Posted January 15, 200916 yr I've got two of these but temporarily I want to see what one can do, I'll be running it off of 900wrms. Anyone want to design me a nice efficient box, tuned anywhere from 27-32 hz? Sub will have to be facing forward, aero ports preferred, 6" PVC pipe is what I'd like to use.Max dimensions (to keep it under window line) would be 54" length x 22" height x 15" depth. Edited January 15, 200916 yr by 5.4SPL
January 15, 200916 yr Efficient? Build it larger than recommended. Try out 9^3ft.Your one 6" port might be big enough to minimize port noise. For a 27hz tuning, cut the port to 7.22"
January 16, 200916 yr Author Efficient? Build it larger than recommended. Try out 9^3ft.Your one 6" port might be big enough to minimize port noise. For a 27hz tuning, cut the port to 7.22"Great thanks, How about two 6" ports?
January 16, 200916 yr Probably be better to go with 2 4" ports instead of 2 6".If you go with 2 4", use flared ports and cut them at 8.40" each.This will give you a 9^3ft box tuned at 27hz.
January 16, 200916 yr With 900 watts and a 9 cu ft enclosure two 4" ports isn't enough...I'd go with two 6" round ports.
January 16, 200916 yr Author Thanks for your help guys, 9 cu/ft is doable but I'd prefer a tad bit smaller, I'd like to know necessary (not flared, PVC) port lengths for these sizes:7 cu/ft @ 30 hz 8 cu/ft @ 30 hz
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