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Loud Speakers. Theory Performance, Testing and Design

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Loud Speakers. Theory Performance, Testing and Design

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Advise on what Speakers to get. PA, DJ, BAND, ACT

!: Advise on what Speakers to get. PA, DJ, BAND, ACT

www.djtutor.com Advise on what Speakers to get kit used in video was KAM KXR2000 POWER AMP, KXD50 CROSSOVER, VORTEX 15 SPEAKER, Intimidation PI-110 none powerd 10" speaker, GEMINI GX-1001 Powerd speaker and small Pearl-5 powerd moniotor --------------------------------- Nothing in this tutorial is provided as legal advice. It is provided for information purposes only

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PYLE-PRO PPHP1299AI - 12'' 1000 Watt Powered 2 Way Full Range Loud Speaker System w/Built in MP3 /USB & Ipod Dock

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12'' Subwoofer Power Switch and Digital amplifier Built-in Ipod Docking Station USB 1.4" Titanium Compression Driver MP3 control with LCD display XLR and 1/4" Mic Inputs XLR Stereo RCA Line Input XLR and 1/4" Line Outputs Volume, Bass Treble Controls 2-Way, 2-Speaker Professional speaker High Efficiency Mid-Low Woofer 35mm Titanium Dome Horn Driver PTC Driver Protect Power Output: 1000 Watts Impedance: 8 Ohm ±20% Sensitivity: 101±3dB Frequency Response: 50Hz-20 KHz (-3dB) Metal Grill To Protect The Woofer/Plastic Cabinet Crossover Frequency: 3.5K Hz 35mm Speaker Stand Mount 110/220 AC Dimensions: 15.6''W x 12''D x 23.3''H

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The Technology and Functioning of the Full Range Loudspeakers

!: The Technology and Functioning of the Full Range Loudspeakers

There are a number of full range loudspeakers such as Lowther, Fostex, Diatone and many more. They can cover most of the major frequency span produced by human voice and common musical instruments without a crossover to another driver. A full range loudspeaker drive unit is known to reproduce as much of the audible frequency range as possible with a high quality reproduction of sound. This is very faithful to the original master recording. In other words, it has high fidelity. It can reproduce sound within the boundaries imposed by the physical limitations of the specific design.

There are only a few manufacturers producing full range loudspeakers, because of its high fidelity use. A full range drive unit consists of a single driver element, or a voice coil. They are used to control and move a diaphragm. Usually, the cone structure of the full range drive unit includes the optimizations to enhance a high frequency performance. The shape and the materials used in the cone of such one loudspeaker are generally optimized as well.

The technique for using a compliantly coupled or modified diaphragm for the low frequencies, auxiliary whizzer or a modified dust cap, is a kind of mechanical crossover. A modified dust cap is also known as a dome for the high frequency response of a speaker. Mechanical crossover is commonly found in full range loudspeakers designed to cover as much of the audio band as possible.

The requirements to design a full range loudspeaker include two of the most important features, the low and the high frequency response. A full range driver is generally limited to cover the audio spectrum of the range above perhaps 100 hertz. This excludes the lower frequencies, they are usually handled or amplified by a separate sub woofer or by a cabinet specially designed for low frequency reinforcement.

The full range speaker must have good sensitivity for lower frequencies including a light voice coil for high frequencies. These speakers use much larger and powerful magnet than any other usual speakers. This improves the sensitivity. On the other hand it lowers the power requirements at low frequencies as well as allowing a lighter voice coil.

There are a wide variety of full range loudspeakers at different prices. The cost of a full range drive unit is based on its application ranging from inexpensive multimedia loudspeakers, to costly esoteric cabinets. The latter use larger transmitting line or horn loaded enclosures to increase low frequency output.

Critics have cited the inability to reproduce fast and complex musical forms of the full range loudspeakers. They have cited that the reproduction of the low frequencies with the same diaphragm, which also handles high frequencies, causes a Doppler distortion when one surface attempts to produce both concurrently. They also cited that such loudspeakers have reduced the output at the extreme, as they occasionally result in a boxy or a bandwidth limited midrange sound without much treble.

Besides all the critical comments cited above, there are many advantages associated with them. They contain all the speaker elements in one basket. They consist a woofer for the low frequencies and a tweeter mounted onto the woofer to produce the high frequencies.

The Technology and Functioning of the Full Range Loudspeakers

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Play It Loud- Black

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Nice Design by :DreamGearOver All Rating Reviews : Great Deal : $18.50Date Created :Apr 06, 2011 13:16:56

The Play It Loud is a great way to get the best stereo sound from your DSi. The Play It Loud features dual stereo speakers built into an ergonomically designed game handle, stores 2 games and has a LED power indicator light.

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All About Horn Loudspeakers

One of the oldest forms of loudSpeakers are the horn loudSpeakers that not only provide pure, high efficient, natural music but also fast and accurate transient response.

Basically what happens in the horn loudspeakers is that the diaphragm that is run by an electromagnet is supported by a horn, which improves the coupling efficiency between the speaker driver and the air. However, the horn is like an acoustic transformer that usually gives impedance matching between the diaphragm material and the air, having a low density. This will show the difference in density and motion of the air and of the driving element.

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The first horn speaker that was invented looked very simple. It was a horn attached to a receiver and the sound quality was just awful. But it was better than that of the triode tube that was the base concept behind the horn speakers. Actually, this triode tube amplified the electric signal to the possible level and it could also produce audible output while driving the receiver. But the output power was really low. And later this conception gave birth to high efficiency loudspeakers, which produced high sound pressure level. It was in 1927 when Wente and Thuras, two Bell Laboratory engineers invented the compression horn driver, or rather say a driver.

All About Horn Loudspeakers

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Nice Design by :DreamGearOver All Rating Reviews : Great Deal : $18.50Date Created :Mar 31, 2011 19:34:09

The Play It Loud is a great way to get the best stereo sound from your DSi. The Play It Loud features dual stereo speakers built into an ergonomically designed game handle, stores 2 games and has a LED power indicator light.

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• Nintendo DSi XL Bronze
• Photo Light - Black
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• Mario vs. Donkey Kong Mini-Land Mayhem!

Talking about the qualities of horn loudspeakers, the first thing that attracts is the harmonic, distortion less sound. It also offers a dramatic increase in dynamic capability in comparison to other such speakers, which suffered from dynamic compression. Horn loudspeakers have the capability to run efficiently with low powered amplifiers like single ended triode amps. Moreover, they can be designed to reproduce a wide range of frequencies using a single and small driver.

But the problem with horn speakers was that they were quite big and heavy. And soon after World War II more powerful and portable systems came into the market. But it will be wrong to say that they were completely out of demand because, although the horn loudspeakers lost the major demand but they survived in movie theatres.

These speakers are used for audio application due to the fact that horn reduces the need for exotic speakers. They are even used by audiophiles for sound reproduction. But there is a fact that not all type of horn speakers are used for this purpose. As there are ample designs that differ in length, material, drivers and many such things, so it is very confusing to state that which form is the best.

Horn loudspeakers are also used for public address and concerts. As it is mentioned earlier they provide high sound pressure level that is basically necessary for sound reinforcement and thus used for public address applications. They are used in concerts due to the high volume bass reproduction so that the bass can be heard as well felt by the concert goers. And for this reason sometimes multiple loudspeakers in a group are used. But it should be noted that they give the same benefit as a single horn loudspeaker with a big mouth area. But off course, it should include greater power of multiple drivers.

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