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46911 2008 年 02 月 01 日 12:12 Reading (loading. ..) Comments (1) Category: Personal Diary
a lot people think that professional sound very complicated, error-prone, especially for large dance performances, public address and other important meetings, even experienced sound engineer, after experiencing an important figure in the Special account will go wrong. If indeed this regard stresses hard enough.
However, this difficult issue is only one side, sound engineer for most hardest thing in terms of the so-called little knowledge of professional audio: with a
this way, we want to correct errors on some basic concepts, in determining the past, let us correct the error before a concept: professional audio does not mean home stereo. There are essential differences between the two! All our discussions are in the range of professional audio, and more specifically say we only discuss the power situation under the PA.
professional speaker and civilian speakers on a different performance in the bass, bass civil case is heard, and professional bass box is felt. What is the feeling that he is relying on the vibration of the air, to convey to our body, we feel the air waves, the feeling is very special. As in the bottom, we hear the sound in fact, many also rely on feel. To feel the bass, particularly high requirements on the box.
in power, we should achieve the perfect sound, we must focus on resolving:
The first is a box vibration. Because the box will be offset by a specific frequency vibration of the sound pressure, resulting in distortion; the other worst-case vibration, it can issue a specific geometric noise, which impacts on each other like two pieces of wood sound. Of course, such noise is caused by the wood and the production process, such as wood easily deformed / backward production technology / small piece of wood when sawn by the large did not become a straight line, and appear jagged, thus resulting in the bonding process can not be completely uniform,
tods online shop, and there was noise.
second unit resonant. The unit structure is different, why should Aluminum Cone stand? Nothing in particular under the low power, high-power, because of the role of noise, the number of speakers will vibrate the surface (of course the ideal speaker design, the power should not be any part of the next speaker feel the vibration) the vibration back to the fixed at the top of the unit, then if the speaker unit frame is not strong enough Peter, bass cone frame and the panel will also vibration, when the voice coil in the center of the magnetic fluid would be destroyed,
tods womens shoes, causing serious distortion, or even result in wiping circle, and finally blown voice coil.
some manufacturers to reduce costs, with a thin iron plate to do the speaker frames, speaker quality is not good,
tods sale, this is one of the reasons. We usually 150WRMS Penjia power used by the speaker of its iron thickness can not be less than 1.2mm. Of course, is the best aircraft aluminum cone, because the frame of the cone frame is cast aluminum cone instead of metal forming, stamping so the geometric deformation of the iron cone frame than much smaller.
third source,
tods shoe, the so-called sound source. We often go to dance, I heard the bass from Bass and audio CD is completely different, not because of bad disco speakers, (of course there is also bad), but not the sound source,
tods shoes, specifically radio methodological errors. Many years ago we had live radio on counseling skills, how to close the bass drum sound? Bass Bass features in radio. Here we just want to say, in the ballroom if you do not feel good bass, the DJ is the first response is received counseling, and should not doubt the quality of used speakers.