jgs07

no one? i just need help from someone who's built boxes before to help me decide between the first two designs. my bl has been sitting at home for FOUR MONTHS without being played!!!!!!!

posted some pics of the sub box, they are in my gallery under my username.

specs of my old box. 14.00" h 14.50" D 35.00" W Total inside volume BEFORE sub & port displacement = 3.15 cuft Port dimensions = 3" X 12.5" x 36 (L PORT) Port volume = 0.95 cuft Sub displacemnt = 0.15 0.95 + 0.15 = 1.1 cuft. 2.0 + 1.1 cuft = 3.1 (within .05 is close enough) tuned to 35hz my headunit has a high pass filter which is off my amp setting when i had this box in. sub sonic-32 hz low pass-80-90hz bass eq-0 gain- set by dmm

when my car is running my voltage is at a steady 14.4v, so it should have had the full 1600 watts going to the sub. how do you post pictures on here? i found a pic of my old box saved on my computer but i dont know how to post it on here.

it was somewhere around 2.5 cu ft tuned to 36hz. the thing about the box that i remember was that the backside of the L port was about 26-27 inches in length.i think that was the problem. in the end i wasn't pleased with the output, it moved very little air.

bl just didnt sound good, there was hardly any excursion and it wasnt loud at all. i think it was due to lack of port area.

i need help choosing between these two designs for my 12" BL. my last box didnt turn out so well. so i was hoping you guys can maybe help me out a bit. amp:hifonics bxi 1606d goal:spl first design: H:14.25" L:30.5" W:18.25" port width: 3" total port length: 29.75 square port area: 38.25 box volume:2.9 cu ft (before double baffle) tuned to:34hz second design: H:14.5" L:30.5" W:14.25" port width:2.5" total port length:31" square port area:32.5" box volume:2.18 cu ft (before double baffle) tuned to 36hz any input is appreciated, thanks.

i understand that but im still not satisfied with how loud it is for the amount of power im putting on it. have u seen anton millers vids? my bl is nowhere near that.

same amp as the cvrs. head unit:alpine cda 9884 settings: sub level (10/15) bass level (2/7) treble (4/7) hpf:120

how high do u have the volume at? I notice on certain songs at the same volume the bl is just not as loud as my old cvr's(2 12's) (400 rms each). With my cvrs i didnt have to turn up the volume that much before it started to get loud. For example take the song young jeezy-I AM A do me, with my cvr's when i put the volume at 15 it gets pretty loud to where the rearview moves out of place. On the bl i put the volume at 20 and it just doesnt get as loud as the cvrs and doesnt even move the rearview out of place. The bl should be louder or just as loud as my old cvr's right? I know this sounds kinda weird, eventhough the bl is an spl sub it kinda sounds like an sq sub in the box. anton, how long did it take for your sub to break in?

yeah i set the gain with a dmm. so from what u see there is nothing wrong with the box?

ssf:35hz low pass: 120 hz bass eq:0 phase:0 gain set correctly. amp:bxi 1606d

everything overall. i previously had 2 12" kicker cvrs and they get louder than the bl, both lows and highs. so im thinkin the i may have messed up on the box.im thinkin the L maybe too long(backside;meaning the part within the box) and it maybe choking the sub.

almost 2.05 at 35hz close enough though

thats before displacement after displacement is 2.05

hifonics bxi 1606d

ive had my bl 12"( just one) for about a week and its broken in but it doesnt get as loud as i want it too. so im thinkin i may have messed up on the box. can anyone take a look to c if i messed up on the box? dimension: 14.00" h 14.50" D 35.00" W Total inside volume BEFORE sub & port displacement = 3.15 cuft Port dimensions = 3" X 12.5" x 36 (L PORT) Port volume = 0.95 cuft Sub displacemnt = 0.15 0.95 + 0.15 = 1.1 cuft. 2.0 + 1.1 cuft = 3.1

You can. Double baffle just means make the wall the sub mounts on so it is 1.5" thick (2 pieces of 3/4" glued together). You can also build the box full size and corner fill to help air flow. Brian oh alright gotcha, thanks. btw how much smaller can i go?

if i just make the box smaller, can i avoid doubling up the baffle? (also im not sure what that means in reference to doubling up the baffle)

yeah my bad, i meant a port width of 3". having it this big, will it affect how the BL will sound? ?

im going to be buying a single 12" BL within the next week but i wanted to get started on building the box. its going to be powered by a hifonics bxi 1606d. i mostly listen to rap. i got these measurements set up. let me know what u guys think. as far as going bigger i really, cant limited by trunk space. its going in a 02 lancer. W: 36" H: 15.5" D: 15.5" Port Length: 3" total port length: 27" tuned at 32.8hz.