It has a great effect on the bass and can increase the potential of the bass.
It is suitable for use in a closed cabinet to enhance the bass performance of the speaker.
It can be used directly on the box to open a hole and put it on (provided the phase hole must be canceled)
The low-frequency dive depth is equivalent to the reverse type, but the speed is obviously faster than the backward type, which has the advantage of a certain closed box. At the same time, it completely eliminates the disadvantage of the inverted structu
For those who like to dive deep, but have higher requirements for bass speed, it is better to use a radiation basin to make a subwoofer.