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Sound system easily overlooked Ten Frequently Asked Questions

PubDate:2016-04-01Author:Sources:Views:1664

For music lovers, has set its own sound system, and wherein the speaker system - speakers, the sound quality of the replay plays an important role, so in the choice of speakers, will be painstaking, but in addition relatively speaker technology indicators and listening evaluations about speakers and some common and easy for people to ignore the problem, but the replay with sound effects with no small relationship.


First, some of the new speakers need to go through a period of use, in order to play its excellent performance, which is called the "pot." Otherwise, it will become more rigid and reproduction of sound overly bright, or relax tight, the time course of different speakers can vary very huge, ranging from tens of hours to several days.


Second, a small bookshelf speakers due to limitations of physical factors, its bass dynamic range can not be too big, so even though it's very low bass extension, its practical significance is not large, visible to pursue low-frequency limit of small speakers, the actual effect converting over, but not suitable for bursting music replay.


Third, the speaker of the nominal impedance common are two kinds of 4Ω and 8Ω, 4Ω impedance speaker, although the power amplifier output to make more power, but because of the low impedance of the power amplifier output current capability requirements, which Some power amplifier headroom is not often result in increased distortion, and low-impedance speaker damping adverse affect low-frequency control. Also some speaker impedance in the actual work at certain frequencies may drop as low as half the value, it is better to choose an impedance of 8Ω speakers. (For example, many AV amplifier load impedance will not be lower than 6Ω)


Fourth, small-caliber speakers speaker unit, although you can get a very good sound effect, but the speaker is only available in close to listen. For larger space of the room, such as the hall burst, should choose to use a larger-diameter speaker unit large speakers, listening in order to achieve good results.


V. dumbbell speaker uses two identical low-frequency speaker unit, symmetrically on both sides of the layout of the high frequency unit, can achieve better low frequency and transient response, high sensitivity and power handling, wide dynamic nonlinear distortion compared small, but it's integrated in-band frequency characteristics tend to produce low and narrow vertical direction, so it should be noted midrange performance. But following some dumbbell-type speaker unit only as a low-frequency reproduction, the reproduction unit above a low frequency, the so-called division 2.5, the above disadvantages can be overcome.


Sixth, the bi-wiring speakers, has two sets of speaker terminals, such as the common connection, two terminals in parallel, then the speaker wires must be connected to the pair of woofers in the terminal, otherwise due to the two terminals in parallel with the impact of wiring or copper, the effect of low frequency replay will suffer most.


Seven, Acoustic speakers are placed in the ground, but often due to the resonance of the ground and affect the balance of the replay of the sound, bass and even cause hair boom, so in most cases, the spikes is indispensable. Speaker holder for the most part to be equipped with a pair of highly suitable tripod, random on the table cabinet, due to the reflection of sound waves, often make the speaker replay characteristic changes. High frequency unit with mirror symmetrical design speakers (ie, high-frequency unit is not baffle the middle), when positioning the high frequency bias to the inside of the unit.


Eight between the speaker and stand, preferably with three small pieces of foam double-sided adhesive to stick to the bottom of the triangle position of the speaker, and then put up the tripod, so the speaker to have a certain adhesion between the tripod. Otherwise, inadvertently to the speaker, the speaker can easily slide the stand to tip over and fall to the ground broken.


Nine, loud mouth bass reflex opening set after the speaker baffle, which is subject to adjustment with the distance from the back wall, in order to achieve a reasonable normal low-frequency performance. Too close, will generally produce low frequency sound excessive or vague, too far away, there may be insufficient to make a low frequency. Loud mouth front baffle of the speaker, may not have to worry about the problem of reflection hole, even on the short cabinet also.


X. vulnerable speaker placement and room acoustics characteristics affect placement position. Speakers placed in different space environments, its sound effect will be different. Even with the same speaker, and equalized replay system allows the same frequency response, as long as the size of the room is different, then it burst into effect will be different.


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