moving tons of air

[Alexwaves 10+ year member]

hey all i want to build a nother box but i want to move a ton of air and make some flexing videos. and maybe the hair trick..

i know that to do this i will have to tune low. i am going with 32hz. but my quesiton is with my slot port should i make it narrow or wide??

the box that i am gonna build will be 14"tall so the max that i can go for hight of the port is 12.5 but should i make it 2.5" wide and not that long or 10" and very long.??????????????

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[KnOkIn It 420 10+ year member]

//content.invisioncic.com/y282845/emoticons/wallbash.gif.1310150c49dd52e0fbe1813a0681e5c3.gif

 

[azbass 5,000+ posts]

dude give back your mecp certs and take down your sig. please.

 

[Worlddre 5,000+ posts]

in his defense there (at least when i took the test) there were no enclosure design questions on the mecp tests

kinda dumb nonetheless though //content.invisioncic.com/y282845/emoticons/hitbybrick.gif.68a672fae224041f00769a97c2c1bf2d.gif

 

[NeverEnuffBass 10+ year member]

in his defense there (at least when i took the test) there were no enclosure design questions on the mecp tests
kinda dumb nonetheless though //content.invisioncic.com/y282845/emoticons/hitbybrick.gif.68a672fae224041f00769a97c2c1bf2d.gif

MECP believes enclosure design is for intermediate installers

 

[80INCHES 5,000+ posts]

MECP believes enclosure design is for intermediate installers

i agree..and he's mecp certified:thumbsup:

congrats bj

80

 

[AK SloPok 10+ year member]

Tune higher and go narrow. The port is nothing more than a way to "slow" the reaction of the air so it is consistant and performing the same function of the cone of the speaker. Thus, a large mouth port would need to be longer. I don't see why this would be desirable unless you wanted more port area overall.

 

[NeverEnuffBass 10+ year member]

Alexwaves, what score did you get on your MECP if you don't mind me asking?

 

[twisztdauthorit 10+ year member]

this is what you need....

big box

big port

lots of surface area/excursion

/end

 

[Alexwaves 10+ year member]

box building was not some thing that mobile dynamics covered. the only thing that we did was a small box that held a 6.5 mid that was ported and tuned to 257hz the box was to show us to use wood glue and drywall screws and how to carpet a box. and how to take a router to round over the port. (pvc pipe)

on bronze it was 92.7 and silver was 87.6

i am sorry that i dont know as much as the avg person on this site. but i feel that this site is here for everyone not just the noobs or the 15 year pro installer. that is why i asked questions. so one day i will know as much as the next guy and help out the new ppl getting in to car audio.

 

[azbass 5,000+ posts]

I build boxes at Mobile Dynamics. also used and learned about box programs. I dont know about you but that helped me with building good enclosures that would do that I wanted, and not have to ask a forum how to make my car flex //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

 

[NeverEnuffBass 10+ year member]

They covered sealed boxes at RITOP but not Ported or Bandpass

 

[Worlddre 5,000+ posts]

mobile dynamics covered most the design process of the majority of enclosure types while i was there....we only that same enclosure as well yet i still managed to grasp box design as well

no excuses

 

[jellyfish420 10+ year member]

actually you want your port to be as close to a 'circle' as possible...laminate air flow, i believe is what its called. really makes a differance...

 

[jellyfish420 10+ year member]

opps, double post.