SPL & SQ / Fabrication

To have a loud LOW end and the SMOOTHEST transient response (not punchy) and DEEP overall which type of box should I get.

I was just wondering how much space between the end of the driver to the wall of the enclosure is sufficient? Meaning what wont hurt the driver or sq/ spl. I'm thinking of a 15" havoc ported. The xmax spec is 30 mm if that matters. Thanks in advance and merry Christmas to all.

Hey SSA Members I have 2 Mtx 9510-44 that I am looking to design an enclosure for, now I'm not to sure if its possible but I think it is, I would like to be able to do hair tricks, for power I have a Lightning Audio 3000 watt mono amp which is putting out a steady 1900 watts, the car is an 03 cavalier with factory electrical big 3 and two optima red tops. I'd like to fire the subs forward and possibly run the port on the rear deck lid sealing off the trunk from the cabin. my max dimensions are 36x16.5x24 I dont think it needs to be that big but I am new to hair tricks so I need some direction Thanks everyone.

i have no experience in enclosure construction at all and have been tearing through forums for some helpful advise in enclosure designs. I am pretty confused at this point about some things and was wondering if anyone could clear it up? I am under the impression that if a certain speaker is in a smaller enclosure that it will handle more power and a larger enclosure will be more efficient (less box rise). so if that is true, will they be equal in spl if they receive the same amount of power (after rise) rather its in a "smaller" or "larger" enclosure? i have also heard of people covering ports to play with their tuning, is this just a solid cover reducing the height/width…

Im about to be doing an enclosure for 2 12" Memphis m5 subwoofers. . And I cant find enclosure recommendations for them.... been looking on google for a while and cant find a straight answer.. anyone know around how big I should make this? I'm going to be trying to get them behind the 3rd row in an escalade. . Dude has not brought it by yet so not sure if ill be able to fit them yet........., ported by the way

Ok, i just bought 2 Fi Q 15's with BP Power and a AQ2200D amp for my truck. I have a 2000 ext. cab dodge dakota and am looking for some enclosure help. I currently have an idea for a certain ported wedge design with my amps fixed to the bottom but it is only 6.2 cu.ft. net with 78 sq.in of port. A similiar design can be found here: http://mobile.jlaudio.com/gallery/detail.php?vehicle_id=1095. If anyone has a design in mind, and would like to show it, I can be emailed at [email protected]. Any input is welcome. Thanks in advance for your input.

Hey everyone, Long time lurker here, finally decided to pull the trigger on a 12" ICON and would like recommendations for an enclosure. Given my driver choice I'm obviously going for sound quality. But who doesn't like a little bit of output? It will be going in an IS300 and run off of a PDX M12. My ICON will be seeing anywhere from 500-1k watts depending on where it blends best with my front stage. Anyway, I noticed that on the product information page for the ICON there are two different optimum enclosure size recommendations. Under the "Enclosure Recommendations" tab it lists ported optimal as 2.25 ft^3 @29-34hz whereas the "Pre-Designed Enclosures" tab has a l…

Right now my enclosure is 6.5 cubes tuned about 33. Port area is only about 82 . . Was wondering what kind of changes you think I could see by lowering the volume more to increase the port area to cubic foot ratio

I am noticing some mixed thoughts on enclosure bracing. My opinion on bracing is to brace areas larger than two square feet. Again that is my humble opinion, no scientific study. I have done a little bit of research and I have not been able to come up with an definitive answer. I had a Team SSA member tell me today that a mounting baffle for 8 12" subwoofers does not need bracing. That seems like a far stretch for me to believe. But then again, I am basing my enclosure bracing off a hunch. Can anybody name a scientific evaluation that has been performed on enclosure bracing and it's proper application? Or even a good article written by a reputable source on enclosure brac…

i was surfing around another sight and seen a post of a fellar wanting to check his design on a port. he was told a length by the guy , and drafted the port out accordingly. the port he presented is the exacrt length he was told. i was just thrown off by this because it is a slot port, and i thought that the end correction should of been factored in. i was told it wasn't. so does the end correction not always factor into a port design? the port folded so it was so it was not on the exterior wall, but ended inside the box along the adjacent port wall. thanks for the help. just wanting to ensure i am equiped with the right info. chop edit.... the length given was to be 26…

Do you guys think an 8" aero port would be enough port area for 2 12" zcons? They would be in about 6 cubic feet after displacements. On around 3500 rms. Tuned around 34hz. I want to go with a 10" port but an 8" would be a lot easier since I'm only going to have about 36" for the width. You think I should test it out and try or do you thinks its forsure not enough?

Ok, so this weekend I plan on pulling out my box and putting the zcon's in. 2 12" 1 ohm z's goin in. Gettin the diehard platinum marine sat nite and puttin the saz2500 in. Rt now my box is 4.75^3. Its an angled box to fit behind the seats of my 3 door s-10. I have another 4" of room I can go up. That would be about another 1.4 cubic feet or so. Rt now the port is on the side and has about 78 inches of area. 19.5 wide by 4 tall. Is that enough or should I make it bigger while I have it out? Or should I leave it alone? Also what would be a good gauge of wire to run for the subs? I cannot wait to hear these z's rumble!!!!¡¡¡¡¡

I am looking for anyone in NorCal who might have a mic and whatever software needed for EQing my car that would like to help me out. or if you know of any local shops that are good about doing this sort of stuff cheap/free, that would be cool.

:ph34r: from france...:... Street A -------- 1. 154.4 Soundteam Painer 154.4 153.8 153.6 154.4 2. 152.4 Team Mbs 151.9 151.6 152.4 3. 152.1 Team Bs - Black Devil 152.1 151.9 4. 150.9 Mario Pirker 150.5 150.9 5. 150.0 Peter Augustijnen 150.0 6. 148.6 Alexendre Pagani 148.6 7. 147.9 Saje Matjaz 147.9 8. 147.6 Alexis Busse 147.6 9. 146.2 Simone Dal Pra Street B -------- 1. 157.8 Markku Skantz 157.3 151.1 157.5 157.8 2. 157.7 Team Dd Austria Rene Morawet 157.2 157.7 157.5 3. 153.8 Team Goldensound 153.8 152.7 4. 151.6 Boris Josefsson 151.4 151.6 5. 151.8 Chauvin Maryline 151.8 6. 151.0 Nicovero 151.0 7. 150.5 Bonnet Julien 150.5 8. 147.6 Mickael Laine 147.…

Well I pulled the trigger and I got 2 evil 18s. A lot of my friends are telling me 4th order bandpass I'm not completely sold on doing it. One of my friends has the same Subs and paid for a custom design for his vehicle where sealed is 5.5 cubes ported is 14.8. SSA recommends 4.5 - 6.25 sealed. I realize that is strictly for a sealed box, but my question is that 5.5 that they have designed for him is only big enough for 1 sub. Is the design rules different with 4th orders? I'm leaning more towards just a regular ported but my thought process was for an extra 2-3cu tops why not have the same set up?

well i got the expo to wang finally. its go the 4 PG 15's and about 3 grand in watts for the subs and the windshield wipers are now jumpin off the window and it feels liek your in a wind tunnel. I smile every time i get in it and blow my ear drums out with it. what? huh ? what??? dude i cant hear you speak up. Slayer sounds really good in it too. but i gotta love jammin some ying yang too. it will be at the march 27th import life tour at COBO hall in detroit. so if you can, be sure you guys get out there to check it out. Its ugly but it wangs. Im working on the fiberglass install still the guy that was going to do it went out of business. so theres a new cat gonna make…

Ok i have been competing in an 02 ford explorer (third gen) with two 12'' nightshades, 2 1500s, and a big ol battery box in the back.. sub up expernal aero ports back, i am looking at ways to make the vehicle louder not get more power as i am reaching my limitation running in MECA s2, anyone with any suggestions i am at a loss for ideas, also it has the third row seat which make the vehicle about a foot longer than the one without in 3rd gen models..

Anyone ever built a box for 99-06 ext can gmc or Chevy truck? I am trying to make one but don't have my truck until 2 weeks from now since it's getting painted. I mainly just need some max dimensions or an existing design. I appreciate any help

If I hsve aeroports half internal half external does the volume of the external portion of the port count towards the internal volume of my box? Also would the surface area of the portion of the port within the box divided by 1728 by the ports displacement? Thanks in advance!

if u have a regular internal port that needs to be say for example 20" long to get a 30hz fq.....would it still need the same 20" length if it was external to get the same 30Hz tuning? I know internal volume would be more considering less displacement

Any advice on doing an external port, like how to attach it and are there any negatives to doing this? Im planning on getting 2 sa-8's and putting them under the back seat of my 03 extended cab 1500. I will have the port coming out the side of the box under the seat as well. I plan on making it so I can remove the port to exchange with others, really just to see the difference and also because of size restictions. Box will be 2 cubes after sub displacement, so I will probably do a 5"x6" port 32.5 inches long for 33hz tuning and another one fro 38 or 40 hz. Thanks for any input guys.

Since soon I will be installing a new sub in my truck (if i can ever get in contact with nick at IA) so while i have the 180lb behemoth out of my truck i figured I'd slap the leftover second skin somewhere. Im looking for the most quiet and the most potential SPL gain. My doors have 1 layre on the door skin and 1 1/2 on the door (didnt botehr putting a second layre over the window acess gap incase i ever need to acess the window) I have 2 on the back wall and that helped a LOT. It went from slapping my bedliner to maybe 1/2" of movement full tilt. I feel much more comfertable upping my SPL now that my back window isnt dancing...as much. The floor and firewall would proba…

Hey guys, I was messing around with some box plans, and for the recommended box for two rl-i 8's (.6 CF @35 hz) the port has to be over 106 inches long. That is almost a 3 CF port! Anyone know how I can get the length down some? Check my math, but I'm pretty sure this is right.

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?

Still doing my Thunderbird blowthrough build with the 2-12"BTLs but Im already looking ahead of what I can upgrade to. I know what I wanna do (no Im not telling). Soooooo I want some opinions on a enclosure I thought up. The question is really about the direction of the port. The box will be a half L and half T shape.....(removing rear seats) part of it would be in the trunk but most of the box is in the cabin. so the subs would be facing up with the port forward. reason why I want the subs up is so I can use some plexi. It'll be just above shoulder level. Leveled with the rear deck. This is what Ive drawn up. Do u think the port will be fine facing forward? note this is …