SPL & SQ / Fabrication

wondering if anyone else is going to do SLAP this year, I am not sure because there are not that many shows near me, and I am tight on money to build for competition

instead of continuing to hijack ryan's pic thread, i figured i'd start this up in here.... my opinion, based on talking to a few world champs and experience.. bracing is overrated. as is double baffles. they should only be used of the sub is extremely heavy, u have a really long, flat straight stretch or u are using vast amounts of power. for everyday box building, the box isn't going to flex enough for anyone to hear, see or notice a loss from. in most cases, if designed properly, the port can act as the bracing. for the most part, the best thing u can do for ur ported box is round off all port angles, but even then, for everyday use, it isn't necessary. to gain tenths o…

I have one, and I believe the knob is dead, the light does not come on and I cannot control the unit from it, I dont want to send it into PG and have to pay 100 just for them to look at it, any ideas? or Dave could you take a look at it?

Well thaks to McVay in Oswego we finally have some "local" shows scheduled for the 2005 competition season for IASCA. The first show is on March 27th, with one show a month all the way up to the month of October. I don't know about the rest of you guys but since I was unable to accrue enough points towards Finals last season, I just can't wait to get back into the lanes this season. For a list of the IASCA Events just click IASCA Event Calender

Live in Texas and the temp can range from 95 to 105 from May to middle of September. Just want know how to keep my amps cool from running and the temp being so high?

So, I need to find a small, color, wide angle camera to mount in the mustang. looking out the rear window. Prolly mounted to the headliner looking through the hatch glass.... maybe in the hatch keyhole. Inversly, I'd also need to find a cheap LCD monitor to glass into the dash. not so big. 4-7". I need some kind of rearview mirror... a wall will tend to prohibit that. any advice? Google has yielded me alot of $500+ rearview systems for RV's & delivery trucks that are quite big & bulky. Thanks -Nick

So the Mag that is coming is going to need a worthy home in April's alero. I'm thinking: Shooting for 1.75ft^3, ported to 32hz with 18in^2 of port. Only going to feed her ~600rms @ 4ohm (Lanzar Vibe). Woofer in the rear corner, port running fwd and venting into the center, amp (the white thingy) frenched into the glass 'in front of' the port. Coo? -Nick

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…

Where is a cheap place to get some 3" Aeroports ? I saw them for $13.88 on this site, just wondering if there are any places that are cheaper. Its gonna be about $35 shipped for 2, which isnt the most appealing thing ever

ive been hearing that the tantrum amp can actually get u put in higher power classes in some organizations because of the output at 4ohm..anybody know if this is true or not? and if so what organization does this.

what do you guys think about the new rules and how it will effect this up coming season?

i can design a sealed box fine. but how do i add the port? i cannot figure this part out!! especially when using 2 woofers and putting the port in the center. or even putting the port at one end or the other if anyone can give me some simple directions or a link to some i would greatly appreciate it

Who will be there? Who is competing? What Orgs? I'll be in Street B, and street classes...

there is no information on their site, anyone know where I could find the info or who to email? I want to put these in a box up against the incomming 4 Funky Pup 8s

yes many people are effected by proximity to events, but most are in the range of at least 2 assocations

POLYURETHANE FOAM the reason im writeing about foam when im talking about fiberglass, is that you can make mold's out of thing's. just fiberglass over it then get some acetone and it will eat the foam and keep your fiberglass mold. they have 2pt. polyurethane foam that is equal mixing self-rising foam. most 2pt. will start foaming around 45 second's after you mix the two, and will go for a few minute's after. now it will expand around 25-30 time's it's liquid form. unlike polyester foam, polyurethane foam it's compatible wth both polyester resin and epoxy resin. (which mean's you can paint the resin on and it wont evaparate) now they have polyurethane foam sheet's allread…

im makeing this post for ppl trying to use fiberglass on there install's. this will help you understand how and what to use to make the job easyer. i will have more later and hopefully have a step by step so you can see it at work.... so here we go... the material's you might see is fiberglass this came's in many form's such as chop mat, cloth, fleece, speaker grill cloth and speaker carpet. next is the resin again came's in many form's, polyester and epoxy. these are the most used in the car audio world. other thing's you'll see is PVA, mold wax, MDF, bondo ect ect.... (and a few time's steel mesh, but i never used it.) ok now im goin to talk about resin. the resin we mo…

I was wondering what the consequences of running 16v in a daily driver car would be. I know the car is designed for 12v, so it probably wouldn't like it. I was just wondering if it would cause damage to the car's electrical components. <--I like that smilie

Okay I am stuck in VA on Fort A.P. Hill right now and can;t make a new box so thats out for now. My 2 boxes are built for DD9512's and are tuned to 47hz. I want better impact from them. They are facing the back hatch with the ports next to them so it looks like one big ass box with a split port in the middle (if you can follow this). Anyways this is in the back of a 99 Ford Explorer XLT. No sound deadoner yet. Tryign to get more impact in my back. Thinking maybe slide them closer to the gate???? J

Who will be competing next year and in what organization and class. I will be competing in SLAP in the stock 0-160 class

i've decided to give building a box myself a whirl but... i realized i really have no idea what i'm doing maybe someone can help me out with the plans. i'm going to be using 3/4 mdf measurements. width1 = 15 width2 = 10 length = 37 height = 16 sub displacement = .48ft^3 port = 3.5in^2 tuning = 30 hz help me for an orion h2 15.2 www.orioncaraudio.com

The Effects of Cabin Gain in Car Audio Have you ever wondered why car audio systems can have so much bass as compared to a home stereo system? The reason has to do with space. Your home has a lot of it and your car audio system doesn't. Because there is so little space in a car the bass notes (which are long waves) build up inside the passenger area. To calculate the length of a sound wave you divide the speed of sound (in feet per second) by the frequency. At sea level, the speed of sound is approximately 1,127 ft/sec. For example, a 40 Hz note has a wavelength of approximately 28 ft (at sea level). (speed of sound)/(frequency) = wavelength OR (1,127 ft/sec)/(40Hz) = 28.…

I understand the physics of it, but Casey showed me the Pioneer Death Match winning truck that did deep into the 170's, can someone explain more? I want to understand about them, also when is it benificial to use one and when is it not? here is the pic of the wall

how do you find out about competitions.? i've never heard of anything in my area like this. i live in cincinnati. which is a big place. but i guess car shows and sound comps are limited. or... i just don't know where to look

Yup I finally made a decision and the sub is in the mail!! My sx12 will be arriving soon and I need to build a box. I want to give it about 2.5 cubes after port displacement tuned to 34-35 hz. Building the box is not a problem, I got that part down. I just need help figuring port area/length. So any way you guys could help out would be awesome!! Thanks Tom