Quote:
|
Originally Posted by low_bass_makker how did u calculated the length of the ports In one of the pics the length of the port is very small only one of the three pcs is used why? |
Hertz Air Mille range subwoofers are designed to use only in ported or IB / Free Air install. They are dual spider design with HE surrounds. They are the most accurate and fast subwoofers I have come across.
The port length gets shorter if you have a bigger box. In this case its a 4.25 cuft box. We are using two ports so each port length gets shorter. Because of stiffer suspension offered by dual spiders you don't need much of air resistance in the box, hence shorter ports reults in faster bass.