A mid-range speaker is a speaker driver that reproduces sounds in the frequency range from 250 to 2000 Hz. It is also known as squawker .
Mid-range drivers are typically cone types or, more rarely, dome types, or compression horn drivers. The diaphragm radiating from the mid-range cone unit is a truncated cone, with a voice coil attached to the neck, along with the spider part of the suspension, and with a cone encircling at the far end. Conical mid-range drivers usually resemble small woofers. The most common materials used for mid-range cones are paper, sometimes impregnated and/or surface-treated with polymers or resins to improve vibration damping. Other mid-range cone materials include plastics such as polypropylene, Cobex, Bextrene, Kevlar fabrics, fiberglass, carbon fiber, or light metal alloys based on aluminum, magnesium, titanium, or other alloys. Surfaces that radiate from the mid-range dome are typically 90 degree balls, made of fabric, metal, or plastic film, with suspension and voice coil located on the outer edge of the dome. Most professional mid-range concert drivers are compression drivers that are coupled to the horn. Very few mid-range ranks are electrostatic drivers, planar magnetic drivers, or ribbon drivers.
A mid-range driver is called to handle the most significant part of the audible audible spectrum, the area where the most fundamental is emitted by the instrument and, most importantly, the human voice, lies. This area contains most of the most familiar sounds in the human ear, and where the distinctions of faithful reproduction are most easily observed. It is therefore important that a good quality mid-range driver is capable of low reproduction of distortion.
Most small television and radio sets have only one mid-range rider, or two for stereo sound. Because, in the case of television, the most important aspect is speaking, it works well. Because the most sensitive ear to medium frequency generated by mid-range drivers and amplifiers both can be low power, while still giving what is considered a good sound both in terms of volume and quality.
Video Mid-range speaker
Installation problems
The mid-range drivers are commonly used in three way multi-driver speaker systems. Therefore, there are special considerations involved in acoustic combination between mid-range and both low frequency (woofer) and high frequency drivers (tweeters). The nature of the drivers on both sides of the mid-range, and the mid-range itself affects the selection of the frequency and slope of the crossover. Almost all crossovers are passive circuits, designed to match driver characteristics and installation, and are built from capacitors, inductors and resistors. Active crossovers or 'electronics' are used in some high-performance hi-fi speakers, and in professional sound reinforcement systems.
The placement of mid-range (and tweeter) drivers on the baffle enclosure significantly affects the driver output, and the material surrounding the mid-range and tweeter drivers of the baffle can produce (or inhibit) the reflection of energy from baffle face, or other items, further affect the output. Grilles, especially those with structural frames, can further modify the output of the entire speaker system. One of the terms used in design circles to describe some of these diffraction artifacts and reflections is the effect of the
When the mid-range speaker is installed in the same box as the woofer, it will have its own small sub-enclosure, or sealed back, to prevent backwave woofer radiation into the box from affecting conical or mid-range domes.
Maps Mid-range speaker
See also
- Loudspeaker
- loudspeaker casing
- Audio crossover
- Speaker complete
- Tweeter
- Super tweeter
- Woofer
- Subwoofer
References
Source of the article : Wikipedia
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