TLEJ Posted January 4, 2011 Report Share Posted January 4, 2011 I'm just like being stupid right now.. I can't think which way this goes: My subs call for 1.5 cubes per sub. (So I need 3 cubes for this box). Each sub has a .15 displacement. -I've got my box drawn up at 14x27x16 (HxWxD) -and my port at 8x2x12 (HxWxD) This gives my box a gross volume of 2.67, tuned to 33.91. Did I do that right? I can't think if I need my box to be at 3.30, or 2.70.. (Because of the .30 sub displacement..) Quote Link to comment Share on other sites More sharing options...
billy101 Posted January 4, 2011 Report Share Posted January 4, 2011 I'm pretty sure it would be 3.30 before displacement, because once you put the subs in, they will displace .30, leaving you with 3 cubes. Someone correct me if I'm wrong. Quote First System 2002 Impala LS 3.8L V6, 128,365k miles. Alternator: DC Power 190Amp H/O Alternator Headunit: Kenwood KDC-BT945U. Speakers: MBQuart 6.5" Comps, 6x9 3-way. Amplifer: Eclipse 3322 on front 6.5 components, and a Infinity Kappa One @ 2ohm- 800w Subwoofers: 2 REAudio SRX12D2 wired to 2 ohm. Box: 3.1cuft box tuned to 33hz. sealed off to cabin Big 3- done with all Knukonceptz KCA 0 gauge. Don't drop below 14.1v at full tilt. Link to comment Share on other sites More sharing options...
iKidwell Posted January 4, 2011 Report Share Posted January 4, 2011 3.3, and it's not gross volume buddy, go by net vol. Quote c'mon now, if i was shooting an 8 year old, it wouldnt be MY 8 year old. i recently got a Pyle PL1590BL and i was building an enclosure for it tuned to 25 hz. i didn't have any tools to cut a circle so i hit it with a big hammer. 2003 Infiniti G35 Sport Sedan Build in Progress Link to comment Share on other sites More sharing options...
TLEJ Posted January 4, 2011 Author Report Share Posted January 4, 2011 (edited) I'm also thinking that.. so my new designs would be: 14x32x16.5 port: 10x2x12 Giving me 3.31 cubes, tuned to 33.55. Also, is having the port in the middle of the two subs a good idea? With the port facing towards me.. (It's going in my trunk with the back seats down.) Not sure which way to face subs with a ported box.. This will basically be 'walled' because my dimensions are squeezing this right in the opening where the seats fold down. EDIT: Yea.. NET VOLUME, I'm glad this is going to be my first box that I can screw completely up on.. But I've got to learn this some way or another.. Got left over mdf, and two 12's on the way. SO: 15x32x16.5 port: 11x2x12 Gives me a net of 3.29 cubes, tuned to 33.69. HOW does that sound? Edited January 4, 2011 by TLEJ Quote Link to comment Share on other sites More sharing options...
iKidwell Posted January 4, 2011 Report Share Posted January 4, 2011 not sure yet, i'll play around with torres' calc if you give me your max dimensions so you dont have to screw up your first box and it will sound decent though.. or if you want to do it yourself, make sure you have like 14" of port per cube, and for 2 12's(guessing they're 12's) do like 60 sq in of port or somewhere around there..and i personally like just 1 port at a side of the box, so you use less wood, and the common port walls drop the tuning a little bit, which i like. Quote c'mon now, if i was shooting an 8 year old, it wouldnt be MY 8 year old. i recently got a Pyle PL1590BL and i was building an enclosure for it tuned to 25 hz. i didn't have any tools to cut a circle so i hit it with a big hammer. 2003 Infiniti G35 Sport Sedan Build in Progress Link to comment Share on other sites More sharing options...
TLEJ Posted January 4, 2011 Author Report Share Posted January 4, 2011 Well I'll just give you this: my max is 18x33x28 (HxWxD).. I kinda wanted it tuned around to 33-34.. I want this to be loud and rattly. It is 2 12"s, Suggested Ported each: 1.5³ ft Displacement each: 0.15³ ft Quote Link to comment Share on other sites More sharing options...
iKidwell Posted January 4, 2011 Report Share Posted January 4, 2011 you want it to be rattly?? never heard that before, they make dampening to stop that. Quote c'mon now, if i was shooting an 8 year old, it wouldnt be MY 8 year old. i recently got a Pyle PL1590BL and i was building an enclosure for it tuned to 25 hz. i didn't have any tools to cut a circle so i hit it with a big hammer. 2003 Infiniti G35 Sport Sedan Build in Progress Link to comment Share on other sites More sharing options...
Guest Posted January 4, 2011 Report Share Posted January 4, 2011 you WANT it to rattle? ......... Quote Link to comment Share on other sites More sharing options...
Decaf Posted January 4, 2011 Report Share Posted January 4, 2011 download torres's box calc and theres a spot for sub displacement so u dont have to make a thread like this lol Quote Link to comment Share on other sites More sharing options...
TLEJ Posted January 4, 2011 Author Report Share Posted January 4, 2011 (edited) I knew right when I put rattly, the wrong idea was going to come out.. I just want it loud. Scratch me saying raddly. (It was jokish) EDIT: Thanks Decaf, didn't notice that, hah. Edited January 4, 2011 by TLEJ Quote Link to comment Share on other sites More sharing options...
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