SPL & SQ / Fabrication

I recently found my Visonik 12" woofer and i decided to build a box for it. I have ~$120 for supplies so nothing elaborate. My plan is a little under 4cuft (before displacement) tuned at ~26hz. I would like to use aero ports. The woofer is rated at 250rms, but handled 400rms from my RF200.2 like a champ. I have ~140wrms of clean power to play with, from my HT amp (Samsung HT in a box, very nice system for $220, on sale) I am switching it out for the current woofer, the 8" that is currently in the corner. My parents always turn the sub level way down when they watch movies (frustrating lol) So its mostly for my chopped and screwed music, that i can't fit on my iPod shuffle…

Hey guys this is my first post! Seems like a great forum with knowledgeable members, so anyways... What is the best stuff to seal an enclosure with? Silicone? Caulking? Which type?

I plan on doing some dynamat here soon, would it be worth also filling my panels and/or doors with polyfil? What effects will it have?

Vehicle : 2003 VW Passat Location in the vehicle: Trunk Space available (Length x Width x Height): w1- 39, w2-42, h1-15.5, h2-19.5, d-25 Subwoofer make and model: Custom, similiar to the Sundown X but more motor force, excursion and lower fs Subwoofer Size:12 Number of Subwoofers:2 Type of Port (Kerfed, Slot, Aero, etc.): Up for suggestions but thinking about aero to save space What type of music do you like?: Chopped and screwed, decafs low stuff (about 18-35hz) Is your goal SPL or Everyday Music?: Everyday Tuning Freq (Hz): To be determined - probably around 26 Volume : 5-7 cubes depending on tuning, port and bracing. Questions: I want to first start out saying I blew m…

ok im making my first attempt at a custom box. its for 1 sd12 in the trunk of a honda accord planing on sub facing back and ports facing up to go through the rear deck. plywood (no mdf at local building store) 3/4 inch depth 18" w 20" h 14" port (1) L 12" dia.3 if my calculations are right box is 2.21 ft3 tuned to 34.15 sub displacement is .10 so that should net me a 2.11ft3 box (damn i hate math) am i anywhere close? or even headed in the right direction? any input would be great cause right now its in a cookie cutter Q-logic box (1.5 ported and its starving for air) thanks guys and gals

I am looking for some songs with very good LOW bass notes. The best I have so far are: 24 23 by Trae (and by jeezy, there are two versions), Dopeman by OJ Da Juiceman and In Tha Hood by Trae. Preferably not chopped and screwed (or slowed), as I can do that myself if needed. Thanks, --Chris

Hey gusy, im about to start the box build for my sa-12 and im just looking for a little help since its going to be my first real box build. I've came up with a design, but i used the RE box calculator to do so,which i've heard isn't all the accurate, so i was just wondering if someone could check the numbers for me. Heres the dimensions- 24" wide by 14" tall by 15" deep. the port is 2" wide with a length of 16". RE says that the box is 1.72 cubes at 32.8hz with 25in of port. Anybody willing to check this for me? Thanks

Hey all.I was wondering if my port is to close to my rear hatch.My friends and I both seem to think my system should be louder and I seem to think that it might be my port being to close to my rear hatch and not having enough room to breathe.My system consists of a DC 5k and 4 10" DC lvl 3 m2 subs with the level 4 upgrades.My enclosure was made by DC Creations and is 4.5 cubes after displacments (I believe) and tuned to 33hz.Here is a pic of what im talking about with the port.I can take a better pic if need be.So what im wondering is if I flip the box around with the port facing into the cabin instead of towards the hatch,would it help out any or would a enclosure with s…

What do you guys think of this design? The huge ported section will be roughly 50 width, 36 Height, and 36 length all the way up to the back of my front seats. The sealed section in the trunk will have roughly 1.5-2 cubes per sub with the ported having over 30 cubes hopefully Give me your opinions of this design please Thanks http://img573.imageshack.us/img573/9628/boxdesign3.png http://img341.imageshack.us/img341/570/boxdesign.png http://img29.imageshack.us/img29/7765/boxdesign2.png does that make sense?

I want to build a sealed box behind the back seat of my 08 Dakota Crew Cab. There is VERY little space back there, to the point that to get my airspace, I need to get rid of the back wall of the box. My idea is to use some damplifier pro or spectru sludge on the cab wall to create the back wall of the enclosure. Am I on the right track? Or is there a better way to do this. This is the only location I can use, due to restrictions from my wife. Thanks Rob

Any thing I should know or be wary of? 5 1/2" blade? 7 1/2"? Corded? Cordless?

here we go Here you go. more to come Later

I've recently wanted to start making a horn style box, I've build one on accident before, but didnt know it was a horn box. Now im just needing some advice or basic tips on building and tuning of them.

What i want is the box to be smooth, without being able to see the screws so i can paint the box and have it look very smooth. I have to ways im thinking of going about this. 1- This is the one i feel as the better of the two....sink the screws a little further into the mdf and put a filler then sand it smooth or 2- After the box glue has dried take the screw out then use a filler and sand? Is there any reason for the screws to stay in the wood or can i take them back out? Thanks, Jack3d

When using a PR in place of a port, you would keep the same internal box volume as the equivalent ported enclosure, correct?

http://www.woofersetc.com/index.cfm?fuseac...Product_ID=3637 or because the specs of the tc-7 are here http://tcsounds.com/tc7.htm http://www.woofersetc.com/index.cfm?fuseac...Product_ID=4450 this would work for the large ported box under low extension so pretty much the first ported at 1cu a chamber the obcon in the picture at 1.4 a chamber or the large ported for 1.7 a chamber which would give me low extention i waned 12's but they would be to big for my hatch. i listen to rap and have a small 2002 civic si hachback. and i want a quality system, but the thing is that because these are 10's i am afraid they wont get loud enough the power will be from this Hifonics BXi …

I'm redoing my box for 3-10" (or 3-12" not sure yet). Now currently my port is down low facing the dash. The current box is a TON louder with all the windows down vs up. I know this is normal sometime, but I don't like driving around disturbing everyone with them down, lol. So I was wondering if moving the port would help or make a difference? Port up with the subs, port back towards the back wall of the truck, or try it again with the new box faceing towards the dash again? Just an idea of what it looks like at this time. You can see the "box" at the bottom. It's an "semi-external" with 8" outside & 4" inside to save some space.

ok ill give a quick run down of what i would like to do.. i would like to build an upside down L box.. with the slot port going into my cabin.. and my subs on the long part of the L inverted. to save space and show off motor... here is a pic of my trunk. the top part is is 10 tall... 19 deep and 41 wide. from the floor to the step level is 14 and from the floor to the top lip is 26 and i want to port thru the rear deck ill cut this all away i know its kinda hard to picture what im talkin about... ill come up with some sketches of what i would like.. but im wondering WILL IT WORK!!> i need some where around 3 cubes and tuned to 30htz thanks guys, ps. not…

So I am stuck, cannot decide what to do or which direction to even go at this point, need some assistance and I will try to make this short as to avoid the TLDR syndrome. To start off here is what I have currently in the vehicle (a 2009 Honda Fit), (2) Sundown SA 12’s wired to 1ohm on a SAZ1500D. They currently sit in a ported box that is 20”Hx31”Wx16”D, with (3) 4” aero ports 12” long, yielding a box of 4cuft net, tuned at 38Hz subs up port back. While this has been the loudest box I have built, it’s not the only one. I built another 17”x39.5”x16” with (1) 6” aero port tuned at 34Hz sub/port up, and finally another with the same dimensions however this last one was a slo…

i just finished my 5 CuFt box for my fi bl 15 and i used just about every square inch of my MDF wood i had for the box. my question is if its ok to use 3/4 inch plywood for my second baffle? i have a bunch lying around and would be nice instead of buying a huge sheet of MDF i would barely use. lemme know what u guys think! Thanks!!

Ok I've been doing a lot of research on standard 6th order bandpass boxes, and haven't found enough information to decide if its better than standard ported for spl. If I tune a 6th order with a very narrow high output passband, such as 39hz rear and 44hz front, or in this general region, will it be louder than a ported box with a similar tuning? From what I've seen the 6th order will boost output higher, but it strains the subwoofer more and lowers power handling, so it has more output but you can put less power to it so they balance out... I want to try one out but if you guys think it wont be louder than just ported for spl use only then it's not worth trying. Also I…

I need a ported sub box to around 33 Hz for an xcon .. I have 12.5 H x 32 W x 14 D to work with. I have a metal brace on the floor of my car that I need to work around. I've hit up ram design and he said he was to busy at the time , Dave the box guy never replied back .. and all the audio shop stores I go to say they can build it but the lowest tuning they can do is 60 Hz wich is bullshit. any help is greatly appreciated

i would like to congradulate chris and rick for going to finals. and placing 10th in the world for ss1-2. it's good to see someone from up here to actually make it. now lets see what they are going to do next year. saggs

for thoes who have compeated in iasca or usac sq the question i have is where should the center of the stage be in the car. my personal prefrence is center of the steering wheel. i want to know if it should be right in front of you in front of the steering wheel or the center of the dash as you would need to look at the middle of the dash to imagin thats where the voices are coming from. which is the correct answer for competition i am runing 3way active and have time alignment to play with

some people know that I want to switch my blazer over to sq after I get a car for bass race/db drag so here is what I have so far let me know what you think mids amp (2ohms) http://www.woofersetc.com/p6743/PCX2125--P...t-Amplifier.htm tweeter amp (2ohms) http://www.woofersetc.com/p6743/PCX2125--P...t-Amplifier.htm sub amp (at 1.5ohms) http://ampguts.realmofexcursion.com/DD_Z1/ head unit ( I have just wanted to try it) http://www.woofersetc.com/p6576/CD7200-mkI...CD-receiver.htm mids for dash http://www.woofersetc.com/p1564/ES400--CDT...;-Midranges.htm mids for door http://www.woofersetc.com/p1566/ES600--CDT...;-Midranges.htm tweeters (a pillar mounted) http://www.wooferse…