trjohnst Posted May 28, 2011 Report Share Posted May 28, 2011 So I am finally getting around to building my box for my HDC3 15" and will be running either a Crescendo BC2000 or AQ2200D. I need to figure out how to make my box using Torres' calculator. I will be using 3/4 hardwood plywood and need to know how wide and long my port should be. I am just doing a slotted port, on the side of the box. Its in the trunk, and the height can only be like 16.5 inches (which was what my last box was and it was great), and im thinking around 20 inches deep, and 32inches wide. I have no idea how much port area this thing needs or what the ratio needs to be, or even how much cubic feet this sub needs. If someone can send me a file of their Torre's tuning calculator for their HDC3 15" or have any suggestions that would be great. If the box was 20" deep, how far should my slotted port wall be, like 16"? How wide of a wall? Please and thank you all! 1991 Accord Audioque HDC3 15" (Copper)<--Sub Audioque HDC3 15" (Copper)<--Backup Sub Crescendo BC2000D<--Amp Big 3 1/0 Knu<--Wiring Eonon 3.5" DVD<--Headunit Infinity Kappa Perfect<--Mids & Highs 2nd Stock 80Amp alt. 1991 Mustang 5.0 Too many mods (Sold) 1991 240sx SR20 Red Top Too many mods (Sold) 2004 GTO Just starting mods Link to comment Share on other sites More sharing options...
Alex K Posted May 28, 2011 Report Share Posted May 28, 2011 4 cubes tuned to 32 hz. 2006 Nissan Z Track. My Feedback Thread i used to think a band pass was something you were around your neck or something. Link to comment Share on other sites More sharing options...
icewall Posted May 28, 2011 Report Share Posted May 28, 2011 if you made the box around 4 - 4.5 cubic feet then you could make the port 4" wide. these subs like 4-5 cubic feet and should have around 16 sq inches of port per cubic feet. port length will depend on what you want to tune it to. normal (high 30's) = 18-20 inches deep 24-28 inches deep for low tuning Link to comment Share on other sites More sharing options...
mlstrass Posted May 28, 2011 Report Share Posted May 28, 2011 I'd do 4.25^3 net off the power you have, but if you will mostly play low stuff then do 4.5^3. 35Hz tuning for the lows or 38Hz for all around is what I normally do. I've built several single 15" AQ/DD boxes and should have plans for them if you want to PM me... Link to comment Share on other sites More sharing options...
trjohnst Posted May 29, 2011 Author Report Share Posted May 29, 2011 Ok, so since optimal net volume needs to be 4.25^3, I tried to do the best I came and came up with this box. Except my tune is a little too high (I think). I dont really listen to real low stuff, just regular hard hitting punchy rap. So, I dont think I need anything in the low 30's, I think I need it in the high 30's, but this is the best I could do, a 41Hz box. I am TRYING to make a box like THIS, with 1 Sub. so I THINK I did the calculator right, by putting in 3 walls. So here is my saved calculator measurements with Torres' calc. It will save as a text file, then open the text with the Torres calculator. Open the calc. then file-open-BOX.txt http://www.mediafire.com/?aljbhao6yx5lcb5 PLEASE help me figure out if this is right! 1991 Accord Audioque HDC3 15" (Copper)<--Sub Audioque HDC3 15" (Copper)<--Backup Sub Crescendo BC2000D<--Amp Big 3 1/0 Knu<--Wiring Eonon 3.5" DVD<--Headunit Infinity Kappa Perfect<--Mids & Highs 2nd Stock 80Amp alt. 1991 Mustang 5.0 Too many mods (Sold) 1991 240sx SR20 Red Top Too many mods (Sold) 2004 GTO Just starting mods Link to comment Share on other sites More sharing options...
mlstrass Posted May 29, 2011 Report Share Posted May 29, 2011 if doing 16^2 of port area the port should be 18" long to tune around 38Hz which should work well for what you listen to... Link to comment Share on other sites More sharing options...
trjohnst Posted May 29, 2011 Author Report Share Posted May 29, 2011 I cant though because my box can only be 22" deep, so the max I can do is a port length of 16", which is 42 hz 1991 Accord Audioque HDC3 15" (Copper)<--Sub Audioque HDC3 15" (Copper)<--Backup Sub Crescendo BC2000D<--Amp Big 3 1/0 Knu<--Wiring Eonon 3.5" DVD<--Headunit Infinity Kappa Perfect<--Mids & Highs 2nd Stock 80Amp alt. 1991 Mustang 5.0 Too many mods (Sold) 1991 240sx SR20 Red Top Too many mods (Sold) 2004 GTO Just starting mods Link to comment Share on other sites More sharing options...
k3n12ock Posted May 29, 2011 Report Share Posted May 29, 2011 I cant though because my box can only be 22" deep, so the max I can do is a port length of 16", which is 42 hz That's where the L port bend comes jn 05 xB - (2) EVIL 18s - (2) BC3500s - NO WALL Channel 1: http://www.youtube.com/k3n12ock Channel 2: http://www.youtube.com/MrK3n12ock2 Link to comment Share on other sites More sharing options...
mlstrass Posted May 29, 2011 Report Share Posted May 29, 2011 I cant though because my box can only be 22" deep, so the max I can do is a port length of 16", which is 42 hz That's where the L port bend comes jn x2 you do an "L" at the back and keep it the same width. Measure from the middle of the port for your total length... Link to comment Share on other sites More sharing options...
trjohnst Posted May 29, 2011 Author Report Share Posted May 29, 2011 So if its 4" wide for my port, and my depth of the box is 22", i need to make my port go 18"long, then do a L, so that the distance between the inside of the L and the back of the box is 4"? 1991 Accord Audioque HDC3 15" (Copper)<--Sub Audioque HDC3 15" (Copper)<--Backup Sub Crescendo BC2000D<--Amp Big 3 1/0 Knu<--Wiring Eonon 3.5" DVD<--Headunit Infinity Kappa Perfect<--Mids & Highs 2nd Stock 80Amp alt. 1991 Mustang 5.0 Too many mods (Sold) 1991 240sx SR20 Red Top Too many mods (Sold) 2004 GTO Just starting mods Link to comment Share on other sites More sharing options...
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