SPL & SQ / Fabrication

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

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…

My question is, is it worth it to double up on 3/4" mdf on all sides, or should i just strengthen the side holding the sub? 18" Fi Bl--- p chamfer and flatwind 39"x18"x22" (sub is on 39x22 side) tuned to 34.4xxx hz any suggestions? thanks. also, this is a daily driver, not going to a termlab anytime soon, just want it to be a good, solid setup for daily driving.

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 am building a full system for a friend in her trailblazer and need a little guidance to make sure I'm on the right path. She listens to 90% country music and about 10% classic rock. She likes loud but nothing over the top. I pretty well have the front stage sorted. Deleting rear speakers. Have a pretty head unit picked out lol. Front stage amp is done. Which leaves me with the sub and enclosure. Previous set up she had was a single 10" kicker comp in a sealed enclosure on 300 watts in a trunk. What she did not like about it was the output was a little weak and it lacked the tight impact she was looking for. Her requirements are small footprint and $150 or less. I c…

Does anyone know anything about designing a bandpass box. I have a pair of 12 w6s in a ported box w 2 6 inch areo ports tuned to 44 hz and a jl 1000/1. I can do 143.4 db at a 48-50 hz tone. Im trying to get in the uper 140s without reaching the 2500-4000 watt amplifier range. Any help on design principals or general advise on how to get louder would be greatly appreciated.

What do they look like and are they good? i ask cause i have someone willing to build one in a trade for a DD2512...

what is the best battery for street A. 650cubic in or less. from what ive found the nsb75 kinetik hc2000 and powermaster d2700 seem to be at the top. what bettery is the best and how much better is it than the others. if anyone knows of another incredible battery im missing let me know.

Can someone check my work, to verify I am gaining maximum beneficial value from the bracing? From my understanding the bracing has two primary functions, other than structural support. To keep two panels from having the same resonate frequency, and to break up standing waves. Is there any adjustments I should make? Will I benefit from routeing the bracing edges round? Should I add a few randomly placed triangle braces? Remove the diagonals from the center brace? This is my first enclosure with matrix bracing, so I could have a big red flag in there and wouldn't know it. The enclosure is built for two SSA 15" Icons sealed, running 2000 watts total. The final …

Ok, I just want to know some of your guys experiences with t-nuts or huricain nuts, wich ones hold better? The screws I am using are not holding well in mdf so I need to get somthing stronger

Hey guys, Currently in the works of trying to figure out a box that will work with my Zv4. Here's some info: - Going in a 2000 f150 ext cab in place of the smaller rear seat.- Using my Saz-2000D amp- Sundown Zv4 12, suggested 2.25-2.75 cu ft- Wanting tuning around 30hz-32hz- Max Dem: W: 17 | D: 18 | H: 26 or so |- Would prefer sub to fire upwards.- I love rap music and bass heavy electronic similar to white clouds from decaf or lights from bassnectar. Here's my original box and design: http://imgur.com/a/WqOOl No sure how well it'll work and if there's enough port area. So here's another very similar box with a couple small changes that move me from 14.85 sq inch…

In the back of my escape there is little room, especially with the rear strut towers protruding about four inches out each side. The space I have to work with is as follows: 40" wide, 24" deep on top, 32" deep on the bottom. which comes out to be about 10 cubes. The height is what can move, although 18" is ideal. I'd like to keep the box rectangular but if I have to make the back slanted for space that's fine. I want the box to be ported but I have very little room. What type of port should I use and will this work for two 18's? Brand is yet to be determined, I'm still in the planning stage.

ive never done it before is it hard ive seen pics of people doing it but i dont really know what to do i think i need a video or tutorial i couldnt really find a good one most were for boxes i dont want to make a box and i need to know all what to buy the speakers are already mounted in my door i just want to cover up the ugly hole around it so just the speakers show

Any use this program to model stuff? If so, im too broke to pay for it

I am currently designing a box for a DD9512g which will be on a SAZ 2500D. I wanna tune to 36-37 Hz with about 2.5-2.6 net volume. My question is: What has greater potential increase of SPL. A lower port mach or more port area? Thanks!

I'm just wondering, being new to this forum. Who on here competes & who doesn't. Also, what sanctioning bodies are you all in? Also, any1 on here also on the CS&P forums?

So here goes... I have a 98' Mustang GT Convertible. I want bass in it. It Doesn't have to be anything outrageous.(though my Boyfriend said I should put 4 12's in it) I was wondering if yall had any ideas on what i could do? I Don't Really want it in the trunk though ,for one..trunk rattle really annoys me, and I like to see the woofer excursion. Second My trunk is sealed off from the cabin of my car.. My Boyfriend and someone else Mentioned to me That maybe a clam shell would work in the back of my car, If i took the backseat out. I'm not really sure if theirs any other possibilities that could go on..considering it is a convertible. If there is though, I am open for s…

Starting in March we will be starting our Thunder in the Park Series at the Colonial Village Fun Park. Stay tuned for more information.

I've been trying to find a 12 that would give me the best output for my 350z....so obviously I don't have a ton of space but I'm thinking 2.5 cubes before displacement. I don't know a lot about this stuff so I thought I would come on here and ask. I was either thinking a xcon or a sundown Z maybe or soundqubed to save some money. Any opinions on what I should do would be great. I forgot to mention that the amp is a older nine.1 which is about 1500 rms at 1ohm.

Well I went to my teams shop last weekend and decided I would do a little testing with my new setup. The equipment used is a 21in warden and SAZ 3500. The vehicle is a 97 blazer. Electrical is one yellow top under the hood one extra battery in the back and 2/0 welding cable. Box is a little over 9 cubes and tuned at 40 htz. If any one would like to give feedback on how to get it louder or just comments in general everything helps. Resized to 61% (was 1024 x 768) - Click image to enlarge Also that score is at the headrest because I am in Meca and the day after that score was done i hit a 149.6 I just didn't get a picture of that one but it can be proven if need be. Like I …

Please help, need enclosure ideas looking to break 150 while still being able to listen to music. I'm running a pioneer premier 3000.1 temporarily but will be changing over to hifonics cyclops. Any ideas would be helpful as i was debating a wall but am not sure what would be best. Have tried so many boxes that i'm tird of killing trees...PLEASE HELP!!! Thanks.

Where can I get Bassorcist tracks? I see people playing them all over youtube but I cannot find anything!

so i want to use 2 10" aero ports, sono tubes,... and i dont know how to find out how long they should be, i want to start off at 32hz, on a box that is 15.4cf or a box that is 16.6cf, i want to put the ports in side so do i have to subtract the area space of the tubes or just find the calculation with out taking out the area space of the tubes???

My setup is gonna be 1 Fi audio BL 15" dual 2 ohms. what should i tune my box to so i get maxim SPL!!!