SPL & SQ / Fabrication

K, box dimensions are 35x32x16 externally. Internally this gives me roughly 8.57Cubes. I want to port this to 34hz or so, and i need a min area of 6 cubic feet after displacements, is this possible? I also need to know how many sq inches of port i should need. I am just going to run out and grab 2 sheets of MDF right now so any help would be wonderful. The only confusing part is that the RE calculator keeps giving me ridiculous port lengths when removing the second portion of the L to make it a square. Any port dimension recommendations would be wonderful. Thanks in advance. Chris

I came across these pics and was wondering if i could install some 8" mid-bass drivers in the same location. SQ/imagining is what i'm concerned about. Would it fly or should they be installed/positioned somewhere else?

ok so i woke up today with spl on the mind, i called my local stereo shop that i once worked at, i requested a termlab run, the man told me it had not been used in 4 years, and didnt know how to use it even if it worked, he was worried about the mic, he said that maybe it had to be adjusted, or tuned, i dont know anything about that, but it said it could take weeks, i wanna see where im at on the scale, im also intrested to know where i would be at in SPL class, i have a car with a trunk and thats where the subs are at!.. no none walled, saz 3000d 3 yellow tops and 2 15's and my system sounds better with the windows down... is that outlaw? i dont know much about …

Just wondering if 2 3in areo's would be enough port for two 8 in subs would be tuned to 31hz need input ASAP

Uh its me again this time instead of an extreme i need a box for a kicker comp 12inch 4 ohm sub that will be going in the back of my explorer i have tried my best with the messurements but i am new to this it is 38'' inches tall, 42'' inches wide, and 38 inches long it's not the best sub in the world so the demenions do not have to be perfect just a simple design would work for me........ just send me a message on here....... if you can.......

Alrighty then. So im trying to decide whether to wall off my new system or having port back subs up. What do you guys think would be louder. The dimensions i am working with are. Length 53 , Width 49, Height 47. The system i plan on doing is two Fi BL 18s with two Sundown SAZ-1500d. Thanks, Kasey

I need some advice on whether to go with 2 btl 15s or 2 btl 18s. I have about 16 cubic ft of space to put a box in my car. I will post pics of the car asap. I am just looking a system that hits hard hopefully around 148 to 150 dbs.

hi i got 2 sa-8 subs and im gona make 1.6 Cubic Feet = 45.3Liters enclosure but i dont know about port can you help to get calculations right with square port

My lil ass will be there with my bro from Tallahassee...just booked hotel and plane tickets. see he just busted a 159.5 Shane? Like 5th in the USA (SS1-2)..hell yea! more free chit!

ok i posted this on another spot on this fourm but i think i might have put it in the wrong spot....im building a box (hopefully my btl will be here soon) im going with sub up and port back....i was wondering if its would be best to put the sub over the port or closer to the front of the box or just in the center

I posted this on another forum and I would like to hear the thoughts from the gurus on here as well I have been ready through pages and pages of threads on adding rear fill to help maximize the front stage. After understanding how rear fill is used for this application many folks (including myself) have been thinking how to acquire the necessary L-R. On a side not L-R seems to be the most common method although there appears to be other methods for generating a rear fill signal which require a fancy processor. The MiniDSP 2x4 has a plug-in Rear/Center Channel. This plug-in gives you the generated L-R signal, xover, 31 band eq, and up to 27ms of delay. You can al…

Hey everyone! I'm looking to replace my current set-up with something new. My amp just died today on the way home from work and so I'm in the need of a replacement. Currently I have a set of RS65.2's up front only, after pulling out the rear deck speakers. Having only a front sound stage is new to me but, after running it a few weeks, I got used to it and really enjoy it. What I'm looking for is either a new amp to power the existing set I already have (not sure how much life is left in them) or get a new amp and a set of components to match. Budget is ~500 but I wouldn't mind going a little more if I could get a nice eq in there to really dial in the system. If you need …

would a port facing the side work in a 2001 eclipse hatchback.......its about a foot away from the panel if I were to face the port to the back ....the port will only be about an inch away from the back panel.... and I don't think it will have any air flow. if I face the port to the side .....will it practically be the same as facing it to the back?

I need to find out what the correct airspace is with this box. The depth is 20" with the sub facing up. The 36" is the bottom of the box. It's shaped like a "T" to fit over the wheel wells. I know it's kinda crazy, but I need to maximize the room I have for an 18" sub I have coming in shortly. Thx for your help, Vic.

I'm looking for someone whos got a TL anywhere in wisconsin or near illinois border.

i already have a btl 18 in my magnum but am wanting to add another. what im wanting is some ideas on boxes, not sure what my max dimensions are. thanks for any ideas

Hello all! I am looking to reconfigure my trunk set-up in my Mazda 3 and am looking for some feedback on my idea to see if this would give me my desired result. Currently, I have the subwoofer firing straight to the back of the car, with the port opened up to the rear deck ( I use a flared round port). The problem is that the rear deck is completely solid and this causes quite a bit of rattling, even after deadening the whole trunk. What I am considering doing is rebuilding the box to have the sub firing straight to the back of the car, with the port opened up on the back of the box. In order to do this, I would need to put an elbow on the PVC port because the box will…

my box is going to be 7 cubes after displacemets. box is 20 inces deep (so one port side can be 18.5") 112 inches of port area, 33hz my question is, can i do two ports, each 18.5"x3" at 12" long for ~33hz would that yield a net port area of 112 and keep the 33 hz tuning? if not, how do i go about calculating this? im going to try to do a drawing real quick to help you see what im doing

Can someone help me out with some dimensions for a sealed box for 2 Icon 12's? Need 1.25 cu ft. per speaker. Going in an Escalade. Have 46.5" width avail. Currently in a badass ported box I built. Want to try out the sealed enclosure for SQ. Attached a pic of my current box.

Well thaks to McVay in Oswego we finally have some "local" shows scheduled for the 2005 competition season for IASCA. The first show is on March 27th, with one show a month all the way up to the month of October. I don't know about the rest of you guys but since I was unable to accrue enough points towards Finals last season, I just can't wait to get back into the lanes this season. For a list of the IASCA Events just click IASCA Event Calender

im would like to know if port are is THAT important. freind of mine has a BL 12, he wants to buy a box that another friend built, but the port area is under 12 sq inches per cube. the sub that was in the box before sounded pretty good. just wondering if the port are being a lil small is restricting output or SQ in any noticeable way. its off by like 8 sq inches. thanks

how much port do i need for a 9.0cf box is 120'' of port to much port---like 16.5'' tall 6.5'' wide 16''deep i just dont wont to much port any help would be nice

Alright guys i'm in the market for a system ( my first ) I have a 98 Z-71 EXT Cab so i have more room than needed. I'm wanting 2 fi btl 15s & 2 saz3000d's or 2 1500ds.....the problem i'm having is idk how to build a box lol Nor do i know what kind of wiring to get, if anybody can help me please help

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

what tunning should i use for my box , i need it for LSQ should i do, 25-30-35 or 40 ??