SPL & SQ / Fabrication

Hi guys, i have a trunk car (2004 Camry) and right now my setup is sub/port back. I have experimented with placing the box closer to the front of the trunk (closer to the back seat) or further back (near the rear bumper), so far my car rattles less and sounds louder when closer to the bumper.. Question I had was, would I gain anything if I flipped my box so that the port/sub was firing into the cabin? if I am listening to the sub at high volume I usually fold the rear seats down to allow more air to move... Wanted to know if anyone with my car or a similar setup has tried this and what results they had before I manhandle a 100lb box and re-wire my amps etc.. thanks!

Kinda sad. Been looking to get into competing but all the organizations I have looked @(dBDrag, USACi, IASCA, and MECA) don't have comps around the Indiana area. All are in Ohio and what not. I don't mind traveling a state or so but why no shows in IN?

I'm afraid of my port being too long.i am by no means an expert but here is what I got... 1 team fi 18v2- 1 scv 4000 a couple of extra battery's 130 amp alt stock "mechman 270 soon" big 3-dual runs of 0 through out my box whic isnt built yet is 24t-24d-44w with a slot port 22.5x6" I'm wanting to tune to 28 for lows. I want it to be fairly loud but it's no big deal if it isn't I just don't want a boomy box tuned to 40 lol. Any way with a tuning of 28 and that size box I figured around 12 cubes before port-and with the port being 46 or so inches long I'll land near 8cubes after port. which puts me near 28 hearts or so... problem is with a port that long will I run into reso…

I have read alot on building ported boxes in the past couple of days but here is what i was planning on.... Putting two kicker 12" L7's in a ported box. Here is my ? When porting the box is it more efficent to put one port out the middle where both chambers connect to, or to port each individual enclosure on either side/ or in the middle just separated!? If using just one port is there a need to separated the two chambers before the port?? THanks!@

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.

Hey, i'm gonna spill out all kinds of info so make sure you understand it, hehe. I'm currently workin on your design right now, you will be using external dimensions of 42" wide x 17" tall x 22" deep. This IS what i am going with. You will be using a double baffle on this box. Box material will be constructed out of 0.75" material. I need to know what bracing material you will be using, Wooden dowels or 2x4s? Internal dimensions- 40.5" wide x 15.5" tall x 19.75" deep. Your speaker Outer Diameter is 10.91", i went ahead and rounded up to 11" for a hair more headroom for accidental measurement inaccuracy. Your Baffle design- The border around this baffle is showing the th…

Looking for someone to help me design an enclosure with a kerfed port. I have been trying out doing it on scrap wood in my garage for a while and wanting to try it out on one of my enclosures. I have someone wanting an enclosure built right now and figured it would be a good one to start with. Its for 2 sundown sa8v2's in a trunk . I was told there Going to be on 1-1500 rms. . .Max dimensions - 30 wide 10 tall and 16 deep. (Ill ask if any of the dimensions can get bigger) Wanting it subs facing up and port back. Tuned in the low 30s. 30-34. . . . . Listens to mostly rap music.

Well, here's the deal. I'm going to be building a box for 2 Fi Bl 18's. I figured up the box will be 11.27 cubes before displacement, which is about 10.81 cubes after sub displacement. I figured that I will have 158 sq. inches of port area total. The question I have is, since I want to tune the box to 34hz, how long do I make the port? The port will be 44.5" wide, and 3.55" tall (inside measurements).

Current setup for my 15" Xcon: Sealed enclosure with dimensions - H: 17" W: 32" D: 15" Total space I have is: So I want to do sub up, port side firing w/ aero ... Does this looks good in Torres' calculator???:

I've been trying super hard to get my box calculations right. Can someone confirm these #'s?? I really hope I'm on the money. in advance. Box is 32" tall, 15" deep, and 18" wide. Port is 16.5" tall (internal), 2.25" wide, and 40" long. Looking to be 31-32hz, 2.25cu.ft. after sub and port displacement. :fingers crossed:

Soo pretty much, I've been wanting to do a more compact sub setup for quite some time, and since its spring time, I needed a nice little project to keep me busy! The design I came up with is pretty simple in concept... basically its going to be a fiberglass ported tube enclosure simular to a bazooka tube. I figured these enclosures can offer me a more compact enclosure than a big box, yet still be ported. Its going to be constucted using a 10" in diameter by 48"cardboard tube used for concrete molding (simular to a sono tube). I'd cut it to the length I need to give me my airspace, create an MDF baffel for the sub to mount on to, use a smaller tube to form the port. …

Hey all here is a noob question that I need answered.How do I double baffle where my subs are going to be?Like do I just glue 2 peices of MDF together or do I have to do something differenet besides glue?I know this is a major noob question but I am going to be attempting to build a box for my 4 10's and I want to double baffle and flush mount where my subs are going to be and wasn't 100% sure how to do it.Thanks in advance. HawkEye

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…

Hey guys. I need a little help designing a ported enclosure for my new Crystal CMPx2 15". It's going to go in the trailblazer for now. I listen to nearly everything so I'm looking for a good daily build. I could be off but I'm thinking I want to tune somewhere between 31-33Hz so I can get some lows. My size limitations are 46" wide x 16" high x 14" deep. I have a little wiggle room on height and depth, but I'd like to keep as much space as possible in the Trailblazer. I will post T/S parameters below and I expect to be running at 1500+ watts with maybe a little headroom, probably going to just grab a RF T1500bdcp, unless I get a better deal on something else. I'd really…

guys i have an idea i want to do a new enclosure in the trunk of my 1995 caprice i was thinking of building 2 boxes one on the left side of the trunk facing inward and the other on the right side facing inward as well the boxes will be built to specs and ported for my db drive k915d4s powered by a bc3500d i also plan on cutting out the area behinfd the arm rest in the center of my back seat to act as a port into the cabin thid setup is for spl only but be used as a daily driver what do you guys tthink as fsr as the perfomance aspect of tis desighn there will be a total of 4 subs 2 on each side withe aproxamatley 10-15 inches between the boxes or less tips and feed back n…

I got my RL-p 15 metered in a ported box running it with about 800 watts and I hit 146.3, which is above my goal but not enoguh for me competition wise. So I was thinking about getting 4 or 5 Assasin 8's for competition. Only problem is that I have a ED 9.1 amp, and it only goes to 1 ohm, the speaekrs would be wired parallel and that would give them .8 ohms. I'm guessing it would be ok to run this on that amp because the wires and everything would bring it to a grand total of over 1 ohm right? Also, would five 8's be overkill? Should I just stick with 4 instead? Thanks alot.

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?

Okay this year I compete in DB Drag Street B, and SLAP S2. Next year I want to do street max 1-2 in DB Drag and SS1 in SLAP I currently have 2 vfl 150.1s I like them, but they just arent doing it for me on 14v. I want to get new amps in a few weeks, and hopefully use them next year too. I have a few in my mind I have been thinking of, but I wanted to see if anyone could chime in with some good, strong amps at 14v. Thanks.

just kidding ok when posting DB numbers you should post what mic it was on and how you metered (sealed on the dash or outlaw) seeing all these people doing 155+ make's me cry till i find out it was on the ac mic with the door open LOL

I am in need of a site or location to get OEM fabric. Not having any luck with Yahoo or google. I not only need the same fabric my seats are made of but I need quite a large bit of OEM vinal also. The local dealership here wanted too much, nad I had to order in bulk on top of that. 2002 Chevy Silverado Tan interior Any help would be appritiated.

i just bought a 1990 crx and i have 2 audiopipe txx's they are crap but work for now i just need some help with the box should i have port back subs firing up ? subs firing back and port back? or any ideas? ive gutted the interior in the back i want to fiberglass it all

My substage is complete and now I am looking for some midbass/mid/tweeters. I have never used active crossovers but would like to for this build. Any suggestions for something that could keep up with (4) 18"s and 8kwrms. It is going in a suburban so I have all four doors available, plus the possibility of a custom center console. I was thinking about making center console enclosure for the midbass, but found out most mid bass speakers are designed for IB. Are there any that would work well in that style of enclosure? Would PA speakers(seen a lot of people using electro-voice) be a bad idea? Any suggestions or links to similar builds would be appreciated.

Well im starting to gather all the parts to build an active 3way setup. I know what im getting into and i know its probably far more complicated than im expecting but i love the challenge. I plan to build pods for the midbass and midrange. The tweeters i plan to mold into the factory location on the door pillar say it stages correctly in that location. Im welcome to all suggestions when it comes speaker choice as im still considering lots of options. I tend to like a smoother highend with alot of punch in the midrange if thats of any help. As for budget ill put a max per driver price beside the speaker type. Im not saying these are for sure max but its what im tr…

i have no experience in enclosure construction at all and have been tearing through forums for some helpful advise in enclosure designs. I am pretty confused at this point about some things and was wondering if anyone could clear it up? I am under the impression that if a certain speaker is in a smaller enclosure that it will handle more power and a larger enclosure will be more efficient (less box rise). so if that is true, will they be equal in spl if they receive the same amount of power (after rise) rather its in a "smaller" or "larger" enclosure? i have also heard of people covering ports to play with their tuning, is this just a solid cover reducing the height/width…

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