SPL & SQ / Fabrication

Just to start off, I'm building this for the heck of it and recently picked up an inexpensive Memphis audio 15-ms84 to build a box around. This box might be placed in a car just to see what it will do but will stay mostly in the office. The pictures should give you an idea what I'm trying to do, and should show most of the specs of the box. Basically using an 8.25" x 1" slot port that is 23" in length with a tuning around 38 hz. The box volume is .59 f^3. The response curve seemed to have an nice flat-ish shape that hopefully will make it sound 'full' to the Fs. If I'm doing something completely wrong, please let me know - Gently please. Thanks John

i know its kinda of a noob question ... but how big should i cut my counter sink hole, like the diameter

Are 45*s needed with in boxes that use PVC tubing as ports? Also I designed my box using Win ISD and was told to make the box roughly 2.0 @36hz and use 10" of 4" pvc. Now does WIN ISD take in to account for the space taken up by the PVC or do I have to make the box larger?

Ok question 1 : Im planning on building my own box but when they say have 12-16 sq in of port space what does that mean? Which part of the port do you measure to get that figure. 2 : would a T-line be a better choice for 2 BTL 12s with a 2.5cuft box? or a regular L-port?

Hey all.I have a few questions about walls for car audio in cars.I have wanted a wall ever since i got into car audio but ive had a few concerns about them.Here are a couple of questions/concerns I have about them. 1.About how much does a wall weigh on average? ( I was told i could get a wall built in my car that would weigh about 300lbs made of birchwood.Is that possible?) 2.Is it a must to have air shock or whatever in the rear of the car (I have a 2001 Mitsubishi Galant ES 2.4L and it would cost over a grand to put airshocks in.) 3.Do you guys think my car could handle the weight of a wall? i VERY BADLY want a wall in my car and I know I will not stop fiddling with my …

Want your guys opinion on this. On my HHR wall, Im thinking of covering the inside of the ported chamber in suede as opposed to painting it. Would this affect sound or performance any?

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

http://www.craftsman.com/shc/s/p_10155_12602_00964473000P I found one of these at a local pawn shop and was wondering if it would be worth picking up for 50 bucks. The one at the shop has a attachment that looks something like a router and has a circle cutting attachment among other things. Really would just need it for cutting circles, and then possibly other household things. Sorry if this is in the wrong section didnt really know where to ask about tools here.

Hi all, I have 2 boxes that ive built and i am in the process of testing. ->build log here<- they both have the same interior volume and tuning and all that good stuff. so the internal volume is about 2.45 cuft with a tuning of ~34 hz with about 40 sq inches of port each. now i had a box that was 2.5 cu ft tuned to 34 hz with 39 sq inches of port and didnt get much overexcursion. so heres my problem. on low notes like 28-34 hz the sub barely moves and creates ALOT of sound, im very shocked by this. but when you get to like 36-40 hz the sub reaches its limits of excursion and anything above 40 its just bottom out city! im very scared about this because in the o…

Hi, I would like some thoughts on my box design. From what I've calculated, the numbers work. I'm tuning to 35 hz. The colors are to distinguish the different panels. Also, please disregard the different thickness of the walls. I didn't want to have to build the box again just to make the thickness right. The curved corners are to represent where I will kerf. http://i.imgur.com/01zoy.png It is 15" x 22" x 16"(outside). Thanks

ok ok so i had a lil show today.... and i heard some stupid ass shit come out of peoples mouth... . and some shit that made me prove my point of running 15's IE "yeah fam thats why i like 12's you can hear them hoes from far away!. "yeah you cant make 10's loud " "i like 15's cause them hoes hit low you cant get that sound from a 10" " so you can make 12's loud like your 15's?? nah nah nah i dont belive that " but the good out of what i run.. "damn thats only 2 15s!!?? " " i thought it was 2 18s" i got two 15's but they dont hit like that " so anyway im thinking in the black town car i can do anything... and i was thinking 2 or 3 18's ... then i was think…

My uncle had all the tools to help with the build but then a lady drove into his garage and in the process ran over the main gas line. His whole garage was torched, including the tools and his brand new Honda Pilot. Since the last time I've posted, I haven't had time to build it but a coworker of mine wants to help out with the build so I just wanted to go over some options. TIA My max outside dimensions: W=35" L=8.5" H=15". This is going in an '06 Suby wagon. The sealed box should work fine but I'm wondering if ported could work also. I listen to some rap, but mostly alternative and stuff like Blue October, Silversun Pickups, etc. I think I have the room for ported…

i was reading the new england spl site and i see it other places what dose CRX mean and why cant you have it

ok i posted this on another spot on this fourm but i think i might have put it in the wrong spot....im building a box (hopefully my btl will be here soon) im going with sub up and port back....i was wondering if its would be best to put the sub over the port or closer to the front of the box or just in the center

Do crx boxes work in a trunk with the subs up an ports faceing the back?

what is the better year for spl? I think that they changed body styles in 88 so before or after then. Since I'm looking for another car that's good on gas this would be an option. Just lookin for for suggestions and maybe a tip or to too get them loud. thanks

where is their build house at? who would do the service on the equipment? and where can I find the new COMPx2 for a decent price, I would prefer to run it over the Orion H2 and RE XXX, but the it might be priced to far out there

Has anyone tried this when they were bored or may just know what happens if you take a ported box and install 2 ports in the box, one tuned to let's say 30 hz and the other at 45 hz. I'm just curious as to what happens. Does the box react as if there is a major air leak? Do the port's tuning medium come into play and output a tuned frequency of 38hz for this example?

okay guys im making my brother- in-laws box and i was cutting with a jigsaw and made a little curve by any chance do you think it will be okay because you have no clue how worried i am about this i mean i want to do it right but i just hope i didn't mess it up if anybody thinks it's fine just send me a p.m or just put it on here because i really REALLY need to know......

Non-Wall. Single Cab Chevy. 2 db Drive K9 10"s. 1800w Non-Wall. Dodge Nitro. 3 db Drive K9 12"s. 1 db Drive A7 3500. Walled. PT Cruiser. 2 Fi N3 18"s. 2 RD D9's. Same PT, Non-Walled. 2 SSA ZCON. DD M3a Walled. Isuzu, 6 RF T2 15"s. 3 RF T2500bdCP's..... Loudest Rockford Truck Known to Exist. More Videos of this truck in the 1st reply. I'm new to the Sketchup thing, never really did it before until this week. lol So be easy on me. …

See attached pdf for design & WinISO charts. This is the first time I've attempted this so I'm sure there's plenty wrong - looking to learn! Powered by a memphis 16-st1000d pushing 600w rms at 2 ohm. Box 2 design.pdf

I am looking to have a ported box made for my 15" FI Bl and have looked into the group buy for khaotik enclosures but the box specs wont fit in my car. im looking for somewhere around 4 cubes sub up port back and am limited to 34" wide and about 14" tall the depth doesnt really matter. i would also like a double baffle and either some sort of coating or carpet applied to the box. thanks in advance for any advice and help.

So, i want to build a custom box for a Range Rover classic, LWB Box is for two 12" Alpine Type R's. I want the subs facing towards the roof and the port facing the rear of the vehicle, the "classic" SUV style. Although, the truck comes with a stock cover over the very rear, i want the box to be underneath that, so when i park i can cover the stuff up and keep people from wondering around the car. What wood should be used? Also, any special tricks with making boxes? I will provide picks tomorrow if needed.

I need helping figuring out how to go about getting 6.5s in the doors of my 86 GMC Sonoma. As some of you might know that S Series trucks (S15s and S10s) around that year didn't come with door speakers from the factory, only dash and back panels. I never fiberglassed before so if possible i would like to stay away from that.. but if i must i will take on the challenge, if i could get away with just putting a sheet of MDF on the door and cut holes for my 6.5s that would be great.. but i don't think there is enough space between the door and where the MDF would sit because there was no speaker in before hand so GMC didn't give it the room for speakers so somehow i have to m…

Hey guyz.. Does anyone know of somebody that does good door panels around the san antonio area or somewhere near by?