subwoofer is a common name or abbreviation of everyone

1, subwoofer is a common name or abbreviation of everyone, strictly speaking should be: heavy bass speaker.

2. Its role is mainly divided into two aspects:

(1) Tone

It depends mainly on the frequency, but also on the intensity of the sound.
The human ear responds to a high frequency sound with a high pitch and a low frequency sound with a low pitch.
The change of tone with frequency (Hz) is basically logarithmic. Different instruments play notes of the same frequency,
although the timbre is different, but their pitch is the same, that is, the fundamental frequency of the playing sound is the same.

(2) Timbre

When different instruments produce the same note, their timbre can be quite different.
This is because although their basic frequency is the same, but the harmonic components are very different. Therefore,
timbre not only depends on the fundamental frequency, but also closely related to harmonics that are integral multiples of the fundamental frequency,
which gives each instrument and each person a different timbre.

Functional function of subwoofer -- Dynamic:

The ratio of the strongest to the weakest sound, expressed in dB. For example, a band has a dynamic range of 90dB,
which means that the weakest part has 90dB less power than the loudest part.
Dynamic range is the ratio of power and is independent of the absolute level of sound. As mentioned earlier,
the dynamics of the human ear range from 0 to 130dB. The dynamic range of sounds in nature is also very variable.

The speech signal is only about 20 to 45dB, and some symphonies have a dynamic range of 30 to 130dB or more.
However, due to some factors, the dynamic range of the sound system rarely reaches the dynamic range of the band.
The inherent noise of the recording device determines the weakest tone possible to record,
while the maximum signal capacity of the system limits the strongest tone.

Set the dynamic range of sound signal as 100dB, the dynamic range of reason acoustics equipment can accomplish 100dB,
very good 1, subwoofer is a common name of everyone or abbreviation, speak strictly should be: heavy bass speaker.

2. Its role is mainly divided into two aspects:

(1) Tone

It depends mainly on the frequency, but also on the intensity of the sound. T
he human ear responds to a high frequency sound with a high pitch and a low frequency sound with a low pitch.
The change of tone with frequency (Hz) is basically logarithmic. Different instruments play notes of the same frequency,
although the timbre is different, but their pitch is the same, that is, the fundamental frequency of the playing sound is the same.

(2) Timbre

When different instruments produce the same note, their timbre can be quite different.
This is because although their basic frequency is the same, but the harmonic components are very different.
Therefore, timbre not only depends on the fundamental frequency,
but also closely related to harmonics that are integral multiples of the fundamental frequency,
which gives each instrument and each person a different timbre.

Functional function of subwoofer -- Dynamic:

The ratio of the strongest to the weakest sound, expressed in dB. For example, a band has a dynamic range of 90dB,
which means that the weakest part has 90dB less power than the loudest part.
Dynamic range is the ratio of power and is independent of the absolute level of sound. As mentioned earlier,
the dynamics of the human ear range from 0 to 130dB. The dynamic range of sounds in nature is also very variable.

The speech signal is only about 20 to 45dB, and some symphonies have a dynamic range of 30 to 130dB or more.
However, due to some factors, the dynamic range of the sound system rarely reaches the dynamic range of the band.
The inherent noise of the recording device determines the weakest tone possible to record,
while the maximum signal capacity of the system limits the strongest tone.

Set the dynamic range of sound signal as 100dB, so the dynamic range of sound equipment can do 100dB, it is very good