SPL & SQ / Fabrication

Hey guys, I have my second Xcon and needing new enclosure but have been debating staying ported or going back to sealed (save cargo space) Anyway, I am first time user of Winisd and not sure if I did this correct so could someone let me know if it looks ok? How do you interpret this graph? To me it looks like ported is the way to go. (I modeled using two 15" Xcons at 1000rms each) Let me know if you need any additional info about my setup...believe my SUV cabin gain peaks @ 49 Hz.

i will be purchasing either an IA DP 15D1 or an IA judge 15D1 and i would like to know a box recommendation for it and what tune would be good since there are no specs on here and their website. the other question is i want to fill the whole trunk with the box amp and second battery/ultracap i notice i will have a very tiny gap with the port facing the back(the trunk lid not the inside) for the ports to push air so i was going to do port and sub face up, just curious to know how much db i will lose from doing that instead of port back sub back or sub up

Do any of you know what software 'HexiBase' is using to make his enclosures? https://www.youtube.com/watch?v=5VFx37kz5Ww It would be awesome to have a bit of a play around with it to see how my current system stacks up. Thanks in advance

i just traded my one 12" MTX 8000 series for 2 10" MTX 6000 series (4 ohm). sounds like i got screwed but the 10 sounds so much better. now i want to get an enclosure for both because the guy i traded with only had an enclosure for one. the enclosure it is in now is about 1.1 cu. ft. it sounds pretty good, gets decently low and decently loud, but doesnt really exceed in either category. i listen to all kinds of rock and some rap occasionally. so i want an LSQ setup. i cant decide whether i want to go ported yet or not. i'd love to but not sure i have the money because i dont have the knowledge to build my own. i am just wondering what the perfect size sealed and port…

i had a post earlier about this when i planned on making my sub box. however... i made the box bigger to 5 CuFt now and im curious if i could still be ok with (3) 4" aero ports instead of ordering up one more? :thanx:

I am running rookie sq in iasca. I was wondering if they have any rules in the sq division regarding vehicle builds. Specifically on caps, # of amps, wiring. I know they do for idbl, but I cant find anything on their website about sq builds. Thanks for any help.

I am going, and I know team gates a a bunch of other big guns will be there, anyone else from here? I am rolling with Ray and the Caton Customs crew, but I am not going to show, I dont have time between then and now to prep my car, nor are my pods built yet

Has anyone tried this when they were bored or may just know what happens if you take a ported box and install 2 ports in the box, one tuned to let's say 30 hz and the other at 45 hz. I'm just curious as to what happens. Does the box react as if there is a major air leak? Do the port's tuning medium come into play and output a tuned frequency of 38hz for this example?

So I couldn't sleep last night and decided to start designing the box I want to build for my 4 SA-10s that im getting in next week. Thought I'd post up the pics.... Also, After discussing yesterday with a few of you and trying to decide how to do port area and everything with some aero ports, I decided on the (4) 4" aero ports.. But then after I designed it and everything I realized that the tuning you guys said was about 39hz.... and Sundown recommends 30-35hz for these subs.. 39hz was like the only tuning we could get to work in order to get enough port area for my setup.. So I wanted to make sure before I buy everything and build this,.. Are the subs going to do/sound …

Has anyone used eDead for sound dampening. I know that their subwoofers arent great, is this true with their dampening materials as well? I won't pay the outrageous price for Dynamat, I can't afford to spend $400+ to do my car. I can get eDead for .80 cents per square foot. Even if i had to double it up, it would still be considerably cheaper than Dynamat, Second Skin, etc. What do you guys think?

Like the title says, im building a new speakerbag. The fun of causing mischief at the mall and walmart n stuff has disappeared, I want this one for something easily movable, for bragging rights, but mostly as my room system. The backpack aspect makes it more fun =) I am purchasing 12 bazooka OEM 5" subwoofer/midbass drivers, and three 20wrms x2ch Class T amps. I have my two previous batteries (12v Motorcyle battery, 12.5v modem battery) to power the amps, they run on 12v. I have four 5.25" mid/highs speakers already, and will add foam baffles to finish those off If i can work them in. I'm thinking (8) 5's isobaric, sealed, w/ polyfill, in .5cuft. I'm not really looking f…

I am looking for a box design for 3 audioque HDC3 10's my trunk specs H 16 in L 43 in W 36 in the mouth of my trunk is 44in looking for a 4.5 cuft box tuned to 36/37 hertz i don't know how much port area though,

Well chaps I'm not 100% happpy with the SPL of my box, its 16.5cuft before displacement, and tuned onto 30hz, port area is 8.3in^2 per cuft, now recommended space for the subs is 6.5 per driver, and I presume port area should be 10^2inches per cuft, so should I line the entire inside of the box with an extra skin of MDF(flex is another issue except on the front baffle) this will reduce area, and also should I change the port for a larger one on the same tuning?? Any advice greatly appreciated lads

ok this is what im working with, i have a 94 corolla 4dr the the subs will be in the trunk faceing the front. the box will be sealed off from the cab. im going to be useing 2-15pbx subs and 2-optidrive2000d (4000w @ 1ohm). the box will be 5cuft @35-38hz w/100sqin port area. ive hit high 130s db with just 1-8" sub w/around 250w on my meter (termlab) so i think i can do it ... so if anybody knows of someone who has hit 150 or over with a trunk setup have them holla at me, or you can just tell me what they did.... thanks jamie

i've been at this for awhile trying to get a design for 2 15'' lvl 3's.. i wanna go subs up port back in my tahoe. any help would be appreciated.

I have yet to personally use an RTA for my own personal use so let's see if I get this right- I want to use Pink noise because that is generated to play how our ears perceive sound. When analyzing what pink noise looks like on a computer, it appears from 20hz-20khz, for every octave from 20hz, the amplitude drops 3db. So, at 20khz, it's very low compared to 20hz but our ears must be very sensitive there(if you can hear it) to perceive a flat response. So, when i go to RTA my front stage, is my goal to also (if it were perfectly possible) to achieve a full range reading exactly how pink noise is generated? 3db drop for every octave up? In the end, I would assu…

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 don't fully understand Port Velocity. Using BBP I can figure the velocity but at what are the acceptable limits prior to encountering negative effects?

Alright, iv basically all over the map trying to consider what type of subs i wanted. Iv made up my mind now and i kind of wanted to know your opinion. I was thinking about going with two Fi 12"Q's, OR two Fi 15" Q's in a ported box, running off a Crescendo BC2000D. Now in order to eliminate trunk rattle, i was told sealing it off from the trunk and firing it forward was a good idea. The only problem is that i cant fold my rear seats down, now i do have the option of buying rear folding seats for about $300. I guess i dont really have a specific question.. just tell me what you think, any improvements or different ideas you think would work best. Since im…

Little problems nothing serious. Built enclousure for some 18inchrolling zcons limited on space but couldnt pass the offer up on some z's. Box is small for ported box and tuned high with a smallamount of port are, basically if you could mess a box up and screw yourself over in output this is the box. 180inchs of port area withc4.5cubes per 18 tuned at 40hz not that happy with the output even on a .5ohm load on a sendo with electrical back it up. My question iss would i see a day and night difference if i built a single 18 box the biggest i could build out of my space? Pics of the franksteinvbox xustom finish on it.

I have 2 SSA Evil 15s My box Outside Dimensions is 41W x 31H x 21D / Double Baffled all the way arournd 1.5" Birch My box Inside Dimensions is 38W x 28H x 18D I have 2 Braces 1.5" x 3.5" x 38" and 1.5" x 3.5" x 18" I need help with designing a port. I would like to be tuned to 28hz / As you can see my Port is too Small. I dont want to remake the box i would like to Remove the Port and Fix this Box. Box inside Cubic Feet Empty 11.08 Brace Cubic Feet .17 Both Subs Displacement / 2 x .22each = .44

I'm going to build a box for a buddy of mine that has a 1988 Camaro Iroc-Z. It's not going to be in the wheel weld as of other boxes. But right behind the rear seats. In this picture where the amp is located, there will be an enclosure for them, and it won't cover up the whole trunk area. I am going to use dual 4" Areo ports, and I was wondering how long will they have to be to have a tuning of 32-32hz. I'm thinking 1.6-8 cubes in total for both subs, and the amp I am using is a Polk Audio 4channel 800 watt amp that will be bridged to run at 4 ohms. The aim is mostly for SPL since there is no true SQ. But he would like to be able to listen to a variety of music, such as:…

any body have it its impossible to find

I have an old sub box that came with an RE SX15 I bought used. It is 3.1 cu ft net before driver displacement. It has 2-3" aero ports in it. 9" long. I used it before with the sx15 wired at 2 ohms on my saz-1500d. I never heard any port noise, but it didn't sound great. I later built a 4.25 net cu ft box for the RE tuned to 30 hz. It sounds great. Well I think I have a buyer for the RE and was wondering if an SA15 would work in the old box. It's about the right volume and tuning would be right about 35hz(recommended) but it's seriously low on port volume. I was also thinking I could put a third port in it for burps and bump tuning from 35-45hz. Not to mention increasing …

Ok, so now I'm hooked. I have the 2 12" zcon's in and the 2500d. Now I want more. Have an eye on a ns-1. What will I need to do for a competition box? Keep in mind that I do have a s-10 extended cab 3 door and it is a daily driver that I want to make into a competition truck. Current box is supposedly 4.75^3 at 36hz? I think the hz is correct. Have to double check. It was designed by ram-designs. It's a angled back or trapezoid style box. Top is 14x43, bottom is 20x43 and it is 18 tall. I come uP with 5.4^3 after sub displacement. What do I need to do? What is the difference in a comp box vs a ported box?