SPL & SQ / Fabrication

i was thinking something like this non walled with a 2:1 ratio at 50hz? or do u think my setup like this would be louder?

I have been to the 2 local (small ) car stereo shops in the area and neither have RTA. Anyone have any suggest to get a reading of my system. Would love to be able to get it tuned up

Where should i put the port? This is going to be in a blazer, and if back how much room should I leave between the port and tailgate?

I have an re sx15d4 in a box that is 2.9 cu ft gross w/2 3" wide 10" long aero ports. I will be running an saz1500d @2 ohms into this sub. I want the best sq I can get from this sub. So I'm looking for box recommendations. Right now I'm looking at building a 4.2 cu ft box tuned to 34 hertz with a slot port facing the back of my jeep and the sub firing up. I used the box calculator to design the box.

Okay, Im not much of a box-builder. Nor do I know any of the concepts to box-building. I was wondering for my MAW-15's, Which I'm putting in a 4.0 ^3cu. ft. box sealed, When I get the box built does it need to be two independent chambers with 2 cu ft on each side or 1 big 4 cu ft. box. I wasn't sure what if that had an effect on the subs and/or their performance. Thanks in advance. ~MadroX

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?

who's going, and JW why registration is free? Who's putting up trophie money? Keep me posted. Sounds interesting

Ok. So I keep hearing different things from different people. Maybe some people over here have some decent advice since im not getting it else where. So I have a DD3512. DD recommends 2.5cu ft ported at 40 hz for their enclosure. Some of the local guys here who run DD say NO. that I need about 4cu ft ported about 36-38hz for one DD 12. Then another guy I was talking to online who tests TS parameters and sub on a daily basis says that the 3512 can play great in a box down to a cu ft. but is good in about 2-2.5cu ft ported at about 34hz. WTF?! All these dimensions contradict eachother and I know DD isnt a super woofer that can play in anything so someone help me out …

guess i am looking to do a 1.5 tuned to 34 hz with the sub pointing up. I have a 4" aero port that i would like to use. i would like to keep the depth at about 15" if possible. any help would be great.

hey guys i got a question for ya. im building a box for 4 15 fi ssd's and i was wondering if a box built at 15.5 cu ft. net and tuned to 32 hz with 200 sq in. of port. its going into a blazer. think this box will work? any info would help thanks.

Is there anyone out there that custom builds subwoofer enclosures to spec in the Orange County, CA area??? Please let me know! Thanks!

so i have just bought 4 ppi pcx 12'' subs and i need help building a box but im not good at all with knowing how big or long to make my port. i have a two door tahoe and i have plenty of space height 22'' width 46'' and length 37''. here are the specs each sub needs 1.25 cubic feet so 5 cubic feet all together. speaker displacement incuded is already included port diameter 2.6'' (inside) per sub port length 12'' per sub Equivalent Square Port 2.3x2.3 per sub if anyone could help that would be awesome i would also they the box to be around 30 hz's too

I should be seeing a Orion HCCA 15 pretty soon and I'm going to want to build a box for it. I found the instruction manual and my dumbass can't see the inner port wall (L shape). I'm cutting pieces of paper pretending its the box but I'm still lost. I'm sure I'll be laughed at but still. http://www.directedd...08-11MLweb2.pdf I'm looking at page 30 in link. Thanks for your patience.

Im about to be doing an enclosure for 2 12" Memphis m5 subwoofers. . And I cant find enclosure recommendations for them.... been looking on google for a while and cant find a straight answer.. anyone know around how big I should make this? I'm going to be trying to get them behind the 3rd row in an escalade. . Dude has not brought it by yet so not sure if ill be able to fit them yet........., ported by the way

I have a F250 Crew Cab and have 3 JL old 10w6s powered by a Diamond Audio D61000.1. They are in a 52" long box ported to 33hz. I want to get a 10" Fi BL and 1) wanted to know if this will hit harder that the JLs and 2) the box recommended for the BL is 1.5cubes, could I make a bigger box for the 10?

right now my box is subs up, port back 20 cubes before subs and port with about 200+square inches of port tuned to 33hz, designed by chris at fishercustoms. It picks up lows and pretty loud, only metered before i built this box and was 149 on tl and did 151.7 on audiocontrol meter at local show. Now with this box, it sounds louder to ear, but havent metered yet. Problems now are i have bought 2 boxes of stinger roadkill bulk, did roof, doors and back door. It doesnt rattle bad, the back glass is terrible, but everytime i open back door, metal braces or pieces of the lock and handle are broken and fallin off. LOL. I got guy i work with to tig weld a rip in back door alread…

hey guys, this is probably a noob question, but i have an 18" fi q in my car with the bp option. i have it hooked up to a hifonics 1610 1600watts rms, i am running about 1200 (i set it with a dmm). its in a 6.3 cubic foot box after displacement, and its tuned to 31 hz. my question is, why is it that when my doors are open it sounds alot louder than with the door shut. opening the windows helps when im driving, but its getting cold and i wasnt sure if there was anything i could do to make it loud with the doors and windows shut. any help would b great. thanx.

I have two alpine type r 12's and i want to build a crx-style box for them. This is the design i came up with using the max dimensions i can inside my vehicle. I really can't seem to get the tuning quite right, and it says its about 30hz, but what is the ideal frequency to tune to for daily driving? Also any helpful hints to getting this box to stay together? I blew the port off the screws in my bandpass like two weeks ago. EDIT: And yes the subs are going to go on the top.

So i broke the latch on both of my back windows and plan on sealing them up. not the rear the third row windows. i bought some 3m window weld. Hoping that will hold it. since its 28$ a tube. Link any suggestions?

Do you guys think an 8" aero port would be enough port area for 2 12" zcons? They would be in about 6 cubic feet after displacements. On around 3500 rms. Tuned around 34hz. I want to go with a 10" port but an 8" would be a lot easier since I'm only going to have about 36" for the width. You think I should test it out and try or do you thinks its forsure not enough?

This H2 Hummer was at the 2003 North of the Border Bash.. it got 143db in the SPL competition.. The guy doesn't compete.. he just wanted to see where he stands in the SPL realm...

I have 2 AQ SDC2.5 with an AQ1200D amp. I have a 5 Cube box for them now but due to the fact that it wasnt planned out very good the box in crap and is all but falling apart now. I came up with another design but im not sure how well this will work. The subs call for 2.5 cubes a piece but with my new design it will be around 2.2 cubes a piece and the subs would be pointing pretty much up. I know that these are not ideal conditions for the subwoofers however how much do you think this would effect the overall sound. This is it any comments plz.

I am looking to have a ported box made for my 15" FI Bl and have looked into the group buy for khaotik enclosures but the box specs wont fit in my car. im looking for somewhere around 4 cubes sub up port back and am limited to 34" wide and about 14" tall the depth doesnt really matter. i would also like a double baffle and either some sort of coating or carpet applied to the box. thanks in advance for any advice and help.

Big dilemma, trunk car im working with. I have 7.445 Cu Ft internal area for use if i fire up but the box will be removabable so i can grab my spare tire if i need to. Will up firing in a trunk lose me alot of spl or clarity? Which direction should i fire the port if im making this setup. Also for two RE SX 15's how much port area should be used? The port area is a very limiting factor as its robbing the little amount of area i have. The other way i can do is rear firing but i must make a two piece box to fit it in the trunk. The subs would only be 2 inches from the rear lid of the trunk. I gain .2 cu ft from switching but the amount of work would be substantial and i wou…

All 3 of these can be found at Home Depot. The goals i'm looking for is the best stiffness, yet no heavier than MDF (96lbs). All sheeting would be 3\4". I read and read about these sheets and i can't get any concrete info about them... I would have also done a vs Arauco but i cannot get that around here.