Audio-Concepts Posted March 26, 2012 Report Posted March 26, 2012 Hey guys, I am working on designing a new enclosure for a pair of 12's. Total displacement is .47 of the enclosure for subs and angles. The specs are 36" W x 20" D x 13.5" H I was thinking 2- 4"x 16" aeroports dead center in the enclosure. According to my math, tuning should be around 30hz. If someone could assist me in this that would be great as I dont have a computer so I cant use torres' box calculater as I am on mobile! Thanks guys Mike Quote Pioneer AVH480 Zapco ST5XII amplifier Stevens Audio 6.5" components (passive) Onyx Subwoofer Sky High OFC wiring
Joe X Posted March 26, 2012 Report Posted March 26, 2012 Yes but your port area per cube would be below 7. Quote
Audio-Concepts Posted March 26, 2012 Author Report Posted March 26, 2012 What would you recommend to adjust accordingly? The subs really only need 1.75 ported each. Quote Pioneer AVH480 Zapco ST5XII amplifier Stevens Audio 6.5" components (passive) Onyx Subwoofer Sky High OFC wiring
Joe X Posted March 27, 2012 Report Posted March 27, 2012 A single side mounted 6" aero and reducing the width of the box to 35 would leave you 3.5 cubic feet of net volume, 30.5 Hz of tuning and 8.1 square inches per cube of port area.which would be acceptable for low to medium power/excursion subs, but if you really have 0.47 cubes of subs/bracing displacement maybe those are high power subs, in that case 8.1 square inches per cube may be low if you want good efficiency. Quote
412 CVX Posted March 27, 2012 Report Posted March 27, 2012 You're taking advice from Joe X? Quote Just say no to Ground Pounder Customs. My temp system build log More box buildssome cars do over 170db with one sub, so clearly my two 12"s can do that in my car, with my knowledge too! look out bitches! I'm with captain stupid.
Audio-Concepts Posted March 27, 2012 Author Report Posted March 27, 2012 I am open to all opinions! A side mount port is not gonna work as its a trunk car and will be sealed off! So port/sub forward is most desireable! Also I like low tuning and good efficiency as I am looking for more SQL! Quote Pioneer AVH480 Zapco ST5XII amplifier Stevens Audio 6.5" components (passive) Onyx Subwoofer Sky High OFC wiring
412 CVX Posted March 27, 2012 Report Posted March 27, 2012 what are your mids crossed over at? Quote Just say no to Ground Pounder Customs. My temp system build log More box buildssome cars do over 170db with one sub, so clearly my two 12"s can do that in my car, with my knowledge too! look out bitches! I'm with captain stupid.
RAM_Designs Posted March 27, 2012 Report Posted March 27, 2012 What vehicle? Quote Ryan Miskin - owner of RAM Designs I have my PM's turned off, please email at <script data-cfhash='f9e31' type="text/javascript"> /* */</script> 2200+ designs since March 2011...
Robert8252 Posted March 27, 2012 Report Posted March 27, 2012 I've found sub port back is working better then forward just so you know. Inside of our cars is close to identical. Just damn trunk rattles. Only way I'd fire forward again is if I did subs behind the seats and port the rear deck. Quote 2013 F150 Crew Cab Old Build Log Feedback 2013 F150 Equipment - Some Awesome Stereo Sound Making Stuff
Audio-Concepts Posted March 27, 2012 Author Report Posted March 27, 2012 Vehicle is a 98 Mercury Sable! I normally drive with the rear seats down, so firing forward has been actually louder during my testing. My front stage is still a work in progress, running off the headunit right now! Plus working on a budget, I still havent deadened the car yet and dont plan to till prolly fall! The enclosure I have in there now, is a single sub setup, that is 13.5H x 18D x 26.5W with a 12" x 2.5 x 30" port tuned to 29hz. I was thinking running an aeroport to save on space so not to have as big of an enclosure! Quote Pioneer AVH480 Zapco ST5XII amplifier Stevens Audio 6.5" components (passive) Onyx Subwoofer Sky High OFC wiring
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