Size
The size of the speakers of the acoustic system; in speakers with different driver sizes (component and coaxial, see "Type"), the size is determined by the diameter of the largest (woofer) driver. The size of the speaker determines primarily its ability to work with low frequencies. It is believed that acoustics up to 4 "is practically not suitable for low frequencies (regardless of the frequency range), 5-6" refers to the average level, and speakers of
6" or more even allow you to do without a subwoofer. Also, the size affects the installation options. So , some cars may provide seats for acoustics of a certain size — this limits the choice.And for large acoustics, there may not always be a place in cars with cramped interiors.
Number of bands
The number of separate frequency ranges into which the total frequency range reproduced by the speaker is divided. In this case, a separate speaker (or even several) is allocated for each range (band). the optimal speaker parameters for each band are different. Therefore, multi-band speakers are considered to provide better sound quality than full-range speakers. In modern multi-band car audio,
2(HF / LF) or
3(HF / MF / LF) bands are usually provided.
Rated power
Rated power of the speaker system. Most often, the average (rms) sound power is indicated as the nominal one.
The most obvious point associated with this characteristic is sound volume: the more powerful the sound system, the louder the sound it can produce, all other things being equal. In addition, compatibility with an external amplifier depends on this indicator: its power should not exceed the power of the sound system, otherwise overloads and damage to the speakers are possible.
Frequency range
The total audio frequency range reproduced by all speaker speakers.
Obviously, this range should not be too narrow, so that the acoustics do not cut off the lower and/or upper frequency limits of the reproduced sound. At the same time, the human ear perceives sound within 16 Hz - 22 kHz, and it simply does not make sense to provide speakers with a wider frequency range. We also recall that in
mid-frequency acoustics and tweeters, reproducible frequencies are limited due to specialization (for more details, see "Type"). And the overall sound quality will depend not only on this indicator, but also on a number of other features.
Tweeter diameter
The diameter of the tweeter (speakers) provided in the design of the speaker.
The diameter affects the amount of space needed to install the speaker. However, large cones are not needed for high frequencies, so this dimensions is usually small and does not really affect the overall dimensions of the speaker. The only exception is separate tweeter tweeters (see "Type"), where the overall dimensions of the cabinet are directly related to the dimensions of the cone.
Midrange speaker diameter
The diameter of the midrange speaker(s) provided in the speaker. Midrange in this case may also mean a combined woofer/midrange speaker or an emitter of broadband acoustics (see "Type").
The size of the midrange speaker is often a key parameter that determines the overall dimensions of the acoustics and, accordingly, the requirements for its installation location. Exceptions can only be found among models with separate woofers (see below). But from the point of view of acoustics, a larger size allows you to achieve higher power and richer sound, including on bass.
Woofer Diameter
The diameter of the subwoofer (speakers) provided in the speaker.
This size is indicated only for models with separate bass drivers. In such acoustics, it is the low-frequency emitter that is the largest (this is due to the physical features of the bass range). Accordingly, the space occupied by the entire system is determined mainly by the diameter of the woofer. And since the power and richness of the bass also directly depends on the size of the radiator, when choosing, one has to proceed from a compromise between the capabilities of the acoustics and the available space in the car.
