SPL & SQ / Fabrication

Hey everyone, Im in the process of building a new system in my 2002 WRX Sport Wagon. 1. Head unit: Pioneer Avic N1 2. Amp: Planet Audio BB175.4B RMS Power (2 ohms) 195 WRMS x 4 RMS Power (4 Ohms) 140 WRMS x 4 Bridged Power (4 Ohms) 345 WRMS x 2 Signal-To-noise Ratio 102 DB Frequency Response 20Hz - 20KHz Dimensions: 6-1/2" W x 2" H x 16-5/8" L FEATURES Variable Bass Boost (0 To +12DB) Switchable Input Sensitivity: 100mV-2V Or 2V-8V Tri-Mode Operation OBAC-1 Audio Enhancement System Continuously Variable 18DB/Octave High And Low Pass Crossovers Low Level Inputs And Output 3. Front Speakers: Kenwood KFC-P708 65 watts rms 4. Audio integrati…

i had a post earlier about this when i planned on making my sub box. however... i made the box bigger to 5 CuFt now and im curious if i could still be ok with (3) 4" aero ports instead of ordering up one more? :thanx:

ALright so i want to do a kerfed port on my next box... i read a thread and i am almost ready to give it a shot. However i have one question. when you do the kerf, do you use the port piece to kerf and then attach it to the front piece on the box or is the port piece and front piece one seemless piece with the kerf in it? if this doesnt make sence i will try to expalin better.

Hey I am just wanting to clarify that this box design meets the specs that I was told. This is for "1" 15" Fi BTL. It was designed to have 4 cuft. tuned to 35Hz. (Calculations done by BKOLFO4) The box with a slot port will need to be 17" tall in front, 14" tall in the rear, 31" wide, and 23" deep. The slot port will be 12.5" x 4". You will run it into the box until it is 4" from the back wall, and then turn and go 2" parallel to the back wall. (Designed by BKOLFO4) Like this (note the port dimensions are internal dimensions): Thanks in advance, Curt

Well i installed it mid june(?), everything has worked great. Whenever i took people, they said my truck smells weird. I never really thought about it, but last weekend i drove a group to the football game (they chose the guy with an 11 mpg truck to drive 1.5 hours there, wtf lol) and took the box out for the ride up. When i put it back in a couple days later, i noticed the smell. I guess i just got used to it, and never noticed. I know it's not my sub, because it can smell funny when i get in it for the first time in a couple days, when nothing has been playing. I really can't describe it, it's a mixture of things. Wood would definitly be one smell, but could it be sili…

I need a wall built , anyone from Dallas/FORT WORTH area can build ,know wut they doing ? Let me know In a yukon xl 2006 . 4 -18's

I have a beautiful box that was built specifically for my vehicle. Now im going a different direction with my setup and I want to lower the tune on the enclosure. I have done a little research and I know that decreasing the port width will lower the tune of my enclosure but i will have to sacrifice a little port area to do so. What are the pros and cons of doing this? By the way the enclosure is tuned to 35 hz and i would like to change it to about 30 or 31. I currently have 100 in squared port area.

Alright guys i'm in the market for a system ( my first ) I have a 98 Z-71 EXT Cab so i have more room than needed. I'm wanting 2 fi btl 15s & 2 saz3000d's or 2 1500ds.....the problem i'm having is idk how to build a box lol Nor do i know what kind of wiring to get, if anybody can help me please help

I've been steadily trying to find the best way to mount ordinary PVC pipe in a box. I looked at lowes and found these "Closet Flanges". They Fit on the inside or outside of the PVC (depending on size, in my case, the inside of a 4" pvc). The flanges have a, well.. flange on the outside with 4 screw holes that could be used for mounting. I think this would work perfectly, except when the flange is inserted into the pipe, it's about 1/8" thick and reduces the diamater of the end of the pipe to about 3.75". Is this enough to alter the affects of the port? The decrease in diameter is only about 1-1.5" long, then it flares back out to 4". What are you guys opinion? Here's a li…

when building kick panels for 6.5 comps would it be better to leave it sealed or to cut a hole and vent them into the inner fender. what is the sound diff in the both. thank you.

ok this is what im working with, i have a 94 corolla 4dr the the subs will be in the trunk faceing the front. the box will be sealed off from the cab. im going to be useing 2-15pbx subs and 2-optidrive2000d (4000w @ 1ohm). the box will be 5cuft @35-38hz w/100sqin port area. ive hit high 130s db with just 1-8" sub w/around 250w on my meter (termlab) so i think i can do it ... so if anybody knows of someone who has hit 150 or over with a trunk setup have them holla at me, or you can just tell me what they did.... thanks jamie

looking around for some round tubing to fit an 18 inch sub, i had seen someone who has done this befor on the Mach 5 Audio test bed site but I cant find that site any more. If any one has done any thing like this befor tips and how to measure air space would be a big help. Thanks.

im headin out to the store tomrrow to get some stuff well im there i wana pic up some new screws that will keep my sub down nice and thight. i did not go with a dubble baffle and with my new 15inch ssd on its way, i wana make sure that my sub does not lift out. here is the thing my last sub a audioq 2.5 was jumping around pretty hard in the same box the ssd is goin in. Can any one lead me to the right screws so i will not have a issue? I will be bolting the box down better to make sure the box it self is not goin no where as well. thanks guys Joe

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…

Does anyone have experience with sub tunnels(diamond,hexagon, octagon) or manifold style boxes? I was wondering how they are for spl at low frequencies 25 to 30 hz(compared to a straight wall)?

i have been working on not using the stupid ass re calc and doing everything on my own. how does this look. height 16 width 30 depth 20 with a 4 inch wide port 33.80839511415706 inches long tuned to 32 hz.

first thing sorry guys ive tried posting this in the fi section didnt notice it was in the wrong place but im trying to find out the cubic feet on this box and its tunning cause i made it but in order for it to fit i had to chop it down 2 inches if anyone has any ideas or any help it would be great and its for a fi bl 15 and again sorry for the double post

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

I have a Fibl 15" firing upwards with a port on the side of my box. I was wondering what would make it louder in the cabin of my car? Port facing me or the rear? Don't know if this will help any but I have a 2010 malibu

I don't fully understand Port Velocity. Using BBP I can figure the velocity but at what are the acceptable limits prior to encountering negative effects?

Hello family, I'm working on a design for my new SPL ( only ) enclosure. My last few enclosures had lots of impedance rise and I would like this one not to. Are there so thing I can do to help keep the rise down? A little more info for you. Box 1.8cuft, port 6" Precision Port tuned to 44hz., 3/4 birch x2 baffle. The sub is a Kicker solo X 10 D1 any help would be great. Wise guys need not reply I have no time to play.

I'm having my enclosure built for an Fi BL 15 that I'm ordering. Im getting the enclosure 3.5 cubic feet. Ported of course. And tuning at 35 hertz. I listen to mostly bass songs. though i do like listening to my spanish too. Bass rap/hip hop music like Young Jeezy, Gucci, Lil Wayne, and so on. Its going in my Altima trunk. Please give me some input, shed some light. Thanks all.

So my build calls for my 4" aeros to be about 38" long so I have to do some piping in my box with 90 and 45 degree turns. When measuring I'm assuming I stay in the middle the whole time and measure flare tip to tip? The turns are what throw me off when measuring. Thanks guys

I have 2 sa15s and i'm designing a new box. It's a daily driver but i want it to be a very loud daily driver. i currently have a hifonics hfi1500 (pending upgrade) big 3 done, XS Power D925 on the way along with second skin coming. I'm probably going to go around 7.5-8 cubes after displacement and wondering which one will get louder to. If i go aeroport how big and long should i go. Any input is appreciated! Thanks

I was wondering if anyone has done builds on a 97-00 Honda crv and how much space I should leave between the box and hatch?