SPL & SQ / Fabrication

Picked up 4 havoc 15's for my ext cab f150. Problem I have is my max width in the back is 58.5" and I want to fire up so I can't do a straight baffle and have enough surface area. I need to do an angled baffle and have come up with two ideas but wanted to throw it out to see if anybody had a preference between the two or maybe other suggestions. Max dimensions are roughly 25h x 23.5d x 58.5 long These will be sealed:

does anyone know the t/s parameters for an oz matrix elite 12.2(dual 2 ohm voice coils) since i can't find the bl or sd measurements anywhere? and from your past experiences what enclosure size,port and tuning is best recommended for maximum street bass?

I need help mainly with the port calculations for a 10 cubic ft box and a 20cubic ft box This will not be a chambered Box I'm "not sure what size cubic ft box I'm gona build yet" So if you have a formula that can figure port sizes that will help allot this is for two BL 18'' subs. I can build a box just need some help with this. Thanks

Does anybody run bandpass boxes and if so, what subs are good to run in that type of enclosure? I quit running bandpass boxes awhile back because I thought they hold in wayyyy to much sound....

Hi, I need help with a spl box in a sedan. My car in a Acura cl 97 the seats do not let down but there is a 7 by 10 hole where the arm rest lets down. My subwoofer is a T3 audio tss 15 with one Sundown a Audio saz3000d pushing it. What is the best setup, sub firing to the back with port to the back, maybe sub firing up with port to the rear. I'm 39 years old an have been out of spl for years but I miss all the fun. I donot want to be in the way at shows so can you guys help my with a design that may work.The car will be use for spl music.Thanks for any help.

Hi, I have been using fiberglass resin in my boxes for years Does resin help spl because the box is harder or does the resin help with the sound wave, maybe the speed of the wave.I just want to no if I need to resin or not .My spl numbers or the same with or without.Thanks for any help.

i have a box with 4.4 cubes after sub. it has 2 4"x12" ports can some one tell me what it is tuned to please

so i still havent gotten around to doing a new box for my bro's L7. but im thinking about trying something alittle different. he basicly only wants spl so im thinking about trying a wall... i have to build the box in the trunk anyways so might aswell try something new. its a mercury sable by the way. im thinking 6 cubes net design from the manual or do a tuning around 34hz...? we are prepared to deaden the rear deck, etc. will there be more output from a wall in this car or would it be a waist of time? if we did the 6 without the wall there wont be much of a trunk left anyways... and im sure we can seal the trunk off from the rest of the car effectively.

Current setup is Mach 5 MLI and Seas H1396 amplified by an Eclipse EA4000 and all the processing is done by my Alpine 9813. I'm very satisfied with the midbass output and the top end, it's just that midrange isn't cutting it After seeing Ryan2's idea with the Fostex FF85k's I thought trying a pair and ditching the tweeters. I don't want to invest in the H701 at this time and try 3-way (would require some sort of controller too and another 2 channel amp, not to mention the extra room ) The problem is placement. I have no room in the dash to mount them. Pics of the "locations" : One idea is to use the kicks. Passenger side is ok, driver's side could work but there's v…

I just finished a build on a trans line box, Its a 1/4 wave 33 hz. But i thought i had read some where that 1/2 wave trans lines were better, but impractical for space. so i thought i would make a box with a 1/4 wave at 33 for daily and 1/2 wave at 66 for comps, but from testin the box in my house the box getts really quiet after about 40-45(guesstimation) when using a reasonce test song, so was my idea of a dual purpose box dumb.. and are the only good trans line boxes 1/4 wave boxes?

I discovered this on a Honda forum that someone had posted, the description of the box are in the web browsers little tag (this is how it is using firefox). They range from 1-2 subs, and 2 cf all the way to 4/5 cf. The tuning is a little high on a few of them from 35-37 hz, but theres some lower. I think this may help a few out, Sub Box Diagrams

Working on some fiberglass corner enclosures on an upcoming build for someone and i noticed that the corners that they will be installed in are slightly different. since i was going to begin by making the backs to rest perfectly flush i am wondering if having slightly different airspace for each side, say .1 of a cubic foot. would cause problems. I would say the left box will be about .9 sealed and the right would be about 1.0 if anything. should i add an extra piece of MDF to the bottom to compensate? i didn't know is the different Fs would cause some type of clash in the response

I started my base mold about a week ago, and popped it out after the second layer. Right now im on my fourth layer for the base, and it seems to be getting really stiff. Probably going to end up doing 2 more layers. I have a question though, does fiberglassing polyiester rope to the inside of the box help stiffen it up? i thought I read about that on here but im not sure.

I have finished the boxx for the 2x 15" WMD^2 subs w/ carbon fiber cones. wanted to have a boxx for MUSIC, not SPL the external dimentions are H- 18" W- 41.5" D- 35.5" Port was rear fireing 2x pieces 16.5" x 23.75" overall H- 16.5" W- 5" Lv- 23.75" I was shooting for 25Hz port Freq: got D@mmm Close went for a drive and it really POUNDS on the lower notes and has SMOOTH Transition between higher notes... the subs are loacted on the rear of the boxx facing Up ^^ neer the back window port fires to the rear door seperating the subs and BRACING the boxx Pics / a lil late but better than never Strapped @ 1ohm / 0.5ohm per amp DAILY

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

Hey guys, my friend has a Ford Ranger and he asked me if having the port facing the door or roof would be louder. And I decided to ask on here for him. Reason because he is getting a box designed, what would the pros/cons of having it facing either way be? Thanks in advance.

I did some noob calculations and would appreciate someone varifying what I have done. I would like to do this build one shot. Here is what I have done so far. Skip this if it doesn't help. The box I have now, 40" L x 16" W x 16" H. Internal volume considering 3/4"MDF, I got 4.68cf - port dispacement (4.75 x 14.4 x 30) or 1.31cf = 3.37 - driver displacement of (.16 x 2) or .32 = 3.05 or 1.52cf/driver. I did two alternate box calculations of which I am interested in one. It is as follows: 40" W x 20" W x 16" H. Internal volume considering 3/4"MDF, I got 5.97cf - port displacement (4.75" x 14.4" x 17.28") or .68cf = 5.29cf - driver displacement (.32) = 4.97cf or 2.48cf/driv…

I cant decide if i want my port to be in the middle of my 2 18's or @ the bottom below my 18's people reply back asap thanks=]

Hi, Can anyone help me with a box for one T3 Audio TSS 15 for a 1997 Acura CL? The CL is the Acura's version of a 2 door Honda Accord. My amp is a Sundown Audio 3000D. I can use up to 4.5 cubic ft. The box needs to be for SPL. Thanks to anyone that can help me some numbers.

Does anyone know where I can buy a copy of the USACI SQ disc with Hotel California? Or if someone can burn me a copy, I'd be willing to pay...of course.

Do crx boxes work in a trunk with the subs up an ports faceing the back?

Hard to explain. Currently i have the standard single fifteen ported to the back, sub and port rear facing. I have a 03 maxima, and would be interested in sealing this to the interior of the car and firing the sub forward, with the port firing up through the rear deck into the rear window. I did something similar in my last max but still had the sub firing up. I sat i a car with two orion hccas sealed to the rear seat and ported finging up through rear deck, and NEED THAT. Anyone up to the task?

I'm going to be putting together a new box this weekend for a 10'' BL in my reg cab ranger. First off, the box will be 1.6@36-37 with (2) 3'' aeroports (Fi recommends 1.25). Will I run into any problems with having the box larger than optimal size? How should I put my ports? Here's the space I'm working with: Option 1: Option 2: Option 3:

so my friend tried to paint the box he made for his girlfriends jeep black, but where the screws are its all messed up, and the paint is dark and light in some places and fades alot and doesnt look that appealing all together, i figure i could just use woodfiller for the spots for the screws and sand it down flat, but what about getting all the paint even and pretty? need to make one for a guy i know and he wants it painted so anything will help, thanks

alright... so i dont have back speakers any longer... . and long ago a few guys here jimjm5 im not gonna name names told me to drop my rear fill. well now i have a sexy sundown 4 channel and and my front is in need of a filling sound. i listen to rap.... so sq is funny for my goals right... but lets talk about it. im gonna get some http://cgi.ebay.com/6x8-5x7-to-6-Speaker-A...1742.m153.l1262 and some deadener.... open to ideas.