Question 2: What does linear array sound mean? The connection mode is similar to that of ordinary speakers. The impedance of most linear arrays is 16 ohms, while the impedance that ordinary power amplifiers can load is 4 ohms or 8 ohms. Common connections are: the impedance of two 16 ohm speakers in parallel is 8 ohms, or the impedance of four 16 ohm speakers in parallel is 4 ohms; Then connect a power amplifier that can load these two impedances. However, it should be noted that after the speakers are connected in parallel, they are powered on. So it depends on whether the power of the amplifier can meet the increased power after the speakers are connected in parallel.
Question 3: What is the technology and manufacture of linear array audio speaker system? It has been developing steadily for many years. Recently, the situation has changed, and linear array speaker systems have appeared in many large-scale sports competitions and performances around the world. The opening ceremony of Guangzhou Olympic Sports Center adopted 200111Apogee linear loudspeaker system. This 80,000-seat stadium is said to have used four groups of 30 ALA9 speakers. Covering the whole playground, the effect is satisfactory. In recent years, the world's major professional speakers and speaker companies have launched their own linear array speaker systems. Among them: Meyer Audio M3D, Delia Audio -LA2 10, EV X-Line and Martin Audio W8L. These systems have different names, but their principles and characteristics are similar. At the same time, they are different, or they have crossed the sea in terms of structure, box technology and unit selection. It not only avoids the troubles of patent, imitation and plagiarism, but also is unique and enhances the selling point of the company. This naturally aroused the interest and concern of domestic counterparts. People keep asking questions, but there is little information in domestic publications at present, so it is necessary to discuss it. A linear array is a group of dense radiating elements arranged in a straight line with the same amplitude and phase. The earliest linear array loudspeaker system appeared in 1970s, but it was not perfect at that time. It appears as a "sound wall". Dozens or even hundreds of speakers are stacked vertically and horizontally to form a sound barrier. When the power of tens of thousands of watts is turned on, it is really shaking and the momentum is extraordinary. However, people soon discovered its shortcomings, not only requiring too many speakers, but also interfering with each other, which made the sound quality worse and affected the directivity and coverage. At the European AES conference in 1983, Philips introduced the concept of Bessel function matrix to solve this problem with a simple weighting factor. But if you want to make Bessel array, you must get the license from Philips and pay the corresponding price. Interestingly, companies that use linear array speaker systems remain silent about Bessel arrays. At present, the linear array loudspeaker system has been improved in an all-round way, which is not the same as the initial stage. It is also quite practical in structure. For example, dozens of boxes can be assembled, hung and wired in an hour, and horses can be put into use. Linear array is not only used for professional speakers, but also for high-fidelity speakers. Recently, the confidence series speakers launched by Dana adopt a DDC (Dana Directional Control), which is actually a small linear array of six speakers. Looking back at the background of linear array, in a large stadium, I hope the audience around the stands can hear uniform and clear sound. The common method is distributed sound reinforcement, and multiple sets of speaker systems are installed around the stadium, which requires multiple sets of distributed speaker systems. In addition, when singing on the main stage, the direction of the sound heard is for commercial purposes or other reasons, and some introduction materials are inconsistent with the actual direction, which affects the listening effect. For long-distance radiation, using high-power speakers, such as 600W, is not only expensive, but also has the problem of high-power distortion. Linear array can solve this problem. Olson's linear sound source at that time was composed of a large number of equal-intensity in-phase point sound sources distributed in a straight line at the same interval, but it was very small. If the number of point sound sources approaches infinity, the distance between point sound sources approaches zero, and it is relevant that nd=l where n is the number of sound sources; D is the distance between sound sources; F is the length of the linear sound source. The directivity diagram of the linear sound source is shown in Figure 2. It is a function of long wave, and it is a sound pressure curve expressed in polar coordinates and changing at a certain distance and angle. The directional vertical line corresponding to the zero-degree angle is characterized by rotating the plane with the straight line as the axis in three-dimensional space. As can be seen from this set of curves, the more loudspeakers of the latest and most advanced linear sound source, the clearer the pattern. In recent years, the manufactured linear array loudspeaker system consists of several loudspeakers overlapping on the vertical plane, forming a certain horizontal angle (generally 90. ) a beam with a narrow vertical direction. For an outdoor sports venue (the distance can exceed 100m), four linear array systems are enough to meet the requirements of sound field coverage, which is the advantage of linear array systems.
Question 4: Is the linear array speaker high pitched? Can you tell me specifically what linear array sound means and what is its function? This statement is wrong. In fact, linear array speakers also have bass, but because most linear array speakers use compressed speakers and then debug outdoor performances, most linear arrays only give people intermediate frequencies and medium-high frequencies, but no low frequencies. In fact, ultra-low frequency speakers or sub-low frequency speakers should use linear arrays.
Question 5: What does linear array speaker mean? I have never heard of wired array speakers, and there is no such classification in the speaker classification. You may be talking about transmission line speakers.
According to the box structure, it can be divided into sealed speakers, inverted speakers, labyrinth speakers, sound tube speakers and multi-cavity resonant speakers.
Classification is not important, but the choice of audio is important. Philip, the rambler is good. Philips is more expensive, and there are many fakes. When choosing, consumers are passive and difficult to distinguish. Although the rambler is cheaper, it still has shortcomings, that is, it mainly makes low-cost audio, so the sound quality is still lacking and cannot be too demanding. Similar to these two, there is BT- which uses ultra-instantaneous response unit, the high note is durable, the low note is not sticky, the strong note is not dry, and the weak note is not empty. The warm and mellow timbre shows the infinite charm of music, and you can feel the charming melody of British legend, appreciate the pedigree, sound quality and workmanship.
The style contained in AB bookcase comes from the unique design of BT-audio audio engineer, a desktop HIFI speaker with bedroom and study, with exquisite and elegant appearance. First-class workmanship and sound quality have created the myth of high-end and low price in the audio industry, and completely brought the concept of parity to the extreme!
I hope my answer can help you.
Question 6: What does linear array stereo usually contain? It depends on how you configure it. For example, 8+4 means 8 full-range boxes and 4 subwoofers. Of course, full frequency does not refer to our traditional speakers. Linear arrays have specific radiation angles.
You can also have 16+8, that is, 16 full frequency plus 8 bass.
Power amplifier, it depends on whether you have two channels or four channels. This kind of thing can be seen on the internet.
Different linear array configurations are different.
As for the mixer microphone, it goes without saying that the effect device is balanced and so on.
Question 7: What is the on-line array sound and what is the on-line array box sound? Its characteristics, function and price: Linear array sound system is composed of multiple groups of speakers in parallel or series, which can provide a much larger coverage than a single group of speakers. Mainly used in large-scale performance venues, the price range is generally between tens of thousands and hundreds of thousands.
Question 8: What does a set of linear array audio include? How much will it cost? There is a space box (for installing speakers), a grid (for hanging speakers), a chain block or an electric hoist (for lifting speakers). If the linear array is multi-frequency, it needs multi-core speaker cable (2-frequency 4-core, 3-frequency 6-core), supporting power amplifier, audio processor and mixer.