SPL & SQ / Fabrication

Ok I have a few questions about the closure that I am designing. First is this a slot port design? Second do i need to throw some bracing in the inclosure or is it good as is? Third Have used various calculators to calculate port size for tuning is this correct? The box I have designed is 20"L x 48"W x 15"H puting the box at 5.3 without bracing. The subs will be facing the rear door and the port will be facing up on the back wall. Port will be 4"H x 20"W x 22.21"L. The port Vol is 1776.8 the port area is 80" square. Any and all help with this will be great Vehicle : 1999 Chevy Tahoe Location in the vehicle: Rear Space available (Length x Width x Height): (x)…

Hi guys, As the title says, i need a box for my sa-8 but i don't have an enclosure yet. I already saw this thread: But i wanted to get your opinion with this one: can you tell me which one is better? The only difference is the port area. The second one is bigger thus have a higher tuning. I listen to hip hop, rap music most of the time by the way. Any help/insight is appreciated. Thank you!

So the time has come to finally make my box as work has slowed down and my carpenter (father) has some time to help me get a enclosure made for my pair of RE SX 15's. My major dilemma here is that the opening for the trunk limits the size of the box to be rather small compared to the trunk size unless i do one of two things... Option 1, Build the box in 2 halves then screw together inside the vehicle. Other then volume taken up for the small 2 inch border around both halfs of the box i plan to connect them with, what other problems could the pose for the sound of the box? I'm able to get like 12 cubes into this trunk if i am able two to part this box... Option 2, Build th…

should i go to home depot, who has cheap but good stuff? and what kind of calk screws ETC.

Ok, so my front stage is composed of a pair of MLI 6.5's in the doors, and a pair of Fostex FF85k's (3" full range) in the dash. What I am wanting to discuss is windshield reflections. Where my head is normally is a slightly nasty reflection point, not sure how this relates to phasing issues, reflections, and off axis response. I noticed this awhile ago when reaching for something across my car while listening to a CD and noticing the change as I moved my head across the car. The MLI's and Fostex's are crossed over at ~400hz with the amplifiers onboard crossovers due to the fact my DCX bit the dust. The amps that are being used are a PPI 4240 and a RF 450.2 Thoughts …

Okay, Im not much of a box-builder. Nor do I know any of the concepts to box-building. I was wondering for my MAW-15's, Which I'm putting in a 4.0 ^3cu. ft. box sealed, When I get the box built does it need to be two independent chambers with 2 cu ft on each side or 1 big 4 cu ft. box. I wasn't sure what if that had an effect on the subs and/or their performance. Thanks in advance. ~MadroX

Ok I had to do an l-port and It is 6"H so I marked all the way around the L at 3" in the middle and from front around I have got 22" but all the box calculated says phical port it 16" so is my port 22" or 16"?

I am going to build a box for 2 18 bls and was wondeing if it would be better to build a slot port design or a rounded port out of like pvc or something.

I'm going to build a box just want to know were to buy mdf

hey, i know im a little premature since im still looking for a vehicle to build up , but where can i get a small sheet of plexi to etch for a custom logo? So far ive got most of it planned out. Ive got a pioneer HU, a damn near industructible class D amp thats stable to 1 ohm. Since i took all the stuff out of the X i just need to find another vehicle to put it in, and I plan on building a custom enclosure when i get the car/truck and decide on a subwoofer, right now leaning to one of adire audio's product line. Who know's , maybe once im done i'll even grace the local car show with my presence But for now im still in the planning stages. Could i order plexi online…

How does this look for a box plan. I am looking at going ahead and buying a 21in DP since I have plenty of airspace to work with. I also wanted as much cone area as possible that would be ok powered by my Saz-1500v.2. This would replace the rear seats in my 07 F250 and would be at window line. Goal is to hammer the lows, get loud as piss and sound good doing it. Will this work or should I change anything. Sub / Port will be facing forward. Around 10cu tuned at 30hz I got no responses in the IA section so it may be better suited here.

I've got some complicated problems. Ok I'll just start with the maximum enclosure Size/Subwoofer Recommendations and we'll go from there. Anything marked with a * is a question/possible problem, please check these spots out. Woofer Recommends This: 2-2.5 Cubic Ft Per Woofer 50" Squared Port Area - 79" Squared Port Area Depending on Box Size. I would like to tune to 33 Hz I think that will sound good?* Enclosure Maximum size and WHY: 36" Exterior Width 30" Exterior Height 14" Exterior Depth Woofer Direction: Subwoofers mounted on top. Port Direction:* There is a door on one end of the enclosure and a seat on the other other end of the enclosure, there is a seat behind the …

Alright.. So I thought the first time Id be going to be metered was gonna be in July at my first dbdrag competition.. BUT, my local car audio shop is having a grand re-opening with spl meter readings.. Prizes are being given but its more for fun, I really need to get going and run this 0 gauge and install my 2nd battery, iv only got 4 days! Anyways, just wondering if there are 'general' rules to get the best number out of your car. Im running a trunk car, already know my cars peak which helps. Iv heard things like keeping your seats all the way forward helps.. ect. Im sure its different for every car, but I want to show my best at my first time on the meter.

is there a meter that costs like $150 instead of just stepping up to this. i dont need it to be that accurate i just want a round about number ... need something that can measure around 155 db (just to be safe lol)

so my RL-i 10 has arrived, now i'm waiting on the amp. my 1st question is this. would putting the driver on the back side of the truck box be a bad thing? i know to allow for excursion clearance, but it would still be pretty close to the back wall of the cab (regular cab ranger btw). would there be some adverse effects from the air the sub is pushing not escaping away from the sub fast enough? here is a crude 1 minute drawing. i was thinking if it would be alright to face backwards; i would extend the sides of the box to act as a separator between the box and cab. i've seen boxes like this before, but they were facing the front to give separation from the seat. this n…

Ok my buddy has 2 Audiobahn Flame Series AW1251T 12

alright ive came to the conclusion that with school and measly allowance i dont have the time or money to get into the really competitive comps, but i remeber hearing that some compitions have std size truck divisions if thats true how is that division broken up? if there is such a division im going to try and be running 2 SS rl-i8 around 800 watts rms (if youve seen my newb sign in you know why i have to try). do comps break down divisions by power number of speakers size of speakers....thanks sorry according to my eng4 teacher i have horrible paragraph structure and sentence flowing skills

I have a recording studio and have folded horn pa subs and is the loudest and cleanest of all the pa designs. I was wondering if anyone has made a folded horn sub for a car (I've never seen one but maybe I'm ignorant) and the pros and cons. Thanks

If I were using the RE enclosure calculator, do I need to take into account the speakers displacement for the tuning? Should I tune about 1-2 hz below my desired tune hz? Any input would be greatly appreciated. Also does anyone know what a Kicker L7 would like the box tuned to? Thanks!

Is there any audible difference between using a enclosure that's using a (sub forward, port forward) and a (sub up, port forward) enclosure. I'm thinking of several options for my first system

http://www.youtube.com/user/IHUNTEI2?feature=mhee#p/u/1/MOBX7dNh6wA how does this look for a 6th order design?

I have always been a sealed box guy,so I have NO idea how to tune a box. That being said,how much port do I need in a 1.25ft box with DCON 10????? Will be for daily use playing mostly rock/metal. I was thinking 40-45hz maybe? Please correct me if I'm thinking wrong.

hey i am tryin to get a mirror like finish with paint how can i do that ? what kinda paint do i need ? any suggestions im starting with mdf

If I have a box that is 36" wide by 22" deep by 24" tall how big would I want my port for tuning it to 32hz? Its for an 18" n2

Hard to explain. Currently i have the standard single fifteen ported to the back, sub and port rear facing. I have a 03 maxima, and would be interested in sealing this to the interior of the car and firing the sub forward, with the port firing up through the rear deck into the rear window. I did something similar in my last max but still had the sub firing up. I sat i a car with two orion hccas sealed to the rear seat and ported finging up through rear deck, and NEED THAT. Anyone up to the task?