13mwolson Posted November 27, 2011 Author Report Share Posted November 27, 2011 That is the net volume with port and sub displacement accounted for. Gives you 5.4cu ft at 33 hz Wow thanks alot! I have 1 more question. Since the port is 20in wide and the box is 30 in wide does that mean the port isn't necessarily a slot port but more of a rectangle that flows back and connects to the back Link to comment Share on other sites More sharing options...
OrionStang Posted November 27, 2011 Report Share Posted November 27, 2011 Its still a slot, it just doesn't go all the way across the box. SMD Super Seller My Feedback Thread Link to comment Share on other sites More sharing options...
13mwolson Posted November 28, 2011 Author Report Share Posted November 28, 2011 Its still a slot, it just doesn't go all the way across the box. Ooo. So let me get this straight. 20 inches wide, 5 inches up on each side (for port height) and goes all the way back until there's 5 inches left from the back and then make it go up until I finish the 35 inches of port depth? Link to comment Share on other sites More sharing options...
OrionStang Posted November 28, 2011 Report Share Posted November 28, 2011 yes SMD Super Seller My Feedback Thread Link to comment Share on other sites More sharing options...
13mwolson Posted November 28, 2011 Author Report Share Posted November 28, 2011 What calculator were you using for these? Link to comment Share on other sites More sharing options...
13mwolson Posted December 1, 2011 Author Report Share Posted December 1, 2011 Won't 18 sq in per cuft make alot of port noise? Link to comment Share on other sites More sharing options...
zxsonnyxz Posted December 1, 2011 Report Share Posted December 1, 2011 Probably just his head, but when you have some info on boxsize, portsize and a tuning range Torres' Box Tuning Calculator is a helpfull tool. And close to 100 In2 is quite big so port noise shouldn't be an issue. I've made a box similar to this for a Digital Designs 2515, around 5.5 cubes tuned to 32hz but "only" about 78 in2. It's not been powered properly yet but no port noise, and the opening isn't rounded at all. STD Passat Build 151db+STD Omega BuildMitsubishi Colt Build - Alpine|Focal|PeerlessHome Stereo BuildSmall Tang Band build - 4" fullrangeBox for 4 8"My Saab 9000 Build- I'd be very happy if you cared to check out the logs and give feedback! Link to comment Share on other sites More sharing options...
13mwolson Posted December 1, 2011 Author Report Share Posted December 1, 2011 Probably just his head, but when you have some info on boxsize, portsize and a tuning range Torres' Box Tuning Calculator is a helpfull tool. And close to 100 In2 is quite big so port noise shouldn't be an issue. I've made a box similar to this for a Digital Designs 2515, around 5.5 cubes tuned to 32hz but "only" about 78 in2. It's not been powered properly yet but no port noise, and the opening isn't rounded at all. I thought big ports make port noise. So I was thinking.of doing 5.5 cuft with 16sq in of port per cuft and tuned to 32. Would that be good? or should I go with 18 sq in per cuft Link to comment Share on other sites More sharing options...
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