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View Full Version : Need help with a box design for 2 IA DP's 12s in a 02 ACCORD



Sk8n6s
02-10-2013, 08:14 PM
I Need help with a design for 2 ia dp 12s powered by a crescendo bc3500.1. I have about 5-6 cubes to play with and wanna tune around 32-34 hz. Could anyone help? Should I seal it off and fire into the cabin, or fire subs up port to trunk???

mklett33
02-13-2013, 01:36 PM
I see this is your first post, welcome to the forum, my suggestion would be to read up here first:

http://www.caraudio.com/forums/enclosure-design-construction-help/560833-about-make-thread-about-box-design-read-first.html

Sk8n6s
02-15-2013, 08:18 AM
Thanks man, I read it. Which way would you fire the subs? Options below
Subs up port back

Subs back port back

4th order it and seal it off into the cabin???

NASTY08IMPALA
02-15-2013, 08:29 AM
Thanks man, I read it. Which way would you fire the subs? Options below
Subs up port back

Subs back port back

4th order it and seal it off into the cabin???
what are you trying.to achieve? spl ? loud daily ? low pounder?

---------- Post added at 08:29 AM ---------- Previous post was at 08:28 AM ----------

drop the idea of.subs up btw

Sk8n6s
02-15-2013, 08:56 AM
Loud daily but can get low as well. My subs are firing up now with the port back. I had 2 T3s with psi recones in that box and it did a 145.2 on the TL. I changed to the dp's and they don't perform as well in the same box. I have a few vids on YouTube with the old setup.

NASTY08IMPALA
02-15-2013, 09:01 AM
well sealed forward is loudest in some trunks not so much in others ..vehicle dependant ..i dobt like the sound of that daily...ive always had good luck with subs amd port back ..but im switching to subs forward port side firing drivers side

NASTY08IMPALA
02-15-2013, 09:02 AM
are you running that bc3500 @.5 or 2 ohms and wat were u running.on the t3.s

Sk8n6s
02-15-2013, 09:10 AM
I'm running it at .5 and I had a Orion hcca 5000d (grey with emblem that lights up red) then I moved up to bc3500. I ran them both at .5 daily with no problem. Look up Honda Accord on 26s on YouTube, you should see my car and my YouTube name is Sk8n6s.

NASTY08IMPALA
02-15-2013, 09:16 AM
idk what the width of ur trunk is but might be difficult to fire subs and port forward..u can try n see how u like it sealed and if u dont like it u can flip the box ..or u could try subs forward port side

Sk8n6s
02-15-2013, 09:23 AM
My max dimensions 36x15x25

NASTY08IMPALA
02-15-2013, 09:26 AM
yea u got room to fire forward ...give it a shot if u dont like it flip the box

NASTY08IMPALA
02-15-2013, 09:30 AM
make sure u seal it off good or it will sound like azz

vetkilr
02-15-2013, 09:44 AM
Subs forward, port facing the drivers side...6" aero. Will get loud, but will have to have seat down most of the time to get loud. If you drive with seats up, subs/port back. Or like I have in my Malibu, 4th order ported through the rear deck.

IonRL205
02-15-2013, 09:46 AM
First thing you should take those enormous rims off your car. An accord is a family vehicle, not a **** donk

You give all honda owners a bad name

NASTY08IMPALA
02-15-2013, 09:51 AM
Subs forward, port facing the drivers side...6" aero. Will get loud, but will have to have seat down most of the time to get loud. If you drive with seats up, subs/port back. Or like I have in my Malibu, 4th order ported through the rear deck.

yea thats exatcly what im doing subs forward port drivers side ..except im doing slot port with port reducer to adjust tuning..should be fun

Sk8n6s
02-15-2013, 09:58 AM
First thing you should take those enormous rims off your car. An accord is a family vehicle, not a **** donk

You give all honda owners a bad name

First of all a DONK is a caprice/impala between the years of 71-73, so you're right it's not a DONK. Second off, I'm asking for help on a sub box, i didnt ask for criticism on the looks of my car. Last but not least, everyone has their own style n taste, obviously we don't share that interest as you can see. Your help would truly be appreciated if we stay on subject.

@vetkilr Hondas have that lock on the back deck but I do have the center console that folds down, could I fire the port through there???

vetkilr
02-15-2013, 11:59 AM
First of all a DONK is a caprice/impala between the years of 71-73, so you're right it's not a DONK. Second off, I'm asking for help on a sub box, i didnt ask for criticism on the looks of my car. Last but not least, everyone has their own style n taste, obviously we don't share that interest as you can see. Your help would truly be appreciated if we stay on subject.

@vetkilr Hondas have that lock on the back deck but I do have the center console that folds down, could I fire the port through there???

For a 4th order yes...needs to be 50-60 square inches for two 12's.

Sk8n6s
02-15-2013, 03:26 PM
@vetkilr what would I tune it to? I listen to mostly rap and r&b. this car is daily driver.

NASTY08IMPALA
02-15-2013, 03:33 PM
32-34 and if u wana move air ur gona need alota port..i got 16in^2 per cube and an adding more on next box

NASTY08IMPALA
02-15-2013, 03:35 PM
For a 4th order yes...needs to be 50-60 square inches for two 12's.

depending on box size 50-60 inches of port isnt much

Sk8n6s
02-15-2013, 08:05 PM
So if I go 4th order, 50-60 sq. in. In port and tune it between 32-34 hz???

NASTY08IMPALA
02-15-2013, 08:19 PM
So if I go 4th order, 50-60 sq. in. In port and tune it between 32-34 hz???

idk about 4th order if it differs from regular slot port as far as port area but im doin 80 inches in my new box for daily and a removable port reducer to gimme around 100 for metereing so 50-60 sounds low to me ..also tuning on 4th orders is different..better make sure u can even fit a 4 th order in ur trunk .i know i cant amd i have a rather large trunk..unless u build it in the trunk

vetkilr
02-15-2013, 08:35 PM
So if I go 4th order, 50-60 sq. in. In port and tune it between 32-34 hz???

Tuned to 43-48hz... 1 sealed each, 2.25 ported section tuned to 45hz.

NASTY08IMPALA
02-15-2013, 08:45 PM
Tuned to 43-48hz... 1 sealed each, 2.25 ported section tuned to 45hz.

highly doubt he has enough for for a 6.5 cube box to drop right in ...and do 4th order tuning always need to be that high?? im not sure ..he said he wants it to play real low

NASTY08IMPALA
02-15-2013, 08:45 PM
dbl post

vetkilr
02-15-2013, 09:06 PM
highly doubt he has enough for for a 6.5 cube box to drop right in ...and do 4th order tuning always need to be that high?? im not sure ..he said he wants it to play real low

4.25 cubed box after displacement...around 5 cubes total. Tuned to 45 it will have a nice bump around 32-35hz and play down to around mid 20's strong. It is what I have in my car, it is a low killer.

NASTY08IMPALA
02-15-2013, 09:08 PM
4.25 cubed box after displacement...around 5 cubes total. Tuned to 45 it will have a nice bump around 32-35hz and play down to around mid 20's strong. It is what I have in my car, it is a low killer.

ahh 2.25 total ported ..i always wondered about tuning on those ..5 cubes will still be a squeeze in there i kno it was in mine

Sk8n6s
02-16-2013, 10:40 AM
I heard a Tahoe yesterday 10 subs (out of 12 in right now) he's 4th ordered his truck and it was tuned to 46 hz and as the notes got lower, the bass and air came harder!!! Lol

gramser57
02-18-2013, 12:52 PM
My buddy has the same car as you and the loudest setup is sub firing forward, port firing into the passenger side, also tested with port/sub rear and sub up port firing driver side.

Sk8n6s
03-10-2013, 11:22 PM
My buddy has the same car as you and the loudest setup is sub firing forward, port firing into the passenger side, also tested with port/sub rear and sub up port firing driver side.

How did it do on low notes???

gramser57
03-11-2013, 12:07 AM
Ridiculous on lows, specs are 5 cubes net single 6" aeroport, 27hz port tune.