SPL & SQ / Fabrication

Hey everyone first off I'm new to the site so I would like to say hi. Now I have a 2006 impala and I have a fi bl 12 and I had a fully costom box build that is right at 2 cubic feet and is tuned at 33hz potted through the trunk deck. Now the sound is horrible so atomatically I think it's the box but my buddy has the same size box and same size port that was taken out of a mozda rx8 and it's just sitting in the bak of a Mazda b2200 and we put the sub in that box and it freakin pounds. We took his treo out and put in my box and it has good sound. So my question is why in the world does the fi not sound good? I have had it in boxes that load up in the truck and sound amazing…

I already have one box thats tuned down to 30hz but i am looking to build a second for competetions. I know higher hz are much easier to get loud on TL. I want to figure out the best hz to tune my box to so it will be as loud as possible. Is there a way to figure out what my cabins best tuned too.

Well a few questions here. Would you guys mount your amps to the back of your seats if you could? Why or why not? Second -- I tried mounting my small amp to the back of my seat but its at least 3/4 inch metal. We tried using a metal bit but it ended up wrecking it. Both my friend and I tried for a few minutes trying to trill one hole but couldn't get it to drill through.

I decided to finally sack up and start planning a blow through. I just can't find anything around the web that actually explains. I really want to use aero ports. Do you think, if I sent two aero ports through the bed, and into the cab, that would be sufficient? I'd like to cut the smallest holes possible. Although I said before that I sacked up, I'm still pretty scared about cutting up my relatively new truck =). So, anyone have personal experience, pictures, or even tutorials? Thanks OH. Before I forget, My goals are to sound good, but have a really nice side of spl on the side. Just a daily ground pounder that sounds good,. I'm still trying to decide on which subs, bu…

I wanted to paint my port chrome and layer it in plexi. What would provide me with the greatest reflectivity as far as spray paint goes? I looked into mirror finish film but it seems to be quite pricy. I wanted to spend around 50 dollars max for about 25 sq ft.

I am building a wall and still need to seal it off on the sides and wherever there is space in between the box and the car walls. Is there a cheaper more efficient method besides spray foam? I am asking this because I am going to need about 20 cans of spray foam, if not more. I have also heard that spray foam is hard to work with. If there is something that is about the same price but is easier to work with please let me know. Thanks!!!!

I recently found my Visonik 12" woofer and i decided to build a box for it. I have ~$120 for supplies so nothing elaborate. My plan is a little under 4cuft (before displacement) tuned at ~26hz. I would like to use aero ports. The woofer is rated at 250rms, but handled 400rms from my RF200.2 like a champ. I have ~140wrms of clean power to play with, from my HT amp (Samsung HT in a box, very nice system for $220, on sale) I am switching it out for the current woofer, the 8" that is currently in the corner. My parents always turn the sub level way down when they watch movies (frustrating lol) So its mostly for my chopped and screwed music, that i can't fit on my iPod shuffle…

I am looking for a box design for 3 audioque HDC3 10's my trunk specs H 16 in L 43 in W 36 in the mouth of my trunk is 44in looking for a 4.5 cuft box tuned to 36/37 hertz i don't know how much port area though,

hey guys, im having a hard time deciding on which box to build for my 18" nightshade. i will be using a hifonics brutus bxi1610d amplifier. i have a fairly small trunk but the sub will fit with a correctly sized box. i used the re calculator to come up with 2 different designs. i need your help to choose which would be best. here is the first one http://i903.photobucket.com/albums/ac235/thebiggmann12/2.png and the second one is here http://i903.photobucket.com/albums/ac235/thebiggmann12/Untitled.png the one with the port along the bottom would be port back sup up and the other one would be port up sub up. it will be going in a hatchback focus. if u need any more informati…

Id like to get a box done and have a few ideas. Its a silverado crew cab and need a box under the seat. Not sure if I want to go with 2 10s ported or 1 12 ported I wanted to talk to someone who could let me know which would work best. The sub Id like to go with is an RE SEX 10" or a RE SXX 12" or Fi BL 12"

So I have a 2007 silverado crew cab and want to put 1 12" Fi BL with all the upgrades and a sundown 1200d in there. My deminsions for what I have room for are 55"long x 15"deep x 4.5" tall at the back and 8" at the front of the seat to the floor. In the middle its 6.5" Im going to probably lift the seat about 1/2" as thats how much thread I have to work with and theres no seat raising brackets yet for my truck. Im looking to do the 12" in a downfire ported box Can someone tell me if this would work or not? My sub would be 6.5" deep and my depth of the box is Im thinking going to be right about that.

I've been looking at the usaci rules but all I can find is that it says modifications are trunk only so does this mean batteries and amps also have to be in the trunk or just the sub?

I posted under another topic but calculated the wrong numbers so here is the updated version. The other post topic is misleading so that is why i posted a second time. This should answer any questions of why i posted another topic. I apologize Admin. This link shows the design outline: http://s883.photobuc...re.jpg#comments Here are the numbers: Wedge Enclosure Width: 43" Height: 27" Top Depth: 8" Bottom Depth: 20" Total Volume: 7.885 cb.ft. Port (32Hz) Internal: 20.0"H X 4.0"W X 24"L External: 20.75"H X 4.75"W X 24"L Port Displacement: 1.3689 cu.ft. Woofer Displacement: 0.38 cu.ft. (2 Fi Q 15s) Bracing Displacement: 0.1255 cu.ft. Net Volume: 7.885 - 1.3689 - 0.38 - 0.12…

here we go Here you go. more to come Later

So I only have bought pre fabbed boxes... Yes I know I am a lame person. The boxes are probably not to spec. And the boxes I usually get are cheap and are usually sealed. So I have been doing a lot of research and I think that the next box I want to BUILD is going to be a ported box. I know this scares me because of how hard it is going to be but I think I can handle it... If not it is a learning process. I am getting a Icon 12 dual 2ohm sub. My uncle who lives here does flooring and has tools/experience with wood working and stuff. Also what he does have experience with is fiberglassing and also doing carbon fiber in the hull inside his jet ski to make it stronger. I …

I'm preparing a box that will hopefully be home to 2 15" Xcons that will be powered by a saz-3500. My goal is not to get the best spl numbers. I do listen to a lot of rap yet at the same time I enjoy some Lenka, Utada Hikaru, or miss Swift to give some examples. I think I would like to tune around 30 or 31hz. So far, I was planning separate chambers and double baffle. This will be going in a smaller SUV, probably subs up, ports back. I am doing all my calculations and sketches w/ pencil and paper, so I may be off alittle due to rounding or way off due to poor math skills. Max available space is 26L*37W*24H, after divider and sub dis I am thinking the box is 10.3ft^3. I fe…

So, I'm set out to make a ported box for one 12" SSA DCON. I looked at all the specs, and here is what I have come up with: Width - 30 in. Height - 14 in. Top - 12 in. Bottom - 16 in. Wood - 0.75 in. thick Square port width - 1.5 in. Square port interior length - 9 in. This puts my Interior volume at 2.311 ft^3, and the tuning frequency at 28.28 Hz. This is about the best I can do with dimensions that can be easily cut, and that will fit my Scion tC. Do you guys have any suggestions? This is my first box I will be building, and I know all about the supplies, I just need to learn more about the dimensions of box building, as well dealing with the ported vo…

Plan on running a pair of M1a's strapped @ 2 ohms for daily/bassrace, and @ 0.5 ohm for burps. Just under 3 cubic feet tuned @ 38hz 72.5 sq in. of port Does it look adequate?

Lets say you have a 6.0 cu.ft. box and you have woofer displacement of .38 cu.ft. Now you have a net volume of 5.62 cu.ft. before port displacement. How do you know how to calculate the port length if you dont know the exact box size since port displacement have to be considered. I know how to calculate port displacement but i am not sure about calulating port length with a changing box volume as the port size vary. Can someone help me understand how this is done please. I know to some of you this is a dumb question but am just looking for some help and wanting to understand how its done and not mess up any more designs. Looked through the forum but couldnt find the info …

Not so good with building these kind of boxes never seem to e the dims right. any ideas or designs that have actually worked. so lets here some ideas or formulas"

Well i'm talkin to a member on *** about buyin his 18" dc level 5 but first i got to make sure i can fit it decently in my trunk (wall is not an option and im not taking out the back seats). my trunk is 16-17" high depending on location and im looking to run a box this size (optimum size without going into a different shape from square/rectangle): 32" wide, 16" tall, 30" deep. should be ~ 7.795 cu. ft before and displacement. im lookin to have the box tuned to 31-33hz as i listen to mostly rap and techno. the sub specs according to DC site are: Mounting Depth = 10.5Mounting Hole Diameter = 16.75"Motor Width = 9.84"Weight = 80.5lbsVC Diameter = 3" Flat 8 layerSd = 1159…

I'm looking for someone whos got a TL anywhere in wisconsin or near illinois border.

What I planned on doing is glueing a layer of plexiglass over the top of painted mdf. I want it to dry clear so there will be no glue marks. Is there anything out there that can do this? I have looked and all I could find was plexi to plexi glue. Any finds would be greatly appreciated.

Okay so many designs and tunnings have been done at this point any new ideas will help!! Car freq: 50-51hz box tunned to 48hz 145.2db 8.2cbs boxtunned to 43hz 148.8 db 5.2cbs boxtunned to 38hz 147.1db 5.2 cbs boxtunned to 32hz 145.6db 5.4 cbs all boxes are vented box style subs firing up. box tunned to 38hz 3-3'' aeros 4.0 cubes 143.5db boxtunned to 45hz 3-3" aeros 4.0 cubes 139.0 db subs up ports back also tried firing to left side of car then right no change all recorded loses?????? any help will be great!!!!!!!!!!!!!!!!!!!! thanks,

I'm currently building an enclosure for 1 Fi BL, (15") and I was wondering, which box will better suit the sub, (both will be tuned to 32Hz). 4cuft 4.9cuft See signature for car and current setup info. Thanks