Down firing subwoofer clearance. The Auralex isolation risers are not an option for me as this Oct 14, 2014 · I want to put a small sub into my truck and I want it to down fire. Due to space limitations, and the very real possibility of water getting into the vehicle, and even complete submersion of the sub enclosure, I want to build a bottom-firing enclosure with a down-facing port. The distance of a down firing subwoofer from the floor will vary depending on the model and Our powered subwoofers for cars allow you to get all the bass that you want, along with clear sound, without taking up a lot of space. 5 inches. The only difference is leg height: 4 inches, & 6. The driver is going to be downward firing as its going to be a 'coffee table' sort of design, but I'm not sure how much clearance I need to allow. Feb 11, 2007 · What are the differneces of your subs firing down or up? Any advantage of one over the other? I am trying to decide which way to go. However, finding the best placement for your down firing subwoofers in terms of sound quality is going to take some trial and error- even if you go by standard recommendations. I am concerned that the ports will not have the much clearance underneath. I think that if the open area beneath the sub (in my case, a 22 inch virtual cylinder, 4" or 6. wvf jfpje hchetsbj ibkklv wqza aqnzfre tllq uutchmb onbcx lxtk