SPL & SQ / Fabrication

can someone tell me what a t-line enclosure is and whats the advantage

Got a pair of MTX 8500 10"s that I am trying to sell (brand new in boxes still) but if they do not sell I am just going to use them. I am wondering what the best box style would be for a pair of these? I have pretty much unlimited space (Astro van) so that isn't an issue and they will be run on a XXX-6500D @ 2ohms so like 1500 each for burps, 700~ daily...

I wasn't sure where to post this so it will probably be moved.. But im planning a new box and im debating what frequency to tune to.. The thing is that i have a box in my truck now that is tuned to 40Hz and I want to play sine wave tracks (30hz, 31hz, 32hz.. and so on) to determine where my box peaks at with cabin gain. I believe this will help me make my decision because I don't really know what hz is playing in a song and say my setup starts dropping of around 45hz now.. I may want it to drop off around 35hz.. Also i will use the tracks to compete if i ever build a loud setup. I buddy of mine used to have a cd with tracks like this so I know they're out there.. Could…

Today's massive frames and motors add challenges to designing enclosures these days. What is the general "rule of thumb" for the minimum acceptable distance from the back of the woofer's motor/pole piece vent hole and the back wall of the enclosure, or a port wall? I'm playing around with different designs for an older Rockford Fosgate T210D4. I can handle the designs myself, I just need some input in this area. Thanks in advance!

I've got these comps installed in my jeep with the tweets mounted on the doors @ the front corner of the window. As of now I'm running a reference 500 to them but plan on switching amps in the very near future. even with the crossovers @ -6db the tweets sound way too high and ear piercing. Does anyone have any experience with these comps? Any suggestions on making them sound a little better?

Ok ppl I will be making a ported box for my subs, my external dimme. are 38" wide by 14" height and 17" in depth,, My question is, I will like to tune it to 35hz or a bit lower are these dimme ok ? my subs are HX2 12 "punch series dvc 4 ohms will this be ok ??? in order to be on the right step...... ok at this time I'm using bass box pro 6, I'm trying to get the hang out of it ok anybody correct me if I'm wrong ,vent side will be 12.5 height + 12.25 long and 2 inch from side wall (26.75 sq inch port) tuned to almost 35 ........

Hey guys I was wondering if I could get some help for a box design. I messed up my first design as my box fits inside my car but I FORGOT to measure the opening of my trunk to put the box in which doesn't allow it to slide right in. I am coming to you guys for a design for the Fi 15" BTL. And the car I have is a 95 Honda Accord. Max width I will go is 35" and the height will 16.5". Was looking for maybe 4 cubes of space @ 35Hz. I would really appreciate the help and thanks in advance! -Curt

How much mdf would i need to build a sealed 3 cubic foot enclosure for my 15" xcon

so I just took everything out of my trunk. which also includes the rug and spare tire. I'm not putting the tire back since I can't get it out when everything is in. so my question is should I put the rug back in? I thought I read somewhere rugs are bad for spl. thanks.

I have an re sx15d4 in a box that is 2.9 cu ft gross w/2 3" wide 10" long aero ports. I will be running an saz1500d @2 ohms into this sub. I want the best sq I can get from this sub. So I'm looking for box recommendations. Right now I'm looking at building a 4.2 cu ft box tuned to 34 hertz with a slot port facing the back of my jeep and the sub firing up. I used the box calculator to design the box.

Getting ready to do a little sound deadening this weekend. This is going into an 07 Altima. Do I need to remove any factory deadener that is glued to the floorboard or any other place. I'm not talking about any jute carpet or material that can be easily removed with my hands. I know that some cars have factory carpet/rubber like padding on the floorboards, does this need to get removed or can I just deaden around it? Thanks. Thanks!!! :drink40:

what are some tips to get good bass response into cabin of a big trunk car that the seats dont fold down? car is a 02 caddy deville.dont want to break the bank in electrical upgrades and equipment. want to run around 1500w or so. and spend 350-400 on subs not including box

ok so i built a box for my new nightshade 18. it is just under 5 cubic feet before sub displacement but after port displacement. it is tuned to 31 hz b4 the sub. it sounds great. my question is if the port area is too small. the re calculator that i used said that the square port area was 55.5. idk if this means inches or what but im guessing inches. the sub performs great at higher frequencies but the lows are kinda lacking compared to the 18" fi q that i had before. any info would be great. also if somebody would be willing to design me an optimal box that would be great too. my dimensions are 36" wide 22" tall and 20" deep. sub and port would have to be facing up. i li…

i have one orion hcca 12 with a hifonic 2600d that will run @ 2 ohms ...lookin around for design an the 12 xcon optimal ported 2.65 ft3 tune to 30 is the perfect size i need cant this box work well for the hcca12???lookin for loudness..... thanks

I don't want to keep bugging Jacob if other people here can help. I am building a ported enclosure for 2 Sundown SA 12's . A few questions , would it be good to tune them at 36hz? They will be on a Sundown 1500. Also, What i really need to know more then anything is the port dimensions. The max dimensions for my trunk is 22 Depth, 33 length, 16 Height. A sketch up would be really appreciated with the port calculated and what not! I will return the favor in some way *Shizzon are you around?*

I'm trying to figure out my next box. The program I'm using is tells me that my port will be 5Tx10Wx17.5D. Now how much of an effect will it have if I was to change the opening to 3.5Tx11.5Wx17.5D?? I'm looking to tune it to 34Hz. Thx from the help.

Hey all... got another question here . If you use aero ports, is it possible to build the box smaller in relation to a box with slot ports, or is the port displacement the same for both types? Thanks

I cant decide if i want my port to be in the middle of my 2 18's or @ the bottom below my 18's people reply back asap thanks=]

Wood Thickness 0.75 Height 30 Width 38.5 Depth 15 Sub Displacement 0.42 Port Height 28.5 Port Width 3 Tuning Frequency 32 Port Length 29 3/16 I get Around 6 Cubes at around 32 hz, after sub and port displacement...i just want to be sure they are correct. thanks.

Is there a major sound difference for a 12" from 2.30 Cu. Ft. to 2.50 Cu. Ft.??

First time building ported enclosure, I would have someone build it but I'd cost too much to ship and sounds like a fun project, sorry Argent hmm, scratch that the box volume is going to be 7.66cuft I used the port calculator at 12volt, port width: 30" port height: 2" port length: 13" tuning: 33hz I drew up this pic so that someone could tell me if "B" is part of the port length or what (p.s. picture is not in proportion to dimensions, just general.) So would A+B=13" or is A 13" and B is?

I'm thinking about making a box for some older Rockford RFP1408's that I have, they are 200 watts RMS each, the only wood I have is a 30"x60" sheet of 1" MDF and another smaller sheet of 3/4" MDF. So, I'm gonna use the 1" sheet for most of the box, and the small 3/4" sheet for the front. 1.25 Cubic feet 1" x 11" port tuned to 33hz What do you think?

I need help making a 2 4in port box enclosure tuned to about 33hz. can anyone help?

Hope this is the right section. Anyone in the Myrtle Beach/Conway area we are having a metering session Dec 8 at Carolina Audio in Conway. Call 843-455-9121 for info/directions. It's not a show or competition per-say because we won't have trophies or classes, and it's not really a show because there's no forms to fill out etc. Just stop by if you want to get metered on a Termlab for a good price. I hope I posted this in the right place because it was originally meant to be a competition, but we didn't get things really together in time and it's just not going to be big enough to have classes or trophies. Should be fun though, and get a nice offical T/L score without the l…