racin69z
Junior Member
I am building a downfire box for a single 10 for my side by side. I am down firing to keep it out of the elements and try to lessen the chance of damage from random flying objects I may encounter on the trail. I cut three 2.5" windows in the box for the sound to exit out of. I can make it into a slot if need be, but I was hoping this would work and help keep stuff out of the sub. The sub will have 600w RMS going to it. Is there any type of rule of thumb or formula for the area needed for such a thing?