bbeljefe Posted January 11, 2014 Report Posted January 11, 2014 You don't need that much port area for that sub at that tuning, regardless of how large the box is. Not that it won't sound good but you run the risk of the sub unloading without some acoustical suspension. 25in² would be a good number for the port area. 20in² wouldn't really be too small either. Facebook: facebook.com/audioanarchyllc Instagram: audioanarchyllc Youtube: youtube.com/bbeljefe
ThatGuyWithAJetta Posted January 12, 2014 Author Report Posted January 12, 2014 so i got the port area to right around 25 but it doesn't seem right though here is what i got !999.5 Volkswagen Jetta 1 Planet Audio BIg Bang 15 Powerbass 1500,1
ThatGuyWithAJetta Posted January 26, 2014 Author Report Posted January 26, 2014 Bumpin this up, as soon as my tax refund is in im ordering one of these bishes so could really use the help on the design !999.5 Volkswagen Jetta 1 Planet Audio BIg Bang 15 Powerbass 1500,1
bbeljefe Posted January 26, 2014 Report Posted January 26, 2014 Start cuttin... Facebook: facebook.com/audioanarchyllc Instagram: audioanarchyllc Youtube: youtube.com/bbeljefe
Joe X Posted January 26, 2014 Report Posted January 26, 2014 Just a second take, subsonic to 30Hz, input power to 500W, clearance to hatch 3 3/8" :
ThatGuyWithAJetta Posted January 26, 2014 Author Report Posted January 26, 2014 i really like your design, plus i know i've seen you around helping others so if it looks good to you i'll probably go with that one only issue is can i go without the 45 because i am very limited on tools and i don have a way of making one !999.5 Volkswagen Jetta 1 Planet Audio BIg Bang 15 Powerbass 1500,1
Joe X Posted January 27, 2014 Report Posted January 27, 2014 You don't really need the 45 so no problem with leaving it out, the inner edges of a slot port should be sanded enough to take away their sharpness.
slowfkncar Posted January 28, 2014 Report Posted January 28, 2014 Ev1 15 - 34hz with 10 sq.inches of port per cube. 3.5 cubes net 500rms Ev2 15 - 32/34hz with 12 sq.inches of port per cube 3/4 cubes net. Ev2 has stiffer soft parts near identical to the SA line. You could run more port area and get louder,but you dont want to stretch the woofers mechanical ability if your doing over 3 cubes net. You could tune low like 32 as you mentioned. But i will say straight up at 34/35hz tuning it WILL be louder. Be sure to set the subsonic filter because at 13mm xmech 70%bl it wont be to hard to soft bottom with 40% more power
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