Crossover frequency
The frequency of the crossover provided in the speaker design.
The crossover is installed exclusively in the model with several stripes (see "Number of stripes"). This is an electronic filter that separates the incoming audio signal into separate frequency bands and directs each band to its "own" set of speakers. And the crossover frequency shows where the border between these ranges passes. If there are more than two bands, then there will be several similar boundaries: for example, for a four-band system, “0.15 / 0.8 / 2.8 kHz” or “0.12 / 1 / 3.8” may be indicated.
In most cases, this parameter is mainly of reference value: the built-in crossover frequencies are selected according to the performance of the speakers installed in the speaker.
Maximum amplifier power
The highest power rating of an amplifier that the loudspeakers can handle safely. Too much input power can damage the speakers, so when connecting, make sure that the amplifier's characteristics do not exceed the capabilities of the speakers. It is worth noting that this parameter may be slightly higher than the total nominal power of the acoustics (see below), since in this case we are only talking about the safety of the equipment, and not about the absence of distortion in the sound.
Overall frequency range
The total frequency range that the speaker is capable of reproducing. Specified from the bottom of the range in the lowest frequency component to the top of the range in the highest frequency: for example, in a 2.1 system with main speakers at 100 – 22000 Hz and a subwoofer at 20 – 150 Hz, the total value will be 20 – 22000 Hz.
The wider the frequency range — the fuller the reproduced sound, the lower the likelihood that some part of the low or high frequencies will be "cut off". It is worth noting here that the human ear perceives frequencies on average from 16 Hz to 22 kHz, and from a practical point of view, it makes no sense to provide a wider frequency range in speakers. However, quite a few models go beyond this range, sometimes quite significantly (for example, there are speakers with a range of about 10 – 50,000 Hz). Such characteristics are a kind of "side effect" of high-end acoustics, and they are usually given for advertising purposes.
Thus, the lower limit of the range in modern speakers can be within frequencies
up to 20 Hz, however, higher values \u200b\u200bare more common —
30 – 40 Hz,
40 – 50 Hz, or even
more than 70 Hz. In turn, the upper limit in most modern speakers lies in the range
19 – 22 kHz, although there are deviations both upwards (see above) and
downwards.
Woofer size (LF/MF)
The diameter of the woofer or combined woofer/midrange speaker(s). The larger the speaker, the lower its operating frequencies and the more sound power it can provide. Therefore, you should pay special attention to this parameter if you want to get high-quality rich bass - especially if we are talking about an audio system without a subwoofer. More detailed information about speaker sizes can be found in special sources.
Weight
The total weight of all components of the speaker system.
