're running speaker wire longer than 25 feet, it's often recommended you have speaker wire at least 12 gauge.

We all know what bass can do to a movie soundtrack. It can create drama, danger, even a feeling of strength depending on the visuals that go along with it. Bass is one of the most important elements of any audio format because it provides balance and contrast to the overall score of a movie, television show, even commercial. Quality bass in a sound system is impressive while not being overpowering.

In a 5.1 surround sound system, one of the most common for home theater installations, the ‘.1' is the bass. The speaker for the bass sounds on a soundtrack is called a subwoofer. Lower frequency sound waves use a larger diaphragm to move the amount of air it takes to make these sounds. While smaller speakers can produce these lower frequency waves, they typically cannot produce the kind of quality that one would expect from a quality theater. Smaller speakers can often sound tinny when trying to produce these lower sounds. Large home theatre speaker towers are capable of handling this part of the soundtrack though it may require the reduction of sound quality from the mid and high range frequency speakers.

Choosing a good sound system with a quality bass speaker is not impossible, even for people who do not have a lot of experience. First, start with the subwoofer. Homeowners will need to consider whether they require a passive sub or an active woofer. A passive subwoofer does not need a separate power supply. Rather it uses power from the same amp that is driving the other home theatre speakers. Volume from the amplifier can usually be controlled, there is less control overall with a passive sub. An active sub has a separate power supply. This means that the signal received from the amplifier/receiver is enhanced by the subwoofer itself, without taking any of the power from the other speakers.

Once you have your home theater subwoofer and other speakers picked out, lay them out to get the best sound from each. Bass sound is omni-directional, meaning that it goes out from the speaker in all direction. To decide where to place the subwoofer, put it in the same position that you will be sitting in, whether it is on the couch facing the television screen or in a home theater chair. Turn on a favorite film then move around your room and listen. Find the spot that the bass sounds best and move your subwoofer to that location. It can be set on the ground, on a shelf or off of a wall depending on where you feel the best low tone sound is heard. Since the sounds are going out and bouncing around the room in roughly the same direction, the sound should be great when you get it into place.

We've all heard the laments of mothers and fathers forced to deal with the incessant thumping and pounding of boom box bass lines from their adolescent's car or room. There is something to say for the potential for this phenomenon to occur in a home theater as well. While walls, ceiling and floor will generally block high sound frequencies from leaving the room, they can actually increase the volume of the lower range sounds. While laying out your speakers, try to also find the right volume balance for all frequencies that your family can enjoy the sound quality a bass can provide without driving your neighbors crazy.

~Ben Anton, 2008

Article Source : Ideas For Small Businesses

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Both Jonathan Schultz & Ben Anton are contributors for EditorialToday. The above articles have been edited for relevancy and timeliness. All write-ups, reviews, tips and guides published by EditorialToday.com and its partners or affiliates are for informational purposes only. They should not be used for any legal or any other type of advice. We do not endorse any author, contributor, writer or article posted by our team.

Jonathan Schultz has sinced written about articles on various topics from Home Businesses, Family. Don't buy any , make sure you read our
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