SPL & SQ / Fabrication

I have a lot better success in making 1 single run with the port if i side fire rather then fire back. I prefer not to have to bend the port(s) is why i am asking if there is anything "off" sounding to this. My max square dimensions in cargo area is - (for this height) 42" wide x 12" high x 24.25" deep. If i were leave a 7" gap in the width to allow air to escape out of the box and shoot up towards the car, i would then have- 35" wide x 12" high x 24.25" deep. At the very back of the box on the side, i would, for example, have a 10.5" high x 4" wide port. I'm assuming i should have it as far back in the car as possible when side firing. If i choose to side fire, should i …

I am getting ready to make a box and need to know two things. I am building a box for a nightshade 12 and I got an aeroport. The box is going to be sub up port on the side 1) Can the port be inside like old times? The only reason I am asking is all I see nowadays with aeroports is crx style with ports out of box. Will I lose db's by putting port in instead of out? 2) If so how many cubes roughly would it take up? Port will be 15.5 inches long and its a 4 inch aeroport. I am trying to see what I need to make dimensions of box if port is in instead of out. I just want the best possible setup I can get for what equipment I have.

I'm considering building a bandpass box for my BTL, has anyone here ever heard a BTL in any of these boxes I listed below? If yes, how did it sound? I currently have a box built to BTL specs but tuned to 34hz.. Most people would be impressed by how it sounded and by how loud it got; but I would like it to get louder. 4th order: rear chamber sealed. front chamber ported. Best suited to subs that work best in sealed boxes. 6th order: rear chamber ported. front chamber ported. Best suited to subs that work best in ported boxes. Dual-bass-Reflex: rear chamber ported. front chamber ported. front and rear chamber connected by a third port. Best suited to subs that work best in …

Hi, I would like to here opinions on Subwoofer designs, Setups, And enclosures for a Convertible to produce traveling low hertz bass with the top up and down. I have built many design in my 98 Mustang Convertible for Soundoff Contest and have hit as high as 154.3 DB's in a Usaci competition. This my car i have brough to the competitions Now i am looking to build a system using the back seat or trunk or both to produce that sound quailty traveling bass, not that loud rattling bass tat you can't enjoy in the car. has anyone done this in a convertible If so what speakers, enclosure and postions was used. I have thought of using a 3 high end 10" subs in the back seat in seal …

Me and a buddy are building a box for 3 12 inch w6's, I was curious if I could have them all in the same chamber or if I should divide them all into individual boxes we already have the entire box built excluding the face of the box.. The dimensions are 51 3/4 wide by 16 1/8 tall by the top board is 15 inches deep and the bottom board is 18 7/8 deep (the box will have a slant face)(I am also using 3/4 inch mdf). I would also like to know how big I should build the port I wanna get about 32-33 hertz. Any help would be very much appreciated.

2 fi bl 12s ported box dunno if it will fit in my car its a 2012 ford fusion.I like to hear rap music and deep and low

So Im collecting parts to do a blowthrough in my fullsize chevy regular cab. 1988 k1500. Just bought a crescendo 3500. gonna get a singer 250a alt and a couple 3100s and one up front. multiple runs of 0. okay so now for my question. i have been pondering ideas on sub/box setups. I have been set on 2 18s for a while, but got to thinking about 4 15s. and idk whether to a 4th order or just a regular ported box. i can do the rregular box tuning but would need some help designing a 4th order as i have read and have yet to wrap my brain around it. My goals: Daily, Hairtricks (move air yo) not super low. 30-32 (in regular box tuning terms) not sure where that would be in a 4th o…

Can anyone design me a box for two 15 inch subwoofers? Two 15 inch SHOK minis. I can go 16 inches tall, 36 inches wide and 18 inches deep. These right here. Thanks in advanced.

im building a rectangular box. i was gonna ported cuz i was gonna get a 10" fi ssd. originally i was gonna make a L shaped ported box but was told 2 get aero ports insted. the box that i wanna build is 3/4" mdf and is 30" long, 9" deep, and 12" high and has 1.30 cu. ft. of air. The ssd needs to be .90-1.80 cu. ft ported to 33hz. wat should i do? can sum one make a diagram or sumthing? thanks.

Do you guys take this into account (from the JL box building page): I take this as meaning I subtract half of the port width from the length. For example, my calculations calls for a 16.5 x 6.15 x 26.25" long port in order to tune to 33Hz. Does the physical port in the box then become 26.25 - 3.07= 23.18 inches long?

I am thinking about getting someone to make me a custom box. Anyone know anyone that does this?

im 'this' close to putting my rl-p back into i.b. config-the sound was just to my likeing- but it will mean sealing up the trunk (fold down seats-rear shelf) properly. im thinking fibre glass and mdf and bondo and expanding foam? any sujjestions before i make mistakes?

How much will having a bend in a round port affect tuning & sound? Not talkin like 90's, maybe a 30-45 at most. Is there a way to compensate for it w/ length or something or just trial & error? Bigger port maybe? ie 5" port 30 deg bend compared to 3" port with same bend?

Hey guys im looking to buy a custom box for a Fi Q12 and I was recommended 3.2 @32. I was reading on here that they recommend 1.8-2.5 cubic feet @ 28-33Hz (32 being optimal) Im a little confused, could some clarify what the best box to purchase would be. Cheers!

This is what happens when you get wood cut at home depot. I got all my cuts at home depot and some are 1/16 to short. they wasnt using the regular saw. i was wondering can i use some sealer tape for the cracks?

I need some of you guys to make sure my calculations are good and that this box will work out. This is the first box I have designed to be as critical as needed. I am wanting to try a subs back and port into the cabin approach. This should work out to 6.75 Cu Ft after port displacement and after the 15 " BL's it should have 6.39 Cu Ft at about 32 hz. I am wanting to try to make it bigger and get maybe close to 4 cubes per sub. I have about 7 or 8 more inches to work with to make it a little bigger. But I figured I would make sure I am doing this correct before I go and design another one.

Need help designing a Blow Thru for a 92 chevy extended cab stepside I have 48 in across and 19 in tall this is for 2 15s with a Sundown SAE 1200D Box need to be tuned to 32 hz.

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

I've been wanting to start my box build but could not find anyone selling PVC 8" x 20" flare aeroports. I've contacted a guy named Derrick that sells them but have not responded for over a month. I don't want to make my own and would rather buy a kit, and I have already looked at the metal ones but they are pricey. Anybody know where to get them?

I know the pic is small and I'm not saying I will do this(but hopefull) Should I be concerned about cancellation problems or is this design ok

Good morning. I would like to help build a garage door: number two mount sub woofer 15 " box with dimensions width 96cm height 38 cm depth '51 internal dimensions of the box 185lt. transmission characteristics of the sub woofer: maraca: Ciara MOD: 395A http://www.ciare.com/pdf/catalogo/CS395A.PDF someone can 'project box to send only two sub box with a door? thanks and goodbye

I like to think up things i haven't never seen done so let's get some opinions in here because i wanna see what people think how this would work - I don't feel like drawing a pic so i'm going to rely on your visualizations to see this box in your head. Let's take a 12" sub. Let's put it in a ported box at 2.5 cuft. Tuning... thats the interesting part. Ok, so build a box with 5 walls, not 6, 5. Leave the rear wall completely off. Now, let's say for quick number crunching, the box is as follows - (all external) 16" wide x 16" tall x 16" deep with no rear wall. Now, let's build another box with no sub cut out, again with 5 walls, not 6. Dimensions for this box is as foll…

I have 2 SSA Evil 15s My box Outside Dimensions is 41W x 31H x 21D / Double Baffled all the way arournd 1.5" Birch My box Inside Dimensions is 38W x 28H x 18D I have 2 Braces 1.5" x 3.5" x 38" and 1.5" x 3.5" x 18" I need help with designing a port. I would like to be tuned to 28hz / As you can see my Port is too Small. I dont want to remake the box i would like to Remove the Port and Fix this Box. Box inside Cubic Feet Empty 11.08 Brace Cubic Feet .17 Both Subs Displacement / 2 x .22each = .44

I recently bought 2 RE AUDIO SXX 12" woofers and plan to build the enclosure (vented) by myself (first time in my life). Since the manufactorer's web site only provides a box calculator for one woofer, can somebody kindly give me some advice on dual woofer enclosure and port measurement? In order for the box to fit in the trunck, the size constraints are: Length < 35", Height < 16.5". I prefer SQ over SPL and hope the bass hit as hard as they can. Thanks so much! The T/S parameters are listed below and more info. can be found on http://www.reaudio.com/woofers.php#goto_sxx Qes: 0.32 (Electrical Q value) Qms: 4.4 (Mechanical Q value) Qts: 0.30 (Total Speaker Q value)…