Line array speakers for performances in stadiums? The LA210 line array hosted by Live Arts Center has unveiled its new range of loudspeaker systems. This demonstration briefly introduced the technology used in the product in the form of a video, and the beautiful light show harmoniously highlighted each of the speakers. This was followed by a live performance by the CCB TTD Band, an experienced local band that performed some popular Chicago style music. Drums, bass, electric guitar, saxophone, trumpet, trombone and other instruments were used in the performance. As well as the vocals and background music, they are a good test for the system.
The LA210 line array is a high-end sealed speaker with a patented sound wave shaping lens device called a line element. It is mounted on a patented (pending) DE speaker.
Traditional horns emit a spherical wave front - a bit like a blown bubble - when used together with other horns, when the distance exceeds a certain distance *** the same wave front Interference and phase zeroing appear. In order for a line array to work, it must have a narrow vertical dispersion shape and a flat (or slightly curved) wavefront that is useful in conjunction with adjacent speakers. To achieve this, many manufacturers utilize a number of horns that have increasingly pronounced lengths. In theory, these long horns can make sound waves travel farther, but in practice they sound like the sound coming from a tube.
The patented line element is only 1 inch thick. It is constructed from numerous laser-cut steel panels stacked and bolted together. Many signal paths are only a few inches long, but create a uniformly flat wavefront at the throat of the speaker—in effect, these small arcs allow the chamber-like linear waves to be bent to extend vertical coverage. . Two BMS neodymium magnet 1" drivers are provided by the German GA company.
The line components are installed on the DE horn, which is also equipped with two B&C 10"d cone speakers. Behind the unit is a fully enclosed box. The speakers are mounted on the side panels of the horn with two exit holes, two small exit holes for each speaker. The exit orifice is located exactly at the intersection of the timeline and the high-frequency entrance. The result is a smooth integration of the full frequency range into the horn, with very little distortion from the high-frequency transmission and no damaging interference in the design other than that of crosstalk between the two cone speakers.
The bottom end of the LA210 line array series is the L215 subwoofer, which introduces a patented (pending) horn design. Two 10" loudspeakers are installed, so the front of the speaker is mounted on an 8" closed horn channel. The rear of the driver is located in the horn channel so it can provide additional phase output in conjunction with the front of the speaker.
This is where the technology lies, it’s very simple. How effective is his work? Very good.
The Live Arts Center has 12 state-of-the-art speakers and 8 subwoofers per side of this equipment. The line array is divided into four coverage areas using the DELIYA DCX2496 4-input/8-output digital loudspeaker management system, which allows for independent control of the floor and balcony of the theater. The subwoofers are also distributed in four areas to meet the bass response horizontal sound waves Spread waves.
In the theater, I tested a continuous 104dB sound pressure level C value (better than 100dB sound pressure level A value). The sound pressure in front of the subwoofer is as high as 106dB and in the first row of the hall is as high as 107dB. But by this time, the band had reached its final set. You'd expect a "25 or 6 to 4" when the drums and guitars perform alone, hopefully with more punch than on "Saturday in the Park." Coverage throughout the theater is very flat, even with the bass placed at cut-off level. The bass is very musical without bass noise or pop - some technical tricks are used here. < /p>
The LA210 line array series introduces advanced technology to overcome some of the problems that many devices have in working together. After thousands of hours of careful screening, the ideal product was selected from many original parts. It's solid and a lot of thought has been put into the hardware - allowing for easy and quick installation and shipping and the sound is fantastic.
Surprisingly, this system is relatively inexpensive compared to similar systems - a point of pride for Canada!