SPL & SQ / Fabrication

Sprint so I have a 06 tundra access cab with a fi x12 in I believe 2 cuft ported box tuned to around 32-34 maybe. But why do I notice such a big increase in "volume" of the sub when I put the windows down or open a door? This is probably a noob question but I'm just curious. Thanks. Btw it's running on a 400rms powerbass amp. It's where the back left seat would be. Standing up with the sub facing drivers seat and port facing the passengers side. Thanks

hey i have a 02 ram single cab and just took out my center seat out in order to create more clearance and air flow for a sub/box. my question is; what is the best placement for my sub for sq? this is what it looks like w/o the center seat: and another shot: http://www.dupontregistry.com/Celebritycar...C-9363FD33193B} thx in advance

whats up, I've had 6 systems in 4 cars, 2 of my cars were hatchback. I had 1 sedan with a sub in the trunk for a year and a half, at that time I was'nt trying to make my system louder, now in my present car I'm on my second system and I want to get louder. but the system is in the trunk. I know no matter what I do it wont be as loud as in a hatchback. Is it possible to make a spl vehicle in a sedan. Are spl numbers as high as 150 achieveable in a trunk? My system is fairly loud now,I hit 137.8 at a local shop with my old system. but that was with 880 watts rms to a 15. I was'nt to impressed cause some guys were hitting 5-10 db more, with nearly the same wattage. I hav…

Vechicle is BMW 7 series... The cabin is so well sealed, that not much bass has been entering the cabin of the vehicle. It's stuck in the trunk. I'm thinking about doing a new ported enclosure that would face the rear seats, and is completely sealed from the trunk. Hopefully, it will force more air through the armrest ski-pass...I'm trying this because I don't really want to slice up the rear deck. So the question is, should I leave a few inches between the box and the rear seats or build the port so that it extends into the ski-pass and seal that as well? The goal being maximum output, of course... Any help is greatly appreciated.

I'm finally going to put my 2 TC Sounds OEM 10's to work. I have 2 10" matching passive radiators that I'm going to use, too. I usually go sealed, but want to try these out ported (so to speak). I was going to build one box with 2 separate chambers to specs (.6 ft^3 each) but was wondering if I could just use 1 common chamber (1.2 ft^3)? Another idea would be to get another passive radiator so I'd have 3 total for 2 subs in a common chamber? Would this be better than the 2 (I heard that you should have a bigger sized passive radiator than the woofer)? All inputs are greatly appreciated. Here's my current set up: 2000 (JDM) Subaru Legacy GT Twin Turbo Wagon Yellow Top Op…

i bought a 4th order box from someone and i want to make the port bigger but not sure how much port area i should have. i was told by a couple people that for a 4th order i should have around 20 square inches per cubic foot of the ported section. the ported section of the box is 13 cubes so i figured 9" x 29" would give me 261" of port which would be 20" per cube. right now i only have 198" of port which puts it at just over 15" per cube. im not sure if this is the correct way to do it so i was hoping someone on here could help me out with this thanks.

Ive got a sundown 3000 amp and a 300amp circuit breaker. ive been to a few comps and my circuit breaker has blown in some of my runs. Is it ok to run the system without the circuit breaker just for comps?

Okay, so I had two questions: How does inverting your subwoofers affect SPL/""SQL"" if at all? & How would I go about making one side of my enclosure plexi-glass? (how to secure it to the box) Just asking because I've never done either before and was thinking about one or the other for my next build. Thanks guys!

i need to finish out the boxx and wall off the open side where the batterys go

First off managed to pick up a 93 civic hatchback for 700 bucks and I would like to know what type of set up would be best, like port direction, sub direction, box style all opinions welcome as i'm pretty sure someone here would have done something like this already.

ok ill give a quick run down of what i would like to do.. i would like to build an upside down L box.. with the slot port going into my cabin.. and my subs on the long part of the L inverted. to save space and show off motor... here is a pic of my trunk. the top part is is 10 tall... 19 deep and 41 wide. from the floor to the step level is 14 and from the floor to the top lip is 26 and i want to port thru the rear deck ill cut this all away i know its kinda hard to picture what im talkin about... ill come up with some sketches of what i would like.. but im wondering WILL IT WORK!!> i need some where around 3 cubes and tuned to 30htz thanks guys, ps. not…

We have been consistently beating Experts in the top class with unlimited resources. We of course are on a budget. We have over 45 years combined experience between the 2 of us and started out in SPL. We are competing with the current world and SBN iSQc championship vehicle. In the works is my 1988 Red S10 BlaZa to compete in the 159.9 class and win SQ at the same time. below is 10 years ago below is door panels from us in 1992

For years i have had this idea for a box design, i always asked others what they thought of the idea. Well here I am again yrs later wondering if some kid really good at box design would want to put it to the test. this is a totally sealed box design with a tube inside the box 1/4-1/2 of the box volume and same diameter as your drivers mount rim. this tube is just that a tube, a directional enforcer of the sound wave to the back of the full box. I was always told it was a stupid and fruity idea, any you kids wanna play around with it on a computer model and see what happens? maybe I am crazy but the idea to me is it would give a little more crunch on that SPL meter since …

Still looking for a new car. One that I can also have a good daily SQ setup, even have room to compete in. I am also thinking on competing in SPL next year. I wish I could make up my damn mind. '99-current Lexus GS300 maybe IS. Still researching the difference '99-current 4-runner '99-current Accord '99-current Camery "99-current Maxima All these fit into my size, power, and gas milage requirements. I have drove all but the lexus. Sometime this wekend Ill drive one. I have a potential buyer on the ATV so I will have a decent down payment. But I wm looking for the best stock stereo placement and the car with the mose room for growth. Ideas and suggestions definatl…

Hi, I am curious as to what the best way it is to have the system not be choked up in a trunk. currently my box leaves about 4-5 inches of room between it and the side of the opening that goes into the cabin from the trunk. so thats the only gap there is between the trunk and the cabin, unless you count the rear deck, but that doesnt let much air through. so im designing a new enclosure to fix this problem, now my question is, is it better to have space for air to flow above the box or on the side of the box? this will be for a sinlge 12" BTL, and if i do it with the airspace above the box i will have about 3 inches tall by around 28-30 inches wide of a gap between the …

Okay so i already had a box designed before but i wanted to try it all on my own...thanx to the12volt.com box and port calculator i figured out a simple box i can build...here are the specs BOX: W-47" H-25" D-28" PORT: W-30" H-5" D-10" The box will be 16.4cu ft and it will be tuned to 35hz...the port will be facing back with subs fired up/inverted...

Currently I have a center console in a single cab chevy with sub up and port up. Like so.. Or what about something like thiss?

Hey guys. New to the board here so I hope this isn't a played out topic...... but the only design I can find on SSA's site is for a single sub. Is there one floating around somewhere? The only one I could find on the net was here ----> http://www.*****.com/board/topic/158983-need-a-ported-box-design-for-2-12-ssa-dcons/ Is this a good one to try? I noticed all the youtube vids I've seen with 2 the box looks like the single enclosure design, with the port to the far side of the face. Thanks in advance.

Does anyone have any ideas of box designs for two 18'' xcons or two Fi bti subs in a Explorer behind the rear seats since I cant build a wall?

For my next set up I'm thinking of running an active 3 way system. I would like to run an Sax-125.2 or a Sax100.4 whichever is better for a 3 way setup. My budget its slightly fixed anywhere from 200-250 for the 3 way set up. This will be going into a 4 Door Explorer. I typically listen to anything from Rap to death metal to spoken word; I would like a system that is well versed and able to transit from genre to genre with ease. Also to be able to reproduce it accurately but also i need something loud to be behind 4 15's. I am able to fabricate things; i have fiberglassed and know how, also i have access to many tools. I need to start off finding Tweeter, Midrange, and a…

Vehicle : 88 Corolla FX Location in the vehicle: Hatch Space available (Length x Width x Height): 38x18ishx16ish Subwoofer make and model: Not sure Subwoofer Size: 6.5 or 12 Number of Subwoofers: 1 or 2 Type of Port (Kerfed, Slot, Aero, etc.): T-line What type of music do you like?: Rock country rap dubstep electronic etc Is your goal SPL or Everyday Music?: Musical.."SQL" Tuning Freq (Hz): Not sure Volume : Not sure Questions: Been reading and watching videos on T-line boxes over the last week and im really wanting to try one now with either 2 6.5s or 1 12. Currently have 1 american bass xr12 on a r…

Would it be possible to make a transmission line box for 2 18 Q's in an area that's 16" tall x 39" wide x 70" long with an additional area of 22" tall x 52" wide x 10" deep OD? Like this: Would having the subs mounted off center make it not work?

I had a place build me a box and i gave them website to check out the specs, i just wanna make sure everything was done properly before i go ahead and accept this box. fits perfectly in my trunk (he measured before he made it) my subs are still being manufactured... so i have time to correct this if not. any pro response would be appriciated. H 14" x W 32" x D 24" is the overall outside dimensions. im not sure what he tuned the port to. the outside of the port is 12.5"x3" if you need more measurements id be more than happy.

I used the SSA enclosure tool and just want to check and see if everything seems right This is going in a 99 civic sedan, SDC2.5 12". I have all this calculated for a net vol. of 2cuft and a gross of 2.65.....will that be good? Any recommendations for a better box for this sub? Outside dimensions: width=30 depth=15.5 height=14.5 For the port, tuned to 38Hz: width=2.5 height=13 L shaped so... L1=12.25 L2=1.5 and the enclosure tool says total port length is 18.25...is it calculating straight down the center? Area=32.5 displacement=602.875 in^3 or ~.35 cuft I'm really not too sure about the port.....also if i were to use winISD, what sub should i use for calculations or…

In short order: I've layed out so many ideas for the cargo area of my truck that i've gone cross-eyed. The trailblazer's been a test platform since I got her last year. It's about GD time that I finalize something for her. Afterall, it's my daily driven - 400 mile a week vehicle. '02 Trailblazer LS; no third row seats; no ext version. I need to actually be able to utilize the U portion in SUV. So: a.) build an enclosure / rack along one side b.) make a wdith-wise enclosure that is easy to remove I've gotten to the point where I think it's easier to visualize designs in trunk cars simply because you have objects to work with / around. This stationwagon though, is kicking…