SPL & SQ / Fabrication

Hello all, I have discovered I am going to have to build a new enclosure for my subwoofer to fit in the current vehicle I drive to work. The car is an early 80's sedan with a large but shallow(height) trunk and I do not really care if I have much space left over. I am pretty good at building things and have no problems making a pretty elaborate box, so my question is: In the trunk of a car like this what is the best enclosure to build without walling off the backseat? Any suggestions would be greatly appreciated! Thanks in advance, Mr_Jones

I want to build a box for my 2 12's. I want it to be ported but I'm having a really hard time finding a diagram or blue print. The recommended enclosure according to the website is .5 to 1 cu ft. Kinda confused as to what that means.

Alright, I am wanting to wait till i get a new vehicle to do a wall. (Still debating). I'd like to use two fifteens in my trunk, Thinking either AudioQue HDC3's, Fi BL's, or maybe some DC Level 4 XL's. A local shop said sealing a trunk on GM cars sounds like crap; Is this true? This would be the plan for my box Would this cause an audible noise or necessarily sound bad? I know it's install dependent but how do sealed trunks like THORSHAMMER's sound?

Needing recommendations on any and all used or heard systems with excellent SQ that have either personally blown you away or proved themselves in competition recently. Any info and opinion on the following are welcome with my proposed equipment in () Wiring thru KNU like always, damp pro like a pro, BIG 3, H/O alt if needed(pref not that much draw on a TL) and upgraded battery as install dictates. OEM integration - a must for this build sadly(360.2 by RF) sound processors (audio control, best model for needed corrections) component speakers - 2 sets F/B most likely fiberglassed to bring soundstage up (CDT, have loved every set I heard if installed right. Perfect for all s…

what did you guys you to build your ported box? i mean how did you figure out port length and tuning? what programs did you use or equations.

anyone?

This is going in an RX8. Looking for a fairly good ground pounder with the ability to upgrade to 4 SA8's in the near future. Not sure This design has enough port area. Don't do too many ported boxes and would like to make sure before I waste the time building. Will be powered by a Sundown 2000D. Link to pic of enclosure I had worked up.:

Hi, I am just about to start my build in my explorer and I have a few questions. I will be running Phoenix gold rsd 6.5 components in the front doors, Soundstream pcs.6.5 3 ways in the back. I have a kicker zx650.4 now the question is what is the difference between active/passive? and do I have the option to do the better sounding one? Also the subwoofer box I will be building I want to put the port inbetween the 2 subs but I don't know how to calculate it that way. Any info would be greatly appreciated.

I plan on competing SQ this year. I'm not sure on what pics I need for the presentation. Can somone give me some tips to get me started? Thanks

How do you find or know your vehicles peak frequency? And how much high or lower than that should you tune you box for spl applications? I drive a 06 silverado extended cab.

First off, hi...i just joined... I'm a complete audio noob... I'm looking to build a console/sub box for my 2007 Silverado... Its a reg cab with hardly any space behind the seats...so i want to take out my jump seat and build something... Here are the plans i sketched up... I basically want it to extend all the way to the dash... have a cup holder... and have the sub in the back, out of sight.... I will put a arm pad on top to rest my elbow... I'm not trying to beat this box out the frame or have a super loud setup.... I'm looking for looks/functionality/and bass to complete my setup...... Any criticism is appreciated....any thoughts or ideas let me know..... I don't k…

I would like to go with two jl audio 13 tw5 or two re audio sl12 http://www.audiojunkies.com/blog/646/res-n...nclosed-woofers http://mobile.jlaudio.com/products_subs_pa...php?page_id=245

What is a 4th order & 6th order Banpass ? anyone have a diagram ?

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

Howdy SSA. Haven't been on here in forever. OK so I am looking to create an interchangeable port system for my box. Here is the layout of the box: (Feel free to steal the design) Playing around with my little box designing sheet, I thought about making a system where I can remove an appx 7 inch section of the port wall and insert some custom made plugs to lower the volume of the box. This would be just to switch things around. Now does anyone have an idea of how i can create a moveable port wall? I thought about a slide-in design (a hole cut in the top of the box that would let me slide the wall down in like a dam wall) or maybe a system of rails. I'm just looking for so…

VanEQWizard Background noise floor fluctuates from 65dB to 78dB... pretty bad when nothing is playing! I can read these pics off PC but not from the threads so: 5.22% 300Hz sounded so much louder than 200Hz yet it was so much quieter... that is why KW likes a U shaped FR curve, more and more exaggerated as you get further from the middle 1.97% 1.97% 1.42% .844% .937% .253 .235 .235 .402 .217 .576 .229 .270 .259 .376 .208 .672 idk what happened .0343 IDKY but dist stopped showing here. I was clicking it though. couldnt even hear 18,000 so i stopped after it

Can anyone design me a box for two 15 inch subwoofers? Two 15 inch SHOK minis. I can go 16 inches tall, 36 inches wide and 18 inches deep. These right here. Thanks in advanced.

Vehicle : 2002 Toyota Avalon XLS Location in the vehicle: Trunk with rear armrest access port Space available (Length x Width x Height): 22"x42"x16" Subwoofer make and model: SSA XCON 12 D1 Number of Subwoofers: 1 for now. Type of Port (Kerfed, Slot, Aero, etc.): Kerfed would be optimal, Slot if not kerf. What type of music do you like?: Electronic, Drum n Bass, Classic Rock, Alternative, Rap, Hip-Hop, R&B. Is your goal SPL or Everyday Music?: Everyday Music geared towards SQ Tuning Freq (Hz): 28-30 or so Volume : 2.5-3.0 Questions: 1. I plan on only giving about 600-1200w by a Crescendo BC2000D, should I have the volume of the box be closer to 3.0 to maximize effici…

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

I have a non wall box for a 21 warden going in a 2 door blazer, I have two boxes saved as a design right now. Both are about 8cu after all displacements and have 120-130sq in of port. The box is set up for sub up port back. My question is, would having the port on the side vertically facing the hatch make any much difference then if the port was on the bottom running length wise horizontally facing the hatch. I know each vehicle is diff and theres no telling whats better, but figured maybe the way the air moved would be diff or somthing. Thanks for any help

Im pretty sure Ive seen this before. wondering how the port length is calculated. say the port opening is 3.75x13, Id assume when it splits Id make each continuance of the port 1.875x13. do I measure the length of the first part before it splits, and add to it the length of the part after the split to get the overall length. do I calculate the length as if I were running 2 1.875x13 ports, or a single 3.75x13 port. with the box volume and tuning I was using, they were very similar, 29.6 for one and 28.92 for the other scenario, so either one would end up close enough, but Id like the know the correct way. if either of these are correct.

Ok i need some more help trying to figger out how big to make my port, it is for two sa-15's on the saz-1500d .v2 in a 97 Blazer. The box will be 19H, 38W, and 26D, subs up and port back. But i wanna put the port on the bottom centered and i was going to make the port. 6H, 20W, and 19L, but that didnt give me enuff port area and i want it somewhere between 32 to 38 or so Hz. So if someone could please help me out it would be much appreciative thanks.

I've seen a few installes at some shows where they put a board/plexie over the subs/ports. Whats the purpose of this, and is there an advantage doing this?

alright guys.. what are some good ways to carpet ur boxes.. like techniques.. or whatever.. what matterials do i need to use besides carpet haha ..

I just finished my box for my fi btl and now I'm looking for something to cover it but not sure what yet. I've looked at CF and Carpet together (having the entire box black carpet with the fi bomb sticker as a cutout with CF over top) and thought about bed liner but I've never tired either and I'm not sue what would be the best look and if there are any more ideas out there throw them at me in open to anything.