SPL & SQ / Fabrication

What makes this sub the happiest on daily?? It will be built out of birch ply, fed about 2ooo watts and space isnt a issue.. helps appreciated.. Im not asking for a box design, just what volume and tuned to what, I can design.. Thanks in advance..

So tonight at work I was discussing my upcoming sub build with a few guys. One of the master debaters argured that stuffing a sealed box with poly-fil was recommended and the other said it was a joke. Yes? No? Why? Thanks.

ok so my bro has a 15" l7.... seems to be alot of these mentioned in the forum lol. right now its in a sealed 1.5 cube box. a kenwood kac something something powering it with 900rms. car is a mercury sable with the mach audio system. currently the amp is using a loc to get single but my bro will be geting a mtx req or similar device later this year. theres no deading in the car and it rattles like crazy as is.... sorry to anyone who has heard and affended by the rattle... hes geting like 2 rolls of raammat for xmas from my parents we picked up some mdf and liquid nail today and plan to do a new box for the sub. im hoping to do a ported box with a pretty spl oriented de…

my friend wants me to build him a box for his 2 12" lanzar vibe dual 4's and i cant find any specs on these subs let alone what cubes/tuning freq. to build for, its going to be ported for SQ-L if anyone can help me out. thanks and aparently if i try to just type SQ-L without the dash, i get LSQ?

im currently evaluating a couple of designs for my setup and this is one of them i would love to get as much feedback on this as possible. it will be in a 95 single cab dodge ram.

sorry if this is in the wrong place, i wasnt really sure where to put it. move if needed. i just know lots of RE questions get asked so i'd thought i'd start it here. i posted the same thing on caraudio forum and thought i might as well post it here too. if anyone has any ideas i am open for anything. -getting around on a build for an 18 inch 2005 xxx. ive done some searching on box sizes and such for this and i am thinking... 8 cubes 34 hz 115 inches of port do those numbers sound about right? bigger box? more port? this is going in a 97 grand marquis...huge effing trunk...FTW amp is a saz1500 i was also porting the rear deck and taking out the back deck speakers. was t…

hi, what is the rule of thumb for port tuning to gun for in SPL install? 45~48hz? cheers

This guy is nuts. Many of you have probably already seen this but it was my first time coming across it... Dodge Sprinter

looking to do a wall with 4 AQ HDc3 15's and 2 IA 40.1's and need some plans drawn up for a 88 civic hb for bass race and db drags. If there's someone on here or if you have some contact info for some one please post it up as i would like to disscuss dimentions and price of the plans. Thanks mel P.S. I won't be on here again until mon.

I am using CAD right now to try to make a 3d design of my box. My question is if it is an 8 cu ft. box before displacement with external aeroports, what kind of internal bracing am I going to need even with a double baffle? This is getting a fully loaded 18" BTL by the way, with a Sundown 3000d. If I use 3/4" MDF will I have a problem with too much flexing? Also one question this is my first build, first system and I want to know what your guys preference is on MDF from different suppliers. All I really have around here is a Menards and I work there so I can get a small discount on it there. I just wondered what you guys think of the quality of Menard's MDF compared to ot…

Ordering a AudioControl DQXS digital processor sometime in the near future. All the speakers I have are in my sig. I need suggestions on where to place these bad boys. Two 6.5"s are going into the bottom of each door. for the 4s and tweets do u fellas suggest I do 1. midrange/tweets in doors and a-pillars. 2. doors and kicks 3. kicks and A-pillars note: each 4 will have a tweet right beside it, so it wont be off axis

Short notice. Saturday August 9th! Xtreme Sound Cruise-In and Competition. 1701 Queen City Avenue Cincinnati, Ohio Registration begins @12noon... I'll be there with my TL running the SPL portion. We'll be doing a StreetBeat style, and a headrest SPL style... as well as cheap re-runs... -Noah

I picked up a tdx 15 dual voice coil 2 ohm for $100 in a pre-fab box. 1200 watts rms. Hooked it up and found out the box is broke. It sounded like Donald Duck getting kicked in the nads. I would like to build an spl box for it but after googling my fingers off I can't seem to find any box spec recommendations. I was hoping to find a simple slot port build or something because I am still a noob and don't quite understand the Qs's and the other mysterious letter number references on the tech sheets Any ideas or opinions would be appreciated. I prefer spl over sq.

Just to start off, I'm building this for the heck of it and recently picked up an inexpensive Memphis audio 15-ms84 to build a box around. This box might be placed in a car just to see what it will do but will stay mostly in the office. The pictures should give you an idea what I'm trying to do, and should show most of the specs of the box. Basically using an 8.25" x 1" slot port that is 23" in length with a tuning around 38 hz. The box volume is .59 f^3. The response curve seemed to have an nice flat-ish shape that hopefully will make it sound 'full' to the Fs. If I'm doing something completely wrong, please let me know - Gently please. Thanks John

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

Besides the obvious, what is the difference between front fire and down fire enclosures? Is it just a prefrence issue or is there a sound quality difference?

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I am going to build a box for 2 18 bls and was wondeing if it would be better to build a slot port design or a rounded port out of like pvc or something.

im looking to build a ported box for 2 12'' chaos .does anybody have any designs that would be easy to make? im putting it in 98 explorer so it can be a pretty decent size

Ok, so I float around a few different forums and everyone has something different on the subject. Could someone please explain port loading? Why would you want have the sub in different locations in relation to the port? (close, far, centered on the face, etc) For example lets say for arguments sake; lets just have the port and sub on the same plain on the box for this discussion. I'm always trying to learn things to help me make louder, better boxes for my customers. I figure understanding this phenomena will help. Thanks in advance

If you run the port externally, does it take up space or add to space inside the enclosure. Same idea as inverting your subs, they still take up space inside the enclosure, correct? Thanks

so i think i wanna make some new boxes for my 18" BTL's they sound great in the boxes there in right now but i think i can gain a little more output with some new better made boxes. right now there in a 2000 dodge caravan. the boxes are 8.756 cubes tuned around 32-33hz sub up port up. i have been told by a friend that also runs 2 15" btls in a caravan that sub up port up does not really gain the maximum potential out of the cabin. so i was thinking about making the new boxes sub up port back. what do you guys think about differant setups like sub up port back sub up port side sub back port up which one do yall think would be the best? and can any one explain what port off…

Got bored looking at the new sub in the cardboard box from Fi and then i though duck tape and all hell broke loose!!!!

first off here is my box: here are the plans i used to build it: 2.26cuft@34hz i have a 12" fi Q BP power off 1200 clean watts and it sounds great in the car but when i pop the trunk while the sub is playing there is this whistling and its really annoying... seems to happen worse on low notes... what is the cause, not enough port area? cuz i am pretty sure there is plenty of port for this sub ive already decided i'm building a new box eventually but this is an annoyance that i would like to avoid with my next build tia!!

A buddy of mine came to me the other day with 2 15s and wanted me to make a box that would fit in a 1999 Buick Park Ave. With a Height of only 14 inches its gowning to be a Wedge Enclosure. My ? is should i port the box in the front or in the back? The back seats do not fold down but in between the seats the arm rest folds down and gives a quick access hole that is 8 1/2 x 7 1/2 to the trunk. I was thinking of putting the port right there but im not shore. pic of trunk access hole http://memimage.cardomain.com/member_image...9377_5_full.jpg