SPL & SQ / Fabrication

I haven't had much experience with the science behind port tuning/building, but I've been doing a little research and some calculations and have a question concerning port "size". Let's say I have a 1 cu.ft box, and I want to put a aero port in it with a tuning of about 33hz. I used a calculator and I came up with a 2" diameter port with a length of 6.3 inches.. or a 3" port with a length of 15+ inches.. My question is, what's the difference in having the 2" short port as opposed to the 3" long port and achieving the same tuning? To me it would just seem logical to go with the small and short port to save space and material, and just be an overall convenience.. but this i…

Im going to have a custom box made soon and was wondering what is the difference between a slot port and a kerffed style port? Well there be any difference in bass?

Got a new car and want to run the single biggest FI BTL NEO I can fit. I have measured my trunk and I have 32x32x18 to work with, the car is a 2012 chevy cruze LTZ. My question is, about how big of a box I can use. I'm thinking I could possibly fit 1 15" at 4-5 cubes but I'm no box builder. I would love to run 1 18" inch but the btl requires 6-8 cubic foot so I doubt it would fit.

Wondering if anybody has seen the cargo area walled ? I don't want to lose my back seats in my Tahoe. I am wondering if 4 15" SSA DCON's walled in the cargo area would do some good hair tricks ? Thanks for any input !!

i have noticed a desterbing trend on every forum... when someone post about : Loud SPL or anything bigger than a 10" sub the SQ sharks come out in force and rain on our good time. but GOD forbidd i rant on one of there rich boy toys *cough JL audio cough* can we have a lil less nagging from the SQ bunch PLEASE??? how would they like it if i/we go into there threads and NON STOP SLAMM them for having over priced underpowered subs & whatever ??? cant we all just accept that everyone has a different point of view as to what sounds good

I currently drive a 2006 galant and i have been having trouble with getting upper bass( about 50hz and up) out of any setups i have ran. Any where above i say about 50hz is extrememly quiet, while anything below is gets low & loud, .... Set-ups i have ran include: 1. (2) infinity reference 12's -kenwood 9103d @ about 500 R.M.S. - 1.25 Sealed each before sub displacement - rear firing 2. (4) Pioneer Champion Series Tsw-304 - Kenwood 9103d @ 1ohm - about 800-900 R.M.S - about 1.1 sealed each after displacement and bracing - up firing sealed enclosure Current & temporary setup: (1) Kicker Cvr 15 - Audiop…

Hi all,has anyone built these ports and where can i get the formula to calculate the area and cutting angles please

As the topic says I am looking for any and all tips to improve my SPL. After some REAL quick testing that I'm not to sure was accurate. I was told I was doing a 143.5 Legal @ 32Hz. I believe the 32Hz part, but I'm not to sure about the numbers. So any tips, tricks, or ideas you have. Throw them my way. oh and BTW I know I need more power. I'm working on that detail:

so im gonna go active again.. im going to use the new sundown neopro8's head unit us going to be a Pioneer FH P8800BT not the bestfor active but its what i have. amp is sundown 100.4 v1 so im open on tweeters... i used these https://www.madisound.com/store/product_info.php?cPath=45_229_324&products_id=1466 last time.. they were decent, and small... and i could mouth them with out alot of custom work or cuttin a 3 inch hole! but im open to seeing what advice is giving. i also wanted to ask a few questions. last time i went active i bought 3 sets of tweeters before i got dialed... i would LOVE not to do that this time. so would these help me stay out of rang…

In my 2003 tacoma single cab and bench seats doubtful i can get two tens ported. Car audio dealer told me it wouldnt sound good with ports on side of box. So am think of one ten ported or two sealed

I've never built a box before so here go. Starting the build tomorrow, are there any changes I need to make?

For the Crown Vic.Town Car 4.6 Now the Exp.Navi 5.4 Im a bit confused on what they did exactly. maybe someone can explain it better. says its from an 08 navi, but alot the bolts should be the same.

I have an RE Audio SX 18. I've heard rumors that this sub can do 2,000 watts RMS fairly easily in the right box. I currently have about 500 watts going to this sub in a 10ft^3 box tuned at around 30 Hz. It's pretty loud. I got pulled over a few days ago for having my music too loud and the officer said "Dude, you were shaking my car, what do you have back there?" Got off without a ticket . I wanted to step it up a notch so I just ordered a Hifonics Brutus BRZ1700.1D. Which does 1700 RMS @ 1 ohm. I designed a box with a net volume of 7.19ft^3 tuned to exactly 34 Hz. Sub up, port back. (My old box was sub back, port back.) For the record, this is going in a 2006 Expedition.…

I would Love to hear from a few people that have used Luxury liner pro. I have 4 sheets of LLP. I bought the LLP with the plans of installing on the front floors and under the front door panels. If I have any left I plan on the front of the rear wheel wells. The box will be forward firing with the trunck sealed off. I have already dampenered the inside of the car. My goals are to lower the highway road noise and just to lower the noise floor of the car. I realize every application is differant but would like to hear what results and experiences some people have had with the LLP. I have used the search function with no luck and also went to the SS forum but them guys a…

Here is the start of the kicks built by ramos himself. dont mind the hanging wires lol i dont know where that came from

I need helping figuring out how to go about getting 6.5s in the doors of my 86 GMC Sonoma. As some of you might know that S Series trucks (S15s and S10s) around that year didn't come with door speakers from the factory, only dash and back panels. I never fiberglassed before so if possible i would like to stay away from that.. but if i must i will take on the challenge, if i could get away with just putting a sheet of MDF on the door and cut holes for my 6.5s that would be great.. but i don't think there is enough space between the door and where the MDF would sit because there was no speaker in before hand so GMC didn't give it the room for speakers so somehow i have to m…

I THINK ITS A REAL SHAME THAT TEXAS BASS PRODUCTION GIVES ITS PLAYERS A FALSE SENSE OF SECURITY MAKING THEM THINK THEY ARE BETTER THAN THEY REALLY ARE BECAUSE IF THEY WERE TO GO TO A USACI OR IASCA EVENT THEY WOULD HAVE THEIR ASS HANDED TO THEM BY THE HEAVY HITTERS AND LORD BACCUS IF YOU WANT A RING GO TO SOUTH PADRE AND EARN ONE... CHEF

OK, So I recently aquired a 1996 jeep grand cherokee and am in the planning phase of the project. I am looking at running a 3:1 ratio 4th order with either 4 15" or 18" drivers. The issue I am running into is that I am concerned that the box height will end up too low to mount the drivers on a flat baffle. With this being said I was wondering if anyone has toyed around with angled baffles. With this setup I was going to do a driver's side port and tune around 45-50hz. Would this be too much of a hassle and prove to be a nightmare, or should I try to use a more upward firing baffle to fit the 4 drivers (similar to watt's truck but larger and drivers stacked in a 2x2 …

Hello. I've got a BTL 12, the new model, with the spl gap, short coil and cooling and I'm looking for some ideas on a box volume I can use for burps and keep it mechanically safe. I had an old 1.3cf box laying around so I used that for some quick testing. The highest score with all testing was only 147dB on 3600w clamped watts. The actual power to the woofer will be a bit over 4000w once I get good battery. The goal is to score 150dB out of this single 12 and the small box is 3dB short. This is how the 1.3cf box looked at the end of the testing: I also tried all combinations of sub / port facing except both of them back. A max volume suggestion would be useful as I …

I was designing a SPL box for 2 10's but i was seeing in other box's a triangle down in the port here is a image of my design. is this correcto or do not is very efective in spl designs? is for 2 10" it have 2.33ft3 with the woofer, port & 45's displacement, the triangle is not contemplated in the displacement. i hope you can help me

I'm looking for two tens to put under my back seat, can anyone give me suggestions on subs and who makes a good box for my 2010 silverado. I would like good SQ.

I currently use DIY interconnects in the form of a twisted pair with drain wire terminated with soldered RCA ends. This has worked very well for my current setup and has been fairly cheap. Although, the twisted pair is more likely used for a balanced signal then an unbalanced signal (all my runs are unbalanced). I have been researching various interconnect methods and their craziness. I have noted form numerous sources that coaxial interconnects are better suited for unbalanced signals. From what I gathered, using coaxial cable in the vehicle environment can be expensive and difficult. The difficulties arise with inflexible cabling and long RCA ends. I can image the troub…

I want you guys to post things here such as materials and bracing methods used to create the stiffest, non-flex box out there and how it's done. I'm tryin to find some materials so when i go to tear down my wall that i have something to fall back on. I've came across this but the comments are up in the air... Some competitors say it's good... others who haven't used it say it won't hold up... Durock... I had visioned on using 5 layers of 5\16" thick in between 2 layers of 0.75" MDF = approximately 3" thick total material. Then cross brace it with - 0.75" all-thread. Now, i'm looking for the stiffest out there... I had read to pour resin in, on and around each Durock lay…

Tomorrow is 21 days from my order date for the subs. I am trying to get everything ready as I am hoping the subs will ship soon. Thanks for the help The list: Vehicle : 1999 Chevy Tahoe (4 door) Location in the vehicle: Cargo area Space available (Length x Width x Height): 30" x 48" x 21 " Subwoofer make and model: SSA DCON 12 (x3) Subwoofer Size: 12" Number of Subwoofers: 3 Type of Port (Kerfed, Slot, Aero, etc.): slot What type of music do you like?: all kinds (rap,dubstep,country,rock) Is your goal SPL or Everyday Music?: everyday Tuning Freq (Hz): …

Who has a box design already made that can fit 3 skar audio vvx 8s? I'm new to box building so don't know how to design one on my own looking for something someone has already design. Please any help will be appreciate it. It would be going into a 2000 Acura Integra ls. From some research I've done of maybe how big I want the box is hieght 14", width 28", and depth 18". Tuned to 32hz.