SPL & SQ / Fabrication

so i was told my wall was too big, lol which it is 16 cubes for 4 12"s, but beyond that, we still get a solid 152 on 1900 watts clamped, looking to gain fairly large numbers (1.5 db) without increasing power and withing 2 weeks lol. but i was told about a rear loading wall, the guy told me that he stumbled across putting a "wall" inside the wall that has around 2-3" of gap between the edges and was at a slight angle, claims to have gained him 8 db (i doubt it, but he has all the equipment to know what he did and how much it gained). what do you guys think of this, all i can think of is that is sounds like a bandpass with some sort of a horn effect to it... im not sure…

hey guys, im purchasing 2 12" Fi ssd Im looking at a ported box, I was just wondering if i need the divider in the middle of the box giving them their own little chamber? or can i just make one bigger port rather than 2 smaller ones ? also aeroport? Is it worth the try ?

I'm running an Fi BL 15 on a sundown sae-1200d in a scion tc. Bought a prefab box for it a couple of months ago but im looking to get my system as loud as possible (currently upgrading electrical as well). The box seems to be tuned around maybe 50hz or so, as in Young jeezy's song "white girl" (i believe it has a 30hz note and a 50hz note) and the 50hz one hits way harder than the 30. If i built a new box, and tuned it to around 33hz, in that song it would be the other way around having the 30hz note be the louder one correct? Heres the box that I have now: http://img841.imageshack.us/img841/1833/img2746u.jpg How much would it cost roughly to build a new box like this (s…

Hi, I am getting ready to switch my system from my firebird to my truck, so I can sell the car.. It's going in a 99 s10 ext. cab xtreme.. I have 1 12" pioneer premier 3002d4, It's in a sealed box now, but I want to build a ported one for it. I will be using a precision power 1500 amp at 2 ohms, so roughly 1000 watts to it. I know how to do the wood work, but I am not near as good with calculations.lol. A good slot port box design wood help a lot, if anyone has the time. I would like it to be tuned to 34hz, with 1.7 cu without the sub. For room in the back of the truck I have 14 1/2"x18 1/2"x50".. I know thats more than enough, but thats the total space I have. Also, wh…

Hi, I am getting ready to switch my system from my firebird to my truck, so I can sell the car.. It's going in a 99 s10 ext. cab xtreme.. I have 1 12" pioneer premier 3002d4, It's in a sealed box now, but I want to build a ported one for it. I will be using a precision power 1500 amp at 2 ohms, so roughly 1000 watts to it. I know how to do the wood work, but I am not near as good with calculations.lol. A good slot port box design wood help a lot, if anyone has the time. I would like it to be tuned to 34hz, with 1.7 cu without the sub. For room in the back of the truck I have 14 1/2"x18 1/2"x50".. I know thats more than enough, but thats the total space I have. Also, wh…

I have 2 Orion H2 12.2's to be powered by 2 Orion 2500d's and want to build an enclosure for them,the only problem is i'm not sure of the air space to run.I want to shoot for max spl,i was told 4 cubes per sub tuned @34 hz is prime but i'm not buying it.Any help would be appreciated,thanx!

Yeah i know i haven't posted in a long ass time.. However.. So i finally got the Navi goin a while ago and sold the town car. I kept my same box i had and just threw it in after i reconed my MT's. So needless to say 10x louder in an suv than in a car. But after a week or so off playing music i start to notice rattles and squeaks. So a few days later the bass just isn't hitting. So I go back to the box and see this... Thinkin to myself dam, i might need to start fiber-glassing the inside of my boxes lol. Funny thing is i can listen to my music all day up loud but passengers seem to have sensitive ears..on the broken box at that. lol 2 18" mt's 5k watts btw 150's im hopin …

Hey all.I REALLY want to build my own box but im worried that it would be to hard to do.I would like a simple dual 15" ported box for my type r 15's.I just don't know if its something I can tackle or not.So my question is in your guys eyes on a scale of 1-10 1 being easy as pie 10 being hard as can be,how tough is it to build a ported box?Also is there like a site or something that can help me with a design and other stuff like that?Thanks

I know it may take some time specially being designed in mm (As I live in Aus) but can someone or as many people as possible confirm roughly these figures??? Also, feel free to use this design and enjoy!!! BOX HEIGHT IS 260mm, 224mm are Internal Dimensions as all pieces join to TOP/BOTTOM ------------ --------- Also I designed this for a 8" Rockford Fosgate P2D28 sub w/ a bit of extra port area for sub upgrades that may have up to 13mm in XMAX such as say a DD sub (P2D28 has 9.5mm)

As always, I have been running around with ideas for the time when I have the money to actually do something with them. I have a large trunk, however with an extremely small opening to get into the trunk, and so I have always had to restrict the size of any box i intend to build so that i can sqeeze it past that opening. So for my next idea... how would it sound to have a single downfiring 15" ssd in a sealed box? For now it would be recieving only 500 watts rms untill I could upgrade. It would be raised 4 inches off of a wooden base, in a 18"X18"X10.75" box (interior dimensions). I have never seen this done in a trunk so i'm curious about its effects. My goals are a "cl…

We will be finishing up on my son's car soon and I have been wanting to wall-up my ride for a while now. I have a '93 T-Bird and I really have no need for the back seat. I have thought about a newer vehicle, but the old bird runs and drives great and I work very close to home. I allready have a pair of Saz-2000 amps and 150' of 1/0 welding cable. I am deciding as I write this about the SA-15 Presale. My thoughts about the wall are as follows: From a rough measurement I have 31-31.5" height 42" width 22-23" depth These measurements should give around 14.75cu' gross I would like a slot port centered with a measurement of about 29.5" high and a width of 6" thats 177" at alm…

Hey, this is what i got: 1x pioneer sub ts-w3002d4 @2ohms=1000rms QCA3500D amp; 2ohm=1750watts rms enclosure: 20"x16"x13" port size: 2"x11.5" everything on my car is stock and i think my amp is putting out a little less than what is rated performance wise, i dont think that my sub is performing like it should, my excursion is nothing compared to what I see on you tube and im not sure if it is because of my enclosure. I know that I can get better power if i upgrade wiring but I think I should be getting more out of what I already have. I want to try a different box, does anyone have any suggestions on sizez and I dont know much about tuning but im not getting high end …

So Lowes is having a sale in my area and i noticed that 3/4 MDF 4x8 sheets are on sale for 32$ I was wondering, how many 4x8 sheets would i need to make a 4.0cf ported box After displacements. Any help is appreciated. Oh and theyre having a sale on 1/0 for 1.93$ a ft

I haven't had much experience with the science behind port tuning/building, but I've been doing a little research and some calculations and have a question concerning port "size". Let's say I have a 1 cu.ft box, and I want to put a aero port in it with a tuning of about 33hz. I used a calculator and I came up with a 2" diameter port with a length of 6.3 inches.. or a 3" port with a length of 15+ inches.. My question is, what's the difference in having the 2" short port as opposed to the 3" long port and achieving the same tuning? To me it would just seem logical to go with the small and short port to save space and material, and just be an overall convenience.. but this i…

what type box would you suggest for a sq setup i know the norm is sealed but i've heard a few ported boxes and they sound pretty nice give me some of the pros and cons of both btw subs being looked at are idqv2 12" IA LI 12" and SA-12 thanks for any heip provided

1 18" DC Level 5. Still waiting for some other bits to come in (amp/battery). But in the mean time, we want to go ahead and start on the box. We were thinking of these two options. 1) Sub up/ports up. Have sub in middle, with a port on each side of sub instead of a single port. Does anyone see any negatives to this besides using up more wood/cost more? etc... Basically would like to do it this way because OCD side is taking over, and we would like to keep it symmetrical. 2) Sub up/port back. This would just be sub up, with a single port along the bottom of the back of the enclosure. Pretty straight forward. Basically, just looking for yall's opinions. Which do you t…

they had it locked on to show just the highest db hit, so idk what i made on tones. my sweet spot is somewhere between 40-45hz but i hit 135.7 with my single 12" FI Q w/ BP Option, powered by SAE 1000D my first box, tuned to 31hz playing the opening of Tortilla Chips by T.Bizzy. mic on driver side dash, passenger door half down. in a 2001 Jeep Grand Cherokee. sub and port facing back hatch nothing fancy in here. i know when i bought it i was curious of some numbers, i know it's not made for SPL but i was somewhat impressed with what it did.

Would someone be so kind to briefly walk me thru the process of how to properly secure a fiberglassed roof? Basically.. i'll take the headliner down.. build a wall in my car, then from the B pillar on forward, that will be fiberglassed, ok? this is where i get lost.... How do i attach the fiberglass mold to the vehicle so i could remove it again if i needed to?

im going to make a box for a fi bl 15 and punched the numbers in the re box calc. and the size and hz was way off what the picture says. i mite just be being paranoid but id like to know for sure b4 i go spending money on wood for a box that isnt what i want...u know. thnx in advance ~Bill

i have a 1991 mustang convertible with a shoe box for a trunk. the dimensions are 10h x 9-11D x 40 width. i've been hearing great things about how the sa 8 is a great spl small woofer and wanted to know if i could really fit more than one into a box with such small max dimensions. i also need amp suggestions to run the one or two i will be getting thanks!

I came up with this design for my subs, but I am having trouble figuring out what size the enclosure will be since it's an odd shape. Just wondering how much space each sub will have with these dimensions.

Hi I was just wanting to let everyone know that I do free subwoofer enclosure designs if anyone is interested just send me a pm with dimensions and your subwoofer model and I'll get back to you as soon as possible. Also I can build quality subwoofer enclosures at an extremely low price so if anyone is interested in that send me a pm with the subwoofer model,box dimensions,what type of music you will be listening to, and if you will be entering in any SPL competitions. My email is [email protected] and if you would like to contact me by phone my number is 901-569-3975 and ask for Spencer. EDIT: Mods if at all possible can you pin this because I don't really want to hav…

Hey guys. im buildind a new box for the sa8s. my dimensions are 56w 16d 8.5 tall. im shooting for around 35 sq in of port and 2.0-2.2 cubic ft volume. the subs displacment is .10 each driver. i put it into the re calculator ( i know its not exact) but i want the port in the center of the box and not one side or the other but thats not an option. i want the 4 subs facing forward and port back. anybody got some extra time to help me out? much appreciated!! Steve

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.

just double checking my calculation my box is 2.42ft3 after displacements and the port is 3.5"w by 13.5"h by 42" long my tuning should be 32-33hz im i right at all?