SPL & SQ / Fabrication

Hi, I am getting ready to switch my system from my firebird to my truck, so I can sell the car.. It's going in a 99 s10 ext. cab xtreme.. I have 1 12" pioneer premier 3002d4, It's in a sealed box now, but I want to build a ported one for it. I will be using a precision power 1500 amp at 2 ohms, so roughly 1000 watts to it. I know how to do the wood work, but I am not near as good with calculations.lol. A good slot port box design wood help a lot, if anyone has the time. I would like it to be tuned to 34hz, with 1.7 cu without the sub. For room in the back of the truck I have 14 1/2"x18 1/2"x50".. I know thats more than enough, but thats the total space I have. Also, wh…

Port around 1cubes per chamber. Tuned around 33hz Sealed around .75cubes per chamber Thanks! For 10"

okay these dimenions that i have for this sub box say the front and the top are the same okay thats where i get confused with it because i thought the top was the top of the sub box and the front where the ports at is the front not the other way around. 2cubes35hz2925sqin6tn.png i hope that the picture worked because i do not know how to put them on here if it doesn't work just tell me. because this is really confusing me really really bad.....

I was checking out the parameters for the icon and the aa havoc. They're pretty close spec wise. So would using the the pre made box plans work for the havoc? From my calculations its 30-32hz tuning.

I've posted this on some other places and I'm trying to get some feedback..I've ran into a dilemma. I don't know if I should carpet my door panels or if I should just go ahead and paint them. I have quite a bit of black carpet lying around and I think paint wouldn't be as durable since door panels can flex from every day use and it's kind of tedious prepping plastic for paint. Four 6.5's in each door. passenger side:

Looking for ideas based on experience! My shop has a 1998 Chevy extended cab being used for SPL competing in USACI Modified. We will be using four AddictiveAudio V4 15" woofers with roughly 12,000 watts rms. My question is how should the enclosure be built for max spl? Just looking for ideas here.. we are stuck at 157.6 db on the term-lab at drivers kickpanel.

Hope everyone had a happy and safe holiday. Alright, I want to upgrade my front stage and would like some help with speaker placement, setup, installations and whatever else you guys suggest. Check my signature for the setup I currently have. I have a lot of time before I get everything and install because I'm in Afghanistan right now. So basically I want to improve on my overall sq because my speakers are lacking in the midbass area and want to change my setup and I guess try to go active and really experience a real sq system. I'm not trying to go all out in the sq area but I want to do a 3way setup and just upgrade my setup. Any help would be greatly appreciated. Than…

Hi It just got to my head that I should probably get rid of the box I have and make one myself. The one I have was bought from a shop and I dont even know what it is tuned to or the cubic foot. From the outter measurements, Im calculating 1.75-1.80 cubic foot. Here are the measurements of the current box I have my Pioneer TS-W3002D4 Well, basically I want my own box so that I know the exact tuning and size. First, I would like to know if its good to have a 12" tunned to 32Hz since thats what I want to have my box tuned at. 32Hz with ~1.80cubic foot AFTER subwoofer displacement. I would prefer to have subwoofer AND port facing the same way and box measurements ~15-16inche…

Supp' SSA!! I am looking to build a higher tuned box for my 2 15" Fi Audio Q's. ( I know they are not made for spl) just for fun... I do 148.1db @ 45hz (30hz tunning) but looking to see what higher tunning will do. For some reason i always peak at 43-45 hz with diferent boxes/tunning and a friend also peaks at 45hz with diferent boxes on 2 12's. Is it the Tahoe's peak or something?. Both are 01/02 Chevy Tahoe's. If i tune a box to 43-45hz will it help because of what i peak at ? Thanks for the input.

So i was metered today and this is what i got... 144.6 Outlaw under the floor @ 39hz and an oddity i scored 145 @ 39hz legal on the windshield The shop i was at thought it was quite odd that i was hitting higher in legal than i was outlaw. 15 fi bl on a saz-3000d @ 2 ohm

http://www.partsexpress.com/pe/pshowdetl.c...=25&rak=390-802

hi, i am new to the whole db drag thing? if thats even what it is called. how does these competitions work? i would imagine who ever had the most money would win... i mean its not like you can run and make your system louder or anything so since it is all just bought how is there a rightful winner if people just drop thousands and thousands of dollars? sorry it might sound stupid but i really dont understand.. vocab might help me too! thanks

I am designing a custom box I want tuned at 32 hz and I am not sure if I am using these online calculators correctly. I enter my box volume and height and width of the port and it gives me the length i need to make it... my question is what is my box volume? It is with or without the port??? My box is all completly designed and ready except for the port length because I am not sure how to get my desired frequency. Here is my current box. Height= 15 inches Width= 17 inches Depth= 20 inches (I might lower depending on how much I need for port) Port height = 13.5 inches Port width = 2 inches if this enclosure was SEALED, its total volume = 2.24 cubic feet, i was aiming more …

want good LSQ setup one si bm 12

Gains will be set low (to start off, i realize hifonics isn't top of the line, but it'll do the job well even if it is overrated).. so any suggestions on a good wiring kit to buy?

I'm starting a box for my new 12 this weekend. Using a 6" aero for this one. Most of my boxes in the past have been sealed or slot port. Was shooting for 1.75cf3 after displacements and a tune in the low 30's. I'm limited in depth (~14") but had plenty of width (~56"). I came up with this design. It's long and shallow, similar to a truck box I built a long time ago albeit smaller. Concerns: The length to height/depth ratio. Would it matter? The distance between the sub and port inlet. It is currently ~4" from port to the closest edge of the sub tuned at 30hz. I can move it in more, each 2" decrease in length equates to about 1hz. Just concerned about unloading. Maybe it w…

Ok, I will be googling how to do fiberglass work soon enough....but i just wanted a general concensus of about how tough it can be....I want to build a L type sealed enclosure going from the floor in the back seat of a friends truck and into the center portion of his seat. I would like to do it in fiberglass and just wanted a general idea of about how much work i am in for. Is it okay to have like 90% of the enclosure to be mdf? I just need the top portion to be fiberglass so i can angle the subs to where i want them to point. Also, it is okay for 2 subs to be in a common chamber isnt it? I thought it was, just wanna make sure. Thank You

This is what i have came up with, i have the wood, tools, and these are the specs I found most best for the sub and is wondering if this would work prime with the AA mayhem single 12" dual voice coil. http://imageshack.us/a/img22/3130/subspecs.jpg

in the quest for possibly the best SQ to our ears, proper install would always be needed, proper positioning and aiming etc... but on the midbass install part on doors, sometimes we feel something still is lacking... even though we have done all the possible deadening etc needed. and ending up in trying to fit an 8" on the doors. modifying the door moldings and cutting through the metal sheet... Question is... is it worth it? destroying some parts the your car used as daily driven just for the midbass sound were looking for?

who let Joe in? I SAID WHO LET JOE IN?!?! YOU KNOW, Joe from CIA Engineering? Why you guys chasing all my sponsors down and making come to my hiding place? Hope you enjoy your stay here Joe. Might not be the biggest forum around, but the knowledge here and the people wanting to learn is strong here. Shane

I remember reading somewhere about the relationship between a box's port area and potential output. The reason i ask is i have been looking at the IXL drivers from Mach 5 and in order to tune low in such small boxes the port needs to be quite large in order to avoid port noise. I was looking at a 2cf box with a fairly large port (roughly 50 inches) my question is will such a large port casue a loss in output? i was looking at tuning at 30Hz for a daily setup that would hammer out the lows. Is there a general rule of thumb regarding port size compaired with box volume? Could someone point me in the right direction (i haved tried to search) I was hoping some of the experie…

this is my first time tooling around with winisd. my fi sp4 should be here any day and i'd like to make sure my box design is okay or if i should tweak it. ive seen port velocity used frequently around here and i was wondering how i can determine port velocity. is it for aeroports only or can port velocity be determined in a L slot port? can someone explain how to find out the port velocity for a L port. and before people start saying, yes i did search around a while on the forum and google and couldnt come up with the answer. thanks!

Alright.. im kicking around the idea in my head to purchase a crescendo 3kwp to use with my 18" BTL (d2) .. when i had my box built for me he wanted to know what size amp i was going to use.. i told him the sundown 1500 (which is hooked up right now) ..he made the box on the larger side, i dont know exactly what the cu ft is.. thing i dont know is, should I do a new box up if i decide to throw a 3kw on it? Does my box size play a big role on the amount of power i feed my sub? Whipping up a new box will be a pain in the ass lol.. but if i go dump the money into a new amp then re building isnt gonna kill me. Im pretty sure I can answer this already.. i have a feeling the s…

Hey guys i would fist off like to say thank you for the big 3 help. i have all the parts but the wire and am getting ready to start it, The subs i will be getting will be two 10 inch FI SSDs with cooling, and amp i am not sure yet but might go with a new crescendo amp SSA now sells. also getting a second battery down the road. Well the question is do i port the box or not? I have the space to do it and i was going to do the port out of the top of the question is what do i do inside the box here is what its going to look like and it will be the same on the other side too. any help will be great

I just need the basic rundown, what kind of materials, (do I just go to Homedepot and ask for resin??) how to apply it?? thanks!