SPL & SQ / Fabrication

Not really sure where to post this but in my 30 yrs experience I've never seen anything like this and thought I'd share. I bought my 16 yr old daughter a beat down Toyota Avalon for her first car. It's got a junker JVC head works but the sound was extremely anemic. I popped the trunk thinking a cheap set of 6x9's would be a quick fix but these cars never had rear deck speakers. Well shit, I'm pullin door panels. That's when I saw them. ABS ported enclosures? Harmon made? The factory speakers were trashed, foam surrounds completely gone but I was intrigued. I grabbed a set of 4"ers, went to install and found out they're 4 1/2" holes. Cant really open the fronts up …

Getting ready to do a little sound deadening this weekend. This is going into an 07 Altima. Do I need to remove any factory deadener that is glued to the floorboard or any other place. I'm not talking about any jute carpet or material that can be easily removed with my hands. I know that some cars have factory carpet/rubber like padding on the floorboards, does this need to get removed or can I just deaden around it? Thanks. Thanks!!! :drink40:

I am going to start on this project very soon so I thought I'd start planning right now.. Here is what I wanted to do.. I did not want to sacrifice my whole cargo area so I got my sub box made to take up only half of the whole cargo space so I can have half of the space to store things or whatever.. And then I realized that I have no place to mount my kicker 2500.1 which is a fairly large amp so I decided that I would want to build a false floor with plexiglass on the other half of the cargo space in front of my subwoofer box.. (as of now my amp is sitting on my rear seat folded down (i definitely do not like it at all and I do not want to mount my amp on the sub box as …

So I want to build a false floor in the trunk of my Miata, to cover the amps that are sitting in the recessed well of the trunk. Never having done this before, and not too skilled at woodworking, how do I make a template design that conforms to the outlines of the trunk? I know they say to trace it out on cardboard, but how do you get the cardboard pressed up into all the nooks and corners of the trunk so the tracing is accurate, to trace out a line that shows the exact curve or square of the trunk floor? So the final wood floor basically press fits into the corners and walls of the trunk? My thought is to have a floor that covers the entire trunk, with the section cove…

FOR MORE INFO CLICK ON THE FLYER

What has been your favorite show you have attended, not necessarily competed in? I would say the best show (besides SBN) would be the first show at Ft. Drum, NY back in July of '00. It was a smaller IASCA show hosted by Terry Floyd. There were maybe 25 or so SPL cars and about 10 or so SQ cars. I met a lot of people at that show that wound up being good friends. Highlights from the show. I had the high SPL for the day at 151.0 I caught my car on fire! 2 of my other buddy;s got 1st in their respected SQ classes Here is a buddy's truck that won one of the pro classes. He went on to IASCA Finals that year. Real sweet truck.

I have a non wall box for a 21 warden going in a 2 door blazer, I have two boxes saved as a design right now. Both are about 8cu after all displacements and have 120-130sq in of port. The box is set up for sub up port back. My question is, would having the port on the side vertically facing the hatch make any much difference then if the port was on the bottom running length wise horizontally facing the hatch. I know each vehicle is diff and theres no telling whats better, but figured maybe the way the air moved would be diff or somthing. Thanks for any help

1 18" DC Level 5. Still waiting for some other bits to come in (amp/battery). But in the mean time, we want to go ahead and start on the box. We were thinking of these two options. 1) Sub up/ports up. Have sub in middle, with a port on each side of sub instead of a single port. Does anyone see any negatives to this besides using up more wood/cost more? etc... Basically would like to do it this way because OCD side is taking over, and we would like to keep it symmetrical. 2) Sub up/port back. This would just be sub up, with a single port along the bottom of the back of the enclosure. Pretty straight forward. Basically, just looking for yall's opinions. Which do you t…

Hey everyone. I was wondering if anyone could explain to me how the freq of a box affects the sound, like what a low freq is good for and how it sounds along with a higher freq? Also, when the inside corners/edges of the box are angled, will that give you better spl? And I was thinking of sanding the edges on the outside of the box to a curve to make them round instead of a straight edge...is that a bad idea? Thanks in advance, Jack3d **Any help is always appreciated

Does anyone know any online dealers that build fiberglass boxes anymore for a decent price? I emailed Fisher Audio but they no longer make FG ones. I would do it locally but they charge an arm and a leg for them.

I finished my fiberglass box yesterday for 1 15" icon yesterday, kinda anyway. Its a little on the small side at 1.8 cubes. I plan on adding some polyfill to bring it up to ssa's specs for 2-2.5 cubes. I just dont know how much to add, I have a 20 oz bag of polyfill at the house. Any advice?

I'm currently thinking about building a box for a 12 btl with both the sub and the port aimed into the cabin, sealing off the trunk from the cabin. I have looked at tons of boxes doing this but they all port on either the right or left side of the box. I often have 4 people in my car so this would mean the seats would have to remain up giving the port very little room to breath. My middle seat has an arm rest that comes down and my idea was to have the box port right there so that i can just put the arm rest down and give the port a place to breath. My question is can i port the box in the middle and place the sub to either the right or left of the port. I don't have a i…

i have two fi bl 15`s n i wanna build a box for them tuned to 32hz but i have no idea wat size the box needs to be ? the build is for my xterra

I'm having my enclosure built for an Fi BL 15 that I'm ordering. Im getting the enclosure 3.5 cubic feet. Ported of course. And tuning at 35 hertz. I listen to mostly bass songs. though i do like listening to my spanish too. Bass rap/hip hop music like Young Jeezy, Gucci, Lil Wayne, and so on. Its going in my Altima trunk. Please give me some input, shed some light. Thanks all.

Would using the SSA Icon 15" small ported design work for my BL? Icon 15" small ported design How would i go about changing the tuning to 33-35 Hz?

Hey guys I have a Fi BL 15" fully loaded woofer on the way. I will be building my box very soon here. I'm going to be running a Sundown 1500 D amp to it. I will listen mostly to low HZ rap or bass songs. I am looking for 32 HZ. Few questions: - Can someone give me some measurements for a ported box that is meant specifically for a BL 15" with 1500 RMS going to it? - I have read that this sub woofer recommends a 3-5 cu ft box. Does leaning towards 5 cu ft box have any benefits in SPL? -Any internal box bracing necessary with 3/4 " MDF wood? - Any cotton material necessary inside the box? Thank you

First off, i know i already posted this in general car audio, but i just wanted to get as many opinions as possible, and i always seem to more replies in here than anywhere hahah. Sub: Fi BL 18 with flatwind and p chamfer Amp: Hifonics bxi2006d (again, its not sundown or anything, but it should get the job done for now and even if it is overrated, i think 1800 should push a bl just fine. Wiring: Knuconcepts.. look Not included in the kit are RCAs and the speaker wire. Also should i get 10 or 12 gauage, and what do i need to fit it into the terminal on the sub? Enclosure: 6^3ft after all displacement and port, and tuned to 34.4xxx hz. I guess what i'm looking for is the O…

Vehicle :2002 nissan frontier crewcab Location in the vehicle:back seat Space available (Length x Width x Height):26x50x31 Subwoofer make and model:fi bl Subwoofer Size:18 Number of Subwoofers:2 Type of Port (Kerfed, Slot, Aero, etc.):aero What type of music do you like?:rap Is your goal SPL or Everyday Music?:everyday Tuning Freq (Hz):32-36 Volume :around 19ish i think i am building a box for my truck i am taking the backrest out of the backseat to make some more room the dimensions are with it out i want to do subs either facing forward or up and the ports down the middle facing forward but i need help with how to tune the box with aerports i want around 14cuft of air…

I'm going to build a truck-style enclosure for a Fi Bl10 with a 3'' aero. Dimensions are w: 38 h: 12 d1: 6 d2:8 This is 1.217ft^3 internally. After the bl10 displacement it comes out to roughly 1.1ft^3. When determining the port length, online calculators asks for: Volume of Box in Cubic Feet Tuning frequency Port diameter Number of Ports I want to end up with a tuning of somewhere around 33-35hz, depending on how long of a port will fit in my box. So...... Do I put …

My friend just got his first non kicker sub and he got a fi bl 15 he is putting it in the back of his Chevy extended cab he can make it about 15-18 inches deep 17 inches high and can be up to around 50 inches long he wants his box about 5 cubic feet and 32 htz can anyone help with a design

i currently have a fi btl 12". tunned at 34 hertz, hitting 139.7db. i was told that tunning higher is better for hitting high spl. there is a competition comeing up on the 10th. and the kids at the local car audio dealer ship told me that there were people with 1 12" hitting 142's. does anybody no how high i should tune my box so i can compette.

Okay so, I got my designs, and lowes completly messed up all the cuts, so I have to take it back and complain and hope that they give me new wood or something..... So in the meantime, I just "sketched" up this box. Here is a pic here is the google sketchup file http://files.filefront.com/fibtl18skp/;13080625;/fileinfo.html for anyone who wants it Let me know what you all think! (I didn't make up the specs for this, a help from another member on this site did, I just drew it)

Im really attracted to how loud this sub can get...but ive heard it an have some pretty imprssive SQ...qualities...i know about the BL Q and SSD but those just dont seem like they will get loud enough for me...so...BTL 12s in a big ass sealed box...think it might work?

Ok,so far a lot of testing and tweaking I cannot get my 187s to sound right or get nearly as loud as two 15s should. So I am doing a swap out, I have narrowed it down to 2-3 subs. The Fi BL d1 12, the DC sound labs level 3 D1 or this is a huge "maybe" I was recommended to try the lanzar opti drive 12..........? just trying to get some feedback and if anyone has personally used/tested any of these subs going to run it off my AQ 1200d

I was just wondering if anyone can design a box for my fi q 12 that will get low and loud. . . its for a blow through in a single cab chevy old body style and max deminsions are 48 width 17 high and 70 long. . . i just want to get something the will sound like more than one twelve back there till i get money to actually by more ill give 10 dollars pay pal for whoever does this. . . Also i heard 6th order was the way to go cause i have a 4th order right now but i made it to big so i need someone with some sense to make me a 6th BP if possible if not so input please on best box design. Thanks Everyone Thanks, Teddy