antonmiller

his goal is over a 155 on music. with out a wall, running in the no wall class

wow... this info just rocked my brain, it will take a while for this to settle in

anyway you could elaborate on this?

I heard from some one that it makes the bass a little more muddy and unclear if you use alot, but that doesnt make any sense to me... also i believe it helps remove some more resonence of the already "resonance dead" MDF. but IDK, this should be a good discussion. i know that adding wooden dowels and fiberglassing the inside of my box added me .3 DB going from 144.3 to 144.6, but thats all i know.

I have the same goals you do and i went to school for product design and engineering technologies and plan to continue and get a mechanical engineering degree some time. in a while i plan on opening up an audio shop, well mainly an install shop, seeing as i realize that not many people want to buy car audio goods from a car audio shop (too expensive). start out in your garage in your spare time and maybe grow to something bigger as you get your name out there (also what im currently trying to do ). I know there is a school in Canada somewhere and one in Arizona IIRC, IDK the names tho, the best school is experience, apply for the job at best buy and see where it goes. I got denied an installing job at best buy because i didn't have any certifications or anything like that, they didn't even bother to call they just sent an email (damn paperless way of applying there, they don't even see your face before saying yes or no to an interview).

most people just do car audio on the side just because the money isnt there for it. There are schools out there, just dont know any. a buddy of mine went to school for audio and when he came out he couldnt find a job anywhere, just ended up working construction and doing installs on the side. Just keep it as a hobby, as soon as you turn a hobby into a career it will get boring. Like i love to build things, but construction was not a job i liked, i liked doing my own stuff, but things for other people just wasnt for me.

I went to take some vids today and when i got to my spot, i found that my video camera's battery was dead. but i still did some testing, i found a piece of tape that was vibrating against the box and creating a really weird noise, kind made it sound better, but i have a question about something that ive never experienced before, usually you get port noise at the end of the port, like where the air exits and enters, not at the beginning of the port, i have no port noise outside the box, but there is some on the inside!?!?! i just dont know what to do about this, its only on the 40-45 hz notes, 38 and under its all good. but that range you can hear some turbulence INSIDE the box. im just confused.... any help would be appreciated. But it seems to be louder, its hard to tell by ear, but im happy with this result overall.

im embarrassed to admit this, but my first install when i was 16 years old i accidentally hooked the RCA's into the headunits INPUT instead of the SUB OUT, i was wondering the same thing you are, amp light is on, im getting power, but no sound, crap the subs must be junk. sure enough the next day i went to check the RCA's behind the headunit, sure shit they where plugged into the wrong spot. lol so that might be your problem. just check it out, anything can happen.

MORE PICS i currently have the short box in my car with the Fi BL 12 and the Rockford T1500 for testing. you cant really tell a difference by ear, but on BME Click by Lil Jon my windshield moves more than it did before, but it may be all in my head. i forgot to take pics of the box installed and will hopefully get vids and pics of it tomorrow after work (depending on the weather).

thanks man, it just sucks driving 2 - 2.5 hours to work on a box for about 8 hours (if im lucky) on the weekends when I can actually get up there. but hopefully this week end we can get the car in the garage and do some initial testing. but who knows.

Being bored in a small town is perfect for becoming a box builder. it all me and my friends did in highschool was work on cars and build stuff. i grew up in a town with 700 people in and it was 15 miles away from where i actually lived. closest stop light was 30 miles away, lol. but you have to start some where, not being able to build your own enclosure (regardless of quality) will be very costly in this hobby.

UPDATE So i finally found some time to get up there and get a little progress complete. mainly just did the visuals, i wasnt sure how i was going to paint or carpet the box. so i just did what i thought might be cool and quick. so i bought some primer, textured paint, and some semi-gloss and flat black , I didnt know i bought 2 different kinds untill i took the picture. lol. i finished the boxes with the flat black cause thats what i was going for. so first i sanded the boxes edges down to get a nice looking edge. Then I primed the surface and sprayed the textured paint on. I forgot to take step by step pics of the first one i did so the second one was a little lacking (ran out of paint, it takes alot of spray paint to paint a full box!). then i used the semi gloss as a "base coat". then the final coat of flat. more progress coming. please bare with me on this one as i have to travel 2 hours+ to work on them.

thanks, i ended up putting it back I took my spare tire out once and the spare tire well made a horrible squeeking noise when the bass hit, so i put it back in untill i get some more sound deadener.

I have done a few CAD positions with very similar work over the recent years. It's got its ups and downs. Strikes and gutters, as the dude would say. The software is a nightmare, pro/engineer. I call it pro/p-o-s. OEM projects are the best. Logging and verifying hours. The paper work. Oh, and don't get me started on revisions, I love revisions. PRO/E is a nightmare...we use Inventor at work....easier to use but has its own drawbacks as well. PRO/E Isnt that bad, they redesigned it all so it works more like solidworks form what i hear, in college it was an easy transition from solidworks to pro/e i thought. anyways, im a drafter/designer for a rubber molding company, i design molds that make printer rollers for cannon, kodak, ricoh and many other company's printers. I use Solidworks, its also what i use for box designs

why are you porting out the back like that??

next weekend will be a big one. i have a pool tourny tomarro and thats why im not working on it this weekend. but next week end will be when we finish the boxes and get me a new exhaust installed.

carpeting the inside is just dumb. make sure the guy you are going with has kerfed wood before. its not as easy as it looks. to achieve a good finish on the curve it takes alot of work. also i forsee it to be difficult to be carpeted on the outside with a kerfed port. carpet may not turn out satisfactory. make sure hes good at what he does. not everyone can make a masterpiece box. look into the guys at the custom fabricators section. they all do good work.

i have progress, but no pics. unfortunatly my friend who's place we are doing this at had a christmas thing on wednesday and i had one on thursday, i didnt get up there till about monday night. but we did get the exterior of the tall box completely sanded down, all edges look nice on that box. and we got the top on the short box, ran out of paint brushes so we could resin the corners in both boxes. but no pictures. next update will most likely be after new years. THIS IS JUST TAKING TOO DAMN LONG!! (I blame the booze and the distance .....)

Just a heads up, Im assuming no progress will be posted untill christmas night or the day after. if things go good this next week, i will have vids and pictures of the completed boxes in my car. but just might be a while.

just thought of this, if you went out and bought a 6" pvc pipe and put it in at 33 hz it would also need to be around 30 inches long. just one though.

if I did this... What should the length be? And what difference would length make? what do you want your tuning at? at 33 hz like you say it is at now. you would need them to be around 30 inches long. but im not sure on that due to the fact that i dont know how to properly calculate dual ported enclosures. maybe some one with some more round port experience can chime in.

this is my box build this enclosure for your BL and you will be happy. it does me very well. some things are wrong on the drwing, such as the cubic feet and the tuning. its actually 2.5^3 tuned to 34 hz, with 39 square inches of port. built for a 12" BL

you can go get 2 4" round pvc pipes and put them in that gives you 25 square. and its not total volume, its port area. so the opening of your port. if you made a 2d drawing of it and and figured out the area. then thats your port area.

UPDATE not a big update again. i know im horrible. but its almost done. we got all the resin and sanding done on the inside, we also got all the port top piece. we needed to wait for the glue to dry. and on the short box we got the resin done and the sanding as well. and we have it all done except for the top plate on that one. so they are almost done. but it still isnt done. also the pictures are bad quality due to me forgeting my actual camera at home so i was using my camcorder which doesnt have motion sensing thing, so they are kind of blurry. HERES THE PICS now one more week of work then im back at it. then after this weekend i have a week off of work so i can get some testing done as well. again i wont have numbers for a while.

some day i will dot his for a living. but right now mostly just do designs over the internet and build boxes for some friends and myself. never made a dime off of car audio, sure have spent alot tho! lol in about 2 1/2 hours ill have some pics up. not completely done yet. but its getting close. we also made sure they fit into the car it self. a few mods need to be made to get the tall one in, but it will go. short one slides right in. its a perfect fit!