New box idea for the 2 18"s

[bamaboy 5,000+ posts]

box now is 12 cubes @ 34hz, its loud, just something isnt right, i believe its getting cancellation from the roof or something, im not really worried about metering now, but just mainly daily driving and getting low

now anything at around 37-38hz sounds like chit, i can hear the roof flexing over the bass, i threw my book bag on it one day and it helped a good bit, also it has 2 layers of second skin on some of the roof, and that helped a little

but box is now 12cubes at 34hz



i want to change to one of these and try it, but which one will do the best?

i dont know if i can get enough port area to put both on the front baffle, im gonna measure and check though

any input?

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[9512ds 5,000+ posts]

how much space is there from the port to the hatch?

 

[TheFiverMan 10+ year member]

why not 14cf tuned to 32hz?

 

[bamaboy 5,000+ posts]

well with the box in there, it sounds the best pushed back, but i cant fold the seats up with it back, but i dont care

ill measure some stuff, but its a good 8-10" probably

no way im fitting 14cubes...without going up

 

[casper97ta 10+ year member]

I wouldnt change the design. I would stay with CRX style but tune to 30hz. Guaranteed to be loud and low for daily.

 

[mobeious 10+ year member]

sup bama... i had 2 18's in my xplorer level with the back seats i cant remember my measure ments but if iirc they were 44wide on bottom and 47 on top .. each side kicked out there is a lil indintion in the panel that will allow it to do it... 20tall and like 34 deep and ALOT of port tuned at 36hz... box build is on termpro.com search loud *** explorer build... anyway here is my vid on ROA so u can see the box

http://realmofexcursion.com/videos/REAudio/mt18.5.wmv

 

[bamaboy 5,000+ posts]

yea i remember, thats one reason i tried this box, and it does great, just trying to figure out some ideas

i might try a chit ton more deadening, but i dont want it to hurt me...

 

[mobeious 10+ year member]

are u sure the subs are wired right i also tried a different designs with 2 15's with subs up port up and it worked pretty good too

 

[DarkFox 10+ year member]

I dont have any measurments so only assuming based on that litttle thumbnail pic, but I think the problem with the lows may be similar to what mobeious was saying about ALOT of port. The port looks a little small for 2 18" subs, but thats just looking at the thumbnail, it may be huge, i dont know.. lol

 

[Fred333 10+ year member]

I like the second design if we are choosing out of those.

 

[PwnMaster]

Try puttin teh subs over the port in teh back. It looks like there too far foward, and air is just going str8 out teh port.

 

[Goldtaz1 10+ year member]

Hatin on my box eh?? Tisk, tisk!! LOL!!

The box is 12 cubes net with 150 square inches of port. Box is 45" W x 19 1/4" T x 33 3/4" D.

Constructive criticisms are welcome.

 

[DBfan187 5,000+ posts]

2 6" aeros per sub.

 

[bamaboy 5,000+ posts]

big pic



port looks fine

maybe alot of imp rise?

i remember when getting the explorer and talking to loyd, he told me to do sub and port back, that with hsi testing was loudest in these models

dont get me wrong, its loud, just think i can get more out of it

 

[mobeious 10+ year member]

2 BTL 18's id try 7-7.25 per sub with around 160-200sq at around 34hz thats going to drop ur Fs of the encloser and big in the lows more