Answer : Many people, due to visual subjective factors, think that when the subwoofer is piled up high, it will be able to transmit the sound farther.
In fact, this view is incorrect, because the lower the frequency, the smaller the directivity, so when the frequency of the woofer is lower, the energy surrounding it is greater, and the energy of the speaker box itself will increase.
Especially when the energy behind the woofer is not needed by us, it often becomes stage Technical problem.
No matter how we arrange these woofers, the energy won't change because of the different positions of the arrangement, but according to how many subwoofer we use.
If you don't want the bass energy to affect the stage too much, don't stack them up; If you want to point forward at low frequencies with high ability, line up with no spacing.