SPL & SQ / Fabrication

I have spent the last few weeks playing with the orientation of my sealed subwoofer box in my trunk and found the best orientation (to my ears anyway) I am now designing a ported box and was wondering if the optimal orientation will change sealed vs ported? Here is the current orientation:

i've decided to give building a box myself a whirl but... i realized i really have no idea what i'm doing maybe someone can help me out with the plans. i'm going to be using 3/4 mdf measurements. width1 = 15 width2 = 10 length = 37 height = 16 sub displacement = .48ft^3 port = 3.5in^2 tuning = 30 hz help me for an orion h2 15.2 www.orioncaraudio.com

so in torres i put a 23.5" length into the calcs. this gives me a 35.07hz tune with a port dimension of 23.5X4.75" and 7.07 cubic. the physical port length is 17.25 according to torres. i need to verify what my port actually is and i feel a bit confused by the measuring. if i measure the port down teh center wich is how i understand the correct measurement to me then i get 20 and 3/8" in length, then i measure horizontally to the inside of the MDF sheet wich is 3 and 1/8". so that makes the port 23.5" long down the center. if i measure on the face of the wood itself i get 18.75" long and accounting for 3/4" thickness of the port itself. on top of that it makes it 2.375…

The dimensions are" 20" Wide x 18" Tall x 15" Deep = 3.125 ft^3 external Internal = 2.385 ft^3 - .15 (speaker) = 2.235 ft ^3 to work with minus whatever port area??? a little area in the back lost to the plexi window that will be put in, but negligible The speaker is a Fi BL 12, with flatwind and pchamfer options. Tuning is suggested to be 32 hz and box size between 1.8-2.5 ft^3 I can't go much bigger due to trunk opening, and for that reason I am building to boxes of the same size and putting them in the trunk that way. I mainly listen to Rap/ Hip Hop and Hanna Montana ( ) These will be facing towards the seat so that the plexi rear is visible when opening the trunk. I …

does any one know of a box building program that works with apple computers ? all that i have found are for windows

Hey all.I just got a 2007 dodge caliber and im wanting to get a system in it.I have my max deminsions that I wuld like to use.They are 38W x 23H x 11D .My question is what would be the best route to go?Im wanting like 4 10's, specifically FI BL 10's.but not sure if I have enough rooms for them.So would I have enough room or would I need to go a different route? OH and I would have the subs and port facing the hatch.Thanks and let me know if this would work or if I need to go a different way.

I am getting ready to make a box and need to know two things. I am building a box for a nightshade 12 and I got an aeroport. The box is going to be sub up port on the side 1) Can the port be inside like old times? The only reason I am asking is all I see nowadays with aeroports is crx style with ports out of box. Will I lose db's by putting port in instead of out? 2) If so how many cubes roughly would it take up? Port will be 15.5 inches long and its a 4 inch aeroport. I am trying to see what I need to make dimensions of box if port is in instead of out. I just want the best possible setup I can get for what equipment I have.

So ive currently have got an Fi SSD15 in a 3 cube box, ported tuned around 31 hz. it murders the lows, and theres no port noise that i can tell despite it having only about 11 sq inches per cubic foot of box volume. the problem is, there seems to be cancellation in the 50-65hz range. it hits great below that and even gets louder over 65hz until it starts rolling off around 85hz. this is in the trunk of a 2001 BMW 525i. i have the sub fired up with the port back. im very frustrated with this lack of a crucial sub bass octave. i'm about to build a new box, in the neighborhood of 4 cubes with a port tuned around 35 hz, with at least 14 sq inches per cubic foot of interna…

im planning on building a spl box for my 12" BL and would like some input from people with experience on a basic design to work around. for an spl box, i know people sometimes use a smaller box with more port area. my daily box is at 1.8ft^3 tuned to 33 with 26.5in of port area. approx how much port area would be ideal for this sub in say, a 1.5 cu ft box? im powering it with a hifonics bx1606d @ 1ohm and its in a 97 4runner, so anyone have ideas on tuning freq also?

So I hate posting help ? On here but here I go again....can some body help me find how to bring down my box rise I will like to get as close to 2 ohms as I can....right.now I rise to 3.5 and I was searching on here but cant find nothing...I no bracing and better airflow accounts so I just need to be pointed in the right direction thats all

Building a new box for 1 15". Was gunna make it an abnormal shape as opposed to the everyday cube. I've heard that less parallel sides results in less standing waves, but I don't think it would be too noticeable in car audio. Anyway my point is wanting opinion on the ideal shape of a box. Also plan to port it. Thanks.

Ok my buddy has 2 Audiobahn Flame Series AW1251T 12

Is there a good rule of thumb to follow when it comes to designing a custom ported enclosure in regards to volume vs tuning frequency? Like the more volume you have the lower you want it tuned? I have been playing with design specs in winisd and based on the graphs I see in the design window, want to build a 3ft^3 box tuned to 34hz for my 12" GCON . How well would this design translate into the real world? Box will be in trunk of my '96 accord. I listen to all types of music but LOVE dub step and deep bass. Would 32hz sound better. I am looking for max spl and bass response through a wide frequency range...

hey guys, i have a 18" fi q with bp power. im running it off of a 1600 rms hifonics amp. i have it in the back of a focus hatchback in a 6.3 cubic foot box tuned to 28 hz after displacement. my question is, if i take my backseat out i can build a bigger box. i dont use my backseat much so idc about that lol but say i built a 8 cubic foot box and tuned it the same, would there be any difference? if so what would the difference be besides no backseat?

whats the smallest ported box, but most spl with 1100w. its going in the trunk of a 94 corolla so size is a issue. thanks jamie

i have one orion hcca 12 with a hifonic 2600d that will run @ 2 ohms ...lookin around for design an the 12 xcon optimal ported 2.65 ft3 tune to 30 is the perfect size i need cant this box work well for the hcca12???lookin for loudness..... thanks

Hey guys im looking to buy a custom box for a Fi Q12 and I was recommended 3.2 @32. I was reading on here that they recommend 1.8-2.5 cubic feet @ 28-33Hz (32 being optimal) Im a little confused, could some clarify what the best box to purchase would be. Cheers!

Alright.. im kicking around the idea in my head to purchase a crescendo 3kwp to use with my 18" BTL (d2) .. when i had my box built for me he wanted to know what size amp i was going to use.. i told him the sundown 1500 (which is hooked up right now) ..he made the box on the larger side, i dont know exactly what the cu ft is.. thing i dont know is, should I do a new box up if i decide to throw a 3kw on it? Does my box size play a big role on the amount of power i feed my sub? Whipping up a new box will be a pain in the ass lol.. but if i go dump the money into a new amp then re building isnt gonna kill me. Im pretty sure I can answer this already.. i have a feeling the s…

I have 40"x 15 x 25 to work with. Would this be sufficient for either 4 sa-8 v2's or a single dc lvl 6 18" assuming it'll fit physically. Its going in a 2005 civic sedan with a 220-250amp alt, 2-4 xs d31's and probably a stetsom 7k or similar. I would like to have itforward fire into the cabin while being sealed from the trunk.

so i did a quick little search, but i am a bit slow and tired and i didn't find anything. i haven't built a box before, nor helped anyone build one.. but i've pretty much decided for my first box to tune it at 32hz, and on the Fi section of the forums they recomend "1.8-2.5 cubic feet".. what does each mean, like how do i know what i prefer. basically waht i'm asking is when the box is smaller, what does that mean? tighter bass? higher notes (roughly)? what. and then it recommends 32hz, so i'm going with that.. but how do i tune it to 32hz? i don't understand how to tune it using the box. or is it a setting on the amp/sub. if you couldn't tell i've never done this before,…

hi everyone, I'm posting yet another topic to see if I can get any more excellent advice. In a previous post I stated that I was gonna build my own box. I know I want a sealed box. My goal is a real flat response. In my literature for my subs (Phoenix Gold titanium elite) they list 2 different recommendations for sealed boxes they are as follows: {Musical: Vb 1.6, F3 33 Hz} {SPL: Vb 1.0, F3 36Hz} My question to you guys is, Since I have 2 subs, What would be the outcome of making 1 box to musical specs and the other to the SPL spec. The speaker placement will be under the rear deck lid with subs facing the rear of the car. Car being my Chrysler 300. The box will be made…

I was wondering, I am trying to figure out how to not make a box but find out measurments ... well what should i look for when I am lookin at the sub specs and what just what do i look for to make sure everything is perfect

In the back of my escape there is little room, especially with the rear strut towers protruding about four inches out each side. The space I have to work with is as follows: 40" wide, 24" deep on top, 32" deep on the bottom. which comes out to be about 10 cubes. The height is what can move, although 18" is ideal. I'd like to keep the box rectangular but if I have to make the back slanted for space that's fine. I want the box to be ported but I have very little room. What type of port should I use and will this work for two 18's? Brand is yet to be determined, I'm still in the planning stage.

ok, i done a trunk build but ports not tuned right and i want to get lower and louder so im going to be removing the rear seat in my 95 fleetwood and thats where the box shall go. i want to keep it at window line so these are my max measurements to work with height 23" depth 26" width 56" height really needs to be 22"-23" but the width and depth can be smaller if need be, with those specs its around 16.5 cubes before subs and port, i want to be tuned around 32-33hz for rap music whats the best size box for this application, please help, any help is mucho appreciated

I'm adding a budget sub stage to my girlfriends 99 Chevy Blazer. It will be 2 powerbass PS-12's on a 600 watt el cheapo amp. Her main choices of music are mainly alternative rock (Matchbox Twenty, Weezer, Audioslave, etc), and country. My question is, what would be the optimal enclosure for this listening style? Would sealed be best for this setup, or a slightly high tuned ported one? (If so, what frequency?) The goals of this system is not necessarily major output, but mainly just adding a good sounding blended sub stage. She doesn't need it to be super loud, but she does want some decent output to be there when she wants it. I will be installing a bass knob for her so s…