SPL & SQ / Fabrication

3.7 cubes after port displacement with 48 square inches of port vs 3.2 cubes after port displacement with 56 square inches of port. Fi SSD 15" I know it probably wouldn't be a huge difference but which would get louder? In one you sacrifice air space but gain port space and the other you gain air space but sacrifice port space. So what I'm trying to say is which is more important when figuring loudness?

have an 18" aa havoc and it's going into a 98 pontiac bonneville....want to build a ported box inside the trunk but i don't really know where to begin....the box has to be 6.0 cubic feet after displacement and tuned between 28-30 hz. thanks

I plan on going with 3 -10's box will be 3.2cf after sub displacement will be using 2-3 6" external aero ports. Tuned to 32hz and running 2k. Subs in mind are sa's or skar 10's maybe even custom built 10's from splaudio. Box will be subs back port to the front.

This setup will be in a 1985 celebrity wagon. I want insane, air moving hard hitting lows. Two different setups.... 1. I was considering a wall running directly behind the front seats with 4 L7 15's and the most port I can run and still have a low tune. I'm guessing about 300 square inches of port. 2.Another idea I was considering was running a huge box with subs up and port up that starts with the box directly behind the front seats and takes up all cargo area, but keep the box just tall enough to have the port firing on the angled back glass. Of course the port will be as big and tuned as low as I can logically make it. On the 2nd idea I was going to run a lot more c…

hey im thinkin about puttin mirror inside my pox what would be the best way to get it attatched to the mdf with out it fallin off ? any suggestions

Which one do u think will be louder audioque hdc3 15 or t3 audio tss 15

Im changing my set up.. i only had my 2 10" Qs for a couple months but they arent loud enough for me anymore. I have an 04 super crew F150 and im taking the center seat out of the back seat and im gonna center console 2 12" BTLs. maybe if i can fit it 2 15" BTLs id like to keep it a wood enclosure to keep the cost down. Anyone have any ideas for how to get them to fit and have the airspace they need? and then ports?

Pic 1 this is the front of the box that will be facing the front seats Pic 2 this is a view of the back/underside of the box. Pic 3 This is a back/side view of where the 4" diameter aeroports will go Pic 4 this is the other side The sub will be downfiring towards the back of the cab at an angle and im curious of how this will sound. im thinking that since the ports will be loading off of the door as well as the sub it should be a pretty loud design but i would like some opinions since im new to box building. i wasnt able to insert the actual image

So here's the deal. I have a Sundown 1200D, a Sundown 125.2 powering my setup. I will breeze over the 125.2 which will be hooked up to 2 sets of Polk db6501 components (2 ohm load) on each channel giving me a net of 100 watts to each speaker. I am building a CUSTOM box for a12" TC Sounds LMS-R sub. This sub can handle 1k watts continuos and 4k peak. I can wire this sub to be a 1 ohm load which is a load my 1200D can handle (giving out 1200 watts). I am trying to decide if I should port the box I am planning on building needs a port or not, and if so how long, size, ect I need it to be. I believe I correctly modeled the Treo TE sub I have now (in a ported probox) in t…

anybody on the north shore mass or southren new hampshire area with a meter who wouldent mind spending some time playing with my system. got a few bucks if nessasry

I saw this done with on RL-p by some one on here. Basically my only motivation to even think of doing this is because I have a Rear Strut-tower Bar that kind of divides the trunk (99 civic cp). So any box I put in is going to either be really small or really convoluted.. and I don't want to do that.. unless I have too. So what are your thoughts? Another idea is to attach it to the seat back and then build a 1.0-1.7cf sealed box around it.

Ok whats the difference in one box tuned to 35hz with 2.5cuft and another box tuned to 35hz with 3cuft? also whats the best material to build a box out of?

Hey guys just looking for a little input here I have been doing some measuring and test fitting cardboard templates to see what I can fit behind my seats without having to loss a lot of leg room. I came up with this set up. Dimensions 13”H x 20”W x 5”depth1 x 8.5”depth2, with 3/4 MDF it gives me .646 ft3. The Sundown SA-10 specs say it will do fine in a sealed enclose at .5 ft3 so after displacement I should be right on track with .546 ft3. My only real concern here is the mounting depth at 6” I should be in the clear right?

If I can get enough interest I will be doing an IASCA judge training April 11th and 12th in Santa Rosa. I need to get judges up there before I can have a good amount of shows. If any of you are interested in attending a judge training in Santa Rosa please email me at [email protected]. The training is $100 for both days. It includes a full year of membership in IASCA (which is normally $60). Even if you just want to compete the judge training is a great way to get a full understanding of the IASCA rules. When you consider that you get the membership it boils down to $40 for 2 days of SQ instruction. Schedule is: April 11th 9am-5pm -IASCA philosophy -IASCA classes and …

Alrighty then. So im trying to decide whether to wall off my new system or having port back subs up. What do you guys think would be louder. The dimensions i am working with are. Length 53 , Width 49, Height 47. The system i plan on doing is two Fi BL 18s with two Sundown SAZ-1500d. Thanks, Kasey

Ok people, I decided that if I can go with around 3.5^ for each enclosure for the HD 15's, then i'm going with that. I know that isn't the optimal size for this sub, but it's just for a daily driver and not doing any competitions; basically trying to bump somebody out on a street situation. If this would be too small for the subs to actually put out at their full potential, then I would have to go with 2 of the HDC312's. I was thinking to take out the rear deck and have the subs/ports firing through there with having the space b/t the box and metal sealed. What's the input on this one?

website specs say they like 2.5-2.75ft^3 do they like larger than 2.75 or should i keep it there?

do yall think 2 cf sealed and about 4.5 cf ported befor sub and port displacement,15" zcon, and how to i figure out how long to make the port, port is probley going to be 6" by 9"

does it matter what side of an enclosure your port is located on ? my sub is mounted in a up fire position on one end and I WOULD LIKE TO no if it makes a difference if my port goes out the other end of my box just opposite of my sub basically firing at the door

About to build a box for 2 15"s FI BTL's that will be going into a 87 Mustang. Each btl needs 3-5 ft^3 and is .21 displacement. This is my first Wall / Semi wall build so i just wanted you guys to look over it and tell me what you think.

So after much searching throughout the internet I still cannot figure out how to make a crossover. All I want to do is put a 12db/octave high pass on my 3.5" 2 ways at 500hz and a 12db/octave low pass on my 6.5 midbass at 500. All speakers are 4 ohm. I dont know if I need a capacitor and an inductor for each crossover or just one for each. Can someone please help explain how to do this or hook me up with some site links? Please and thank you in advance.

I have a buddy that got a got a box from another friend for free and we noticed the port area after the turn at the back of the box isn't as wide as the port at the front. The first length of port is 2.5" wide, and the second length is 2". Will this cause any major difference in sound? I'm guessing it will slightly tune it less at 2" than if it was 2.5" in the 2nd length. Example:

I've looked around for different test tones, i still dont know how to make my own, but i found a site that offers free test tones 10 seconds long. there is a place at the bottom to download a zipped version of all the songs. Stereo, 16 bit, 44,100 KHz 0 db http://www.ronelmm.com/tones/

its actally about 5.7 after bracing and displacement, is it too big?

Hows it look? Not Allowed To Use Image Extention Click here to View Enclosure! http://chronicenclosures.com/subbox.bmp System Build: 2x Incriminator Audio Lethal Injection 12 Inch Woofers Daul 2 Ohm Voice Coils 1x JL Audio 1000/1v2 Slasher Amplifier 1200HC Kinetik Battery Stock Battery 0 Gauge "The Big Three" Capacator 1 Farad Enclosure Specifications: 3/4" MDF Material Height: 25 3/4" Width: 36" Depth: 15" Gross Volume: 6.334 Volume Displacement: Port - 1.396 Cubic Ft Woofers - 0.22 Cubic Ft Bracing - 0.056 Cubic Ft Total = 1.672 Cubic Ft Net Volume: 4.662 Cubic Ft Individual Woofer Volume:Just Under 2.5 Cubic Ft Subwoofers Facing Upwards Port Specifications: Port Area: …