The crossover frequency provided in the speaker design.
A crossover is installed exclusively in a multi-band model (see "Number of Bands"). This is an electronic filter that ensures the division of the incoming audio signal into separate frequency ranges and directs each range to "its" set of speakers. And the crossover frequency shows where the boundary between these ranges lies. If there are more than two bands, there will be several such boundaries: for example, for a four-band system it may be specified "0.15 / 0.8 / 2.8 kHz" or "0.12 / 1 / 3.8".
In most cases, this parameter has mainly a reference value: the frequencies of the built-in crossover are selected to match the operating characteristics of the speakers installed in the speaker system.
The material from which the cabinets of the speakers included in the speakers are made. Not only the appearance, but also the sound characteristics depend on this parameter. The most common options are:
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MDF(Medium Density Fiberboard — medium density fibreboard). The most popular material today, found in almost all price categories. At a rather low price, MDF has good acoustic characteristics, almost as good as natural wood.
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Tree. Wood can be classified as a premium material: it looks nicer than MDF, but in terms of acoustic properties it does not have significant advantages, but is noticeably more expensive. Because of this, this material is found mainly among high-end speakers designed for demanding users.
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Plastic. Plastic is low cost and easy to process. Its acoustic properties are worse than those of MDF and, moreover, wood; however, this shortcoming can be easily compensated for. So such cases are very popular nowadays, they are found even in high-end speakers.
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Metal. Most often, metal speaker cabinets are made of aluminium alloys. This provides an elegant appearance, in addition, such cases are very durable, reliable and are not afraid of scratches, dirt and moisture. On the other hand, metal is not cheap, and in some models it gives the sound a specific coloration that may not be to every
...one's liking. To eliminate this effect, various design tricks can be applied, which, again, additionally affect the cost.
Note that for systems with a subwoofer (2.1, 5.1, etc., see “Number of channels”), this parameter specifies the material of the main speakers, while the subwoofer is in most cases made of MDF.The total weight of all components of the speaker system.
