justin_garrett Posted April 29, 2012 Report Share Posted April 29, 2012 OK so i designed my box to be tuned at 33hz with 2 4in aero's at 20in long and it plays the higher notes with authority but not the low notes what im thinking is my tuning is off as the ports come out of the box 12in and the other 8in is in the box would that effect it any or would it still have the same tuning the subs im running are 2 dc lvl 2 12's they are brand new just got them yesterday and i went with dc's recommend box size from there site here are the box specs any help is appreciated Quote 1998 neon R.I.P 137.5 db's Youtube videos http://www.youtube.c...tingarrett64067 2000 Eclipse Headunit = pioneer avh-p1400dvd Subwoofers = 2 DC audio lvl 2 12's Amp= Vibe bass 5 1500rms @ 2ohms Single run of 0awg power and ground wire ( Big 3 wire upgrade comeing soon ) Link to comment Share on other sites More sharing options...
RooTxBeeR Posted April 29, 2012 Report Share Posted April 29, 2012 Yes it would, see the box titled external port length? Adjust the numbers so it represnts what your box is. Quote On 11/20/2012 at 8:54 PM, AMI CUSTOMS said: Turned mine up today at a light, guy next to me his steering wheel started moving and he looked over at me like I was a magician lol. On 5/9/2012 at 8:45 PM, skittlesRgood said: fuck the plating. look at what the main metal used is. you could buy unicorn blood plated terminals but if its just covering up dog shit, whats the point On 4/10/2013 at 12:26 PM, mrd6 said: I'll admit, half way through sanding that fiberglass in the rain and cold while I was all itchy I was definitely starting to question why i was doing this haha Soon To Be '04 Ford Escape US Alternator 280A Hairpin D4800 Under the Hood (6) XP3000's in Rear 1/0 SHCA & XS Power 4 runs to back TORK2 kit from Tony @ CE Auto Supply Pioneer DEH-80PRS DD AW6.5 (2) per door *Tweeter Unkown* DD SS4a & C3d (2) SCV4000 @ .5Ohm (2) 15" Sundown Zv5 Link to comment Share on other sites More sharing options...
donpablo Posted April 29, 2012 Report Share Posted April 29, 2012 I just built this for my lvl 3 12s and it hits harder then ever http://i15.photobucket.com/albums/a357/sskevinss/box5.png Quote 2015 F-150 Platnuim Link to comment Share on other sites More sharing options...
justin_garrett Posted April 29, 2012 Author Report Share Posted April 29, 2012 ok i must of over looked that box it brought it down to 32hz which is fine i like the lows but it don't hit them lows with authority could it be there still brand new and don't have even 30 min's playtime on them so there not broken in yet Quote 1998 neon R.I.P 137.5 db's Youtube videos http://www.youtube.c...tingarrett64067 2000 Eclipse Headunit = pioneer avh-p1400dvd Subwoofers = 2 DC audio lvl 2 12's Amp= Vibe bass 5 1500rms @ 2ohms Single run of 0awg power and ground wire ( Big 3 wire upgrade comeing soon ) Link to comment Share on other sites More sharing options...
justin_garrett Posted April 29, 2012 Author Report Share Posted April 29, 2012 I just built this for my lvl 3 12s and it hits harder then ever http://i15.photobuck...evinss/box5.png that box specs look prety good but you have lvl 3 and mine are lvl 2 Quote 1998 neon R.I.P 137.5 db's Youtube videos http://www.youtube.c...tingarrett64067 2000 Eclipse Headunit = pioneer avh-p1400dvd Subwoofers = 2 DC audio lvl 2 12's Amp= Vibe bass 5 1500rms @ 2ohms Single run of 0awg power and ground wire ( Big 3 wire upgrade comeing soon ) Link to comment Share on other sites More sharing options...
RooTxBeeR Posted April 29, 2012 Report Share Posted April 29, 2012 What is your port area per foot with the updates external port? For Aero ports the general rule is 10-12, if you want the lows try and get closer to the 12. Another thing like you said, since they are brand new, the suspension might be a bit stiff, making it hard to drive them. Quote On 11/20/2012 at 8:54 PM, AMI CUSTOMS said: Turned mine up today at a light, guy next to me his steering wheel started moving and he looked over at me like I was a magician lol. On 5/9/2012 at 8:45 PM, skittlesRgood said: fuck the plating. look at what the main metal used is. you could buy unicorn blood plated terminals but if its just covering up dog shit, whats the point On 4/10/2013 at 12:26 PM, mrd6 said: I'll admit, half way through sanding that fiberglass in the rain and cold while I was all itchy I was definitely starting to question why i was doing this haha Soon To Be '04 Ford Escape US Alternator 280A Hairpin D4800 Under the Hood (6) XP3000's in Rear 1/0 SHCA & XS Power 4 runs to back TORK2 kit from Tony @ CE Auto Supply Pioneer DEH-80PRS DD AW6.5 (2) per door *Tweeter Unkown* DD SS4a & C3d (2) SCV4000 @ .5Ohm (2) 15" Sundown Zv5 Link to comment Share on other sites More sharing options...
justin_garrett Posted April 29, 2012 Author Report Share Posted April 29, 2012 its close to 10 its at 9.55 but with my old subs the port per foot was only like 5 same style box just bigger cubes and it hit the lows great so i'm leaning towards that there still brand new Quote 1998 neon R.I.P 137.5 db's Youtube videos http://www.youtube.c...tingarrett64067 2000 Eclipse Headunit = pioneer avh-p1400dvd Subwoofers = 2 DC audio lvl 2 12's Amp= Vibe bass 5 1500rms @ 2ohms Single run of 0awg power and ground wire ( Big 3 wire upgrade comeing soon ) Link to comment Share on other sites More sharing options...
Tarball Posted April 29, 2012 Report Share Posted April 29, 2012 Isn't you net volume a bit small for bottom end on 2 12s? 2.43 on the original post Quote CURRENT SYSTEM: Alternator: Stock alt on mids/highs Isolated DC Power 270 SP - Charging @ 16.8v Batteries: (2) XS D1400s Power Cable: Double Runs of 1/0 KNU Kolossus Fleks Headunit: 80-PRS Sub Amp: DC 5.0k Subwoofers: 2 RE MT 15s /PSI dual .7ohm recones Subwoofer Enclosure: 9.1cubes @ 32hz - brutal. Mids & Highs Amp: CT125.4 Active Components: Mids RE XXX 6.5c Highs - 3 RE XXX tweeters per side(A pillar) Noise Control: Damplifier Pro all over the cab. Build Log If you do business with me please leave feedback here: FEEDBACK THREAD Highest Legal Score: 151.0 db Highest Musical 30 Second Average: 151.6 db Link to comment Share on other sites More sharing options...
Bmike Posted April 29, 2012 Report Share Posted April 29, 2012 the box size is about right on, but what do you have your subsonicfilter set to? Quote 2007 trailblazer lthead unit- pioneer p4300dvd crescendo ft-1 supertweeters pioneer m650 pros audiocontrol 2xs crossover Rockford fosgate p200-2 highsrockford fosgate p400-2 mids1- fi btl 18amps- saz 3500battery- evermax in front, 2 9a31 dekas in rearwires all knuconceptz 1/0 and rcas Link to comment Share on other sites More sharing options...
RooTxBeeR Posted April 29, 2012 Report Share Posted April 29, 2012 Port are per foot of 5?! and it slammed the lows? I don't know man, I have heard that come from people on here who do amazing work with stuff and I put a lot of confidience in their knowledge. 10-12 for aero ports, and 12-16 for slot port, and if you want better low end, build slightly bigger than recommended volume to. Quote On 11/20/2012 at 8:54 PM, AMI CUSTOMS said: Turned mine up today at a light, guy next to me his steering wheel started moving and he looked over at me like I was a magician lol. On 5/9/2012 at 8:45 PM, skittlesRgood said: fuck the plating. look at what the main metal used is. you could buy unicorn blood plated terminals but if its just covering up dog shit, whats the point On 4/10/2013 at 12:26 PM, mrd6 said: I'll admit, half way through sanding that fiberglass in the rain and cold while I was all itchy I was definitely starting to question why i was doing this haha Soon To Be '04 Ford Escape US Alternator 280A Hairpin D4800 Under the Hood (6) XP3000's in Rear 1/0 SHCA & XS Power 4 runs to back TORK2 kit from Tony @ CE Auto Supply Pioneer DEH-80PRS DD AW6.5 (2) per door *Tweeter Unkown* DD SS4a & C3d (2) SCV4000 @ .5Ohm (2) 15" Sundown Zv5 Link to comment Share on other sites More sharing options...
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