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View Full Version : making box out of spec....bad?



Goldenknob
06-22-2006, 01:13 AM
I have 2 audiobahn 1200q's that I'm wanting to put into a ported box now that I've recently aquired a proper vehicle. the specs on the sub's say to tun the box to 37hz. at 2.5cf each sub. I think.. here is a link to the specs. http://www.audiobahn.com/Audiobahn06/images/tech/2004/boxParams/AW00Q_box_specs.pdf


I was thinking about using molesters box design 4@35 #2 http://img77.imageshack.us/my.php?image=4cubes35hz5425sqin2er.png

and then modifying it to make the port longer to tune to a lower freq. is this a bad idea?.. the reasoning for picking the box is that I don't want it to be over 17" tall 40" wide and 17" long. am I being stupid and is there a better solution?..

I'm starting to have withdraws from lack of bass....

any pointers?

thanks

Goldenknob
06-22-2006, 08:33 AM
bump?

psych0ticnemes1
06-22-2006, 08:35 AM
modifying a box is fine if you know what you are doing.... but the better idea would be to design your own

Goldenknob
06-22-2006, 08:40 AM
I would but I don't know the slighest thing about designing a box. that's why I was thinking of doing it this way

maldecido33
06-22-2006, 08:40 AM
yea, either design a new box yourself or get someone to design it for ya

maldecido33
06-22-2006, 08:41 AM
I would but I don't know the slighest thing about designing a box. that's why I was thinking of doing it this way

if you don't know how to design a box you can't just change port length randomnly; depending upon port area and how much you change it, it could drastically throw off your tuning

psych0ticnemes1
06-22-2006, 08:46 AM
I would but I don't know the slighest thing about designing a box. that's why I was thinking of doing it this way

i'll help you out... i need to know the driver displacement and your max dimensions... or dimensions that you want... like 40" wide and 16" high but whatever deep, etc.

Goldenknob
06-22-2006, 08:53 AM
i'll help you out... i need to know the driver displacement and your max dimensions... or dimensions that you want... like 40" wide and 16" high but whatever deep, etc.


thank you.. I posted a link in my original post with driver specs I was wanting to go for the everyday bass preformer ported specs. the box can't be more than 40" wide 17" high and 20" deep. I'm wanting it to fire back so I need some port room. against my back hatch.

what would be the best tuning? under 35hz?

psych0ticnemes1
06-22-2006, 08:54 AM
subs AND port firing back?

Goldenknob
06-22-2006, 08:58 AM
would that be best? is there a big difference?

psych0ticnemes1
06-22-2006, 08:59 AM
i was just asking, not sure what you wanted... what kind of vehicle?

Goldenknob
06-22-2006, 09:00 AM
a 93' jeep cherokee

psych0ticnemes1
06-22-2006, 09:01 AM
subs up port back is best for suvs, atleest IMO...

Goldenknob
06-22-2006, 09:04 AM
heh well you talked me into that.... sounds good. at that height the box should be just below the back seat so the subs themselves shouldn't be in direct line of sight.

psych0ticnemes1
06-22-2006, 09:06 AM
heh well you talked me into that.... sounds good. at that height the box should be just below the back seat so the subs themselves shouldn't be in direct line of sight.

if they are, throw a blanket on top... or double baffle the top so that they mount flush... i always keep my 12" covered... ppl are nosey

Goldenknob
06-22-2006, 09:09 AM
yea the double baffle is a very good idea

psych0ticnemes1
06-22-2006, 09:10 AM
not going to get 5 cubes... maybe 4.5

Goldenknob
06-22-2006, 09:12 AM
yea I figured.. should be alright though. I'll throw some polly in there.

Goldenknob
06-22-2006, 09:16 AM
well I'm off to work, thank you very much for your help and I'll be back in about 7 hours.

psych0ticnemes1
06-22-2006, 09:48 AM
alright, hit me up later, am at work so can't do much

Lakota
06-22-2006, 12:41 PM
subs up port back is best for suvs, atleest IMO...
I read a spl log that LloydL (I think that's his name) made, and with testing in a Cherokee, subs facing back worked best on the meter. Subs up hurt their score a lot

Goldenknob
06-22-2006, 04:48 PM
sweet thanks for the info lakota...

well just got back from car toys.. got a new HU nothing super fancy but alot better than what I had... Panasonic C5403U. the bluetooth is what sold me on this one :D