The boost makes the low frequency devices, such as bass-toms-kick, get louder.

*

100 hz:

*

Opening makes the devices with low frequencies heard rigid.

*

Opening up will make instruments like a more voluptuous guitar-snare.

*

Opening makes it possible to hear instruments like horn-piano active and moving.

*

By setting this frequency, a clear, crisp, voluminous guitar sound can be heard.

*

200 hz:

*

The opening will cause the voice of the lawyer to jump.

*

Opening makes the guitar-snare sound synchronized.

*

By adjusting this frequency, vocals and instruments of the mid-frequency are heard clear.

*

50 hz:

*

The boost makes the low frequency devices, such as bass-toms-kick, get louder.

*

100 hz:

*

Opening makes the devices with low frequencies heard rigid.

*

Opening up will make instruments like a more voluptuous guitar-snare.

*

Opening makes it possible to hear instruments like horn-piano active and moving.

*

By setting this frequency, a clear, crisp, voluminous guitar sound can be heard.

source