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Found 71 results

  1. Hey guys, Building a box for 2 Treo RSX 10's for my wife's Jetta. Manufacturer's specs for 1 sub are 1.3ft^3 net volume with 12"^2 of port area at 14"long. Thus, I am thinking of building 2.6ft^3 net with 24"^2 port area 14" long. Anyone have any experience with these subs/their tuning and can tell me if other specs might sound better or if I am on the right track? Any direction will be much appreciated. Thanks!!!
  2. Port design question

    In regards to the image, here is my design for 2 warden 21" subs. Box is about 17.5 cubes total after displacement and some bracing. Port will be about 12" wide by 22.5" (internal dimensions) long about 33hz tuning (270" port area). So my question is, I can leave the spot underneath the port without a separator wall, or I can add a separator shown on the right. Aside from adding bracing to the box, would it lower port tuning a little? (in the thought of the air will hit the divider and move up, as if adding some port length?) If the subs allow I may make the port slightly longer, but tuning would max go to 31hz even if i add 6 inches internally to the port. So I dont think I will extend it if the box allows. The port will be pretty close to both woofers. I intuitively don't think it'll affect port tuning, but would it cause any issues adding the separator almost up to the port? Or if anyone has some input on changing where the port goes. The sides are very close to the vehicle walls so a port to the side may not be the best. And there isnt room to port forward.
  3. https://ibb.co/dxXUJF I got two dc level 4 15s im throwing in the back of my accent hatchback, as you can see all amps are wired up and ready to go, just gotta build box, but I cant figure out what would be best.. its going to be a big and tall slot port box, if port is to the rear it will only have like 4 or 5 inches clearance from hatch, i noticed walled off setups are always port and subs forward and sound great but also hear to always point it backwards... with my setup, what do you think would be best? after i build it, its gonna be hard to turn around and experiment so kinda have to do it on first try.
  4. 2 X15 Sundown Box designs

    Please help. I need a box design. Sundown says 4.5 but I was thinking 5.5 because I won't be pushing the to full tilt. Less power = more box from what I'm told at least when it comes to sundown. I need something around 50=w, 30=d, 20=h tuned to 34hz. Any help is greatly appreciated especially old build sheets. Thanks guys!!!
  5. Ive got a box designed for my 2002 chevy 1500 ext cab. The box is 9.0ft^3 and im putting 2 sundown x15's in it on 2 sundown 1500D's @1ohm. I have the box designed with 3 4" wide tube ports, and for tuning at 30hz, it was somewhere around 10 inches for each tube. Will this be enough port space for these subs? Im not exactly sure the requirements on the port size or area. I originally had a box designed for 2 DC level 4 15's, but decided I was going to go with sundown instead. The box size was 7.5ft, but now 9ft. Any suggestions on port size, will 3 4" ports be enough? Thanks for any help guys
  6. Alright so I got like the slotted port down and how to make sure you use enough port area and everything but I'm confused on how to find port area in an aero port. The box I'm building is a 4.33 cubed box without displacement. 2 T0 12in rockford fosgates are going in this. The guy requested to use aero ports so idk anything about them really. Please help. Im starting from scratch really on the port.
  7. Hello I'm looking for a slotted port box design around 34hz for 2 sundown sa-12s. Its a trunk car and has max outside dimensions of 34"wide 15"height and the depth can be no greater than 22" Subs will be firing back towards trunk powered by an ampere 2000w amp, would like the port to be firing back as well. If anyone has designs or will help me create one i'd appreciate your help! Thanks!
  8. Hello i currently have a 3.6 cu box tuned around 36 hz with two 4 inch aeroports 12 inches in length. the box measures 34"w x 16"h x 16"d outside dimensions. i want a new box for my 2 sa 12s that will work perfect with the new bc2000d amp that is on its way looking for something for rock and rap styles of music i would like to try a slotted port design with a flush baffle for the subs. i currently have the box firing into the cabin and would like to do the same thing with the new box. i have 38" x 17" x 17" max space if it is firing into cabin. the car is a 2011 ford focus ses sedan. if you guys could give me ideas, designs, tips, anything i would greatly appreciate it!!!!! THANKS!
  9. Open hatch SUV (Trailblazer/Envoy) subwoofer up, port back. Sub on left side of box, port on right = loudest for passenger? or Sub on right side of box, port on left = loudest for passenger? Simple question just need a simple answer thanks!
  10. Slot Port Length Check

    Which one of these sites is correct on the vent length? Carstereo.com the12volt.com
  11. X-15 D2 Box Help

    I recently purchased a Sundown Audio X 15 D2 paired with a scv-1500d.Ihave never built a box before so I had a local shop build one for me. To my understanding this speaker preforms best in a box tuned to 32hz. I told the shop that I need this built to this frequency but I believe they did not. They built a slot port box, 33.5x20.75x16.5 with a 15.5x23x4 port, with 1 inch wood. After calculating this on numerous box calculators I come up with around 40 Hz. I'm interested in knowing if these calculations are correct and if so what, if possible what the correct dimensions should be with this box. The 33.5 and 16.5 are maxed out on my trunk space but it could've been built up to 8 inches longer. Thank you for any of your help.
  12. I took Andrew McCullough's recommendations for HDC3 & HDC4 box sizes & tunings here http://www.stevemeadedesigns.com/board/topic/187809-hdc3-hdc4-optimum-enclosure-size/. How do these specs look for an HDC3.118 (copper coil) being run of a FSD Audio FZ2600? 5.20 Cubes net 33.03 Hz tuning freq 9.66 Square inch port area per foot (8" x 18" aero) 18.5H x 36W x 21.5D (1 baffle on top 1 on both front and back). This is for music btw.
  13. http://imgur.com/a/1KDsc 1.5" x 1.5" Thickness MDF Is the bracing blocking the aero port out too much? I was thinking about maybe removing the center vertical bar or the horizontal one, maybe even both.
  14. Here's my box design so far for a SoundQubed HDC3 18" http://imgur.com/a/UyRxa Box Specs: 20.75H x 35W x 21.5D. Displacements used are .23 (Sub) and .05 (Dowel rod). 5.95 Cubic Feet @ 30.26 (Cubic feet might be slightly higher due to window). This also takes into account 3 baffles and port outside of the box. Port Specs: 19" total length 7.920" Inside diameter .240" thickness, PVC 12" outside flare diameter 49.24 square inches port area. Still deciding on an amplifier, should be anywhere from 1750-2250W. 1/0 OFC Big Three. 150 amp stock alt. XS Power battery to come later. I still might go slightly larger on the box, every 1" wider gives it .20 cubic feet to net. I know people use 45s in slot ports to smooth out air flow but should they be used in aero port boxes? If so should I just use a 45 for the corner next to the port or all 4 corners? Thanks guys!
  15. Box Advice?

    So this was my first time trying to build a box for my sub, i used a online calculator for the port, but i screwed up the box a bit, i did not subtract the thickness off the wood so my box has less volume than desired, and my port tuning is higher than desired. on top of that i had to change how the box was built bexase my wood was only 24" long ways and i needed a 26" side. so im gonna keep dumpster diving for wood and when i get enough of the same im gonna go for it again. My gole: hit as loud and as low as i can (if i can slam that low 0:49 or so in on Big Kurt - My Sub ile be happy) amazon recommend 5-7'^3 for my sundown X18 and im assuming bigger means louder to i tried to aim for 7 @ 28hz but got 4.9 @ 33hz. here is a pick of my first box Im gonna build a better box but not be concerned weather the next one will fit in the car. ok now your filled in, here comes the advice part. i have really limited access to tools. at my disposal i have a 40 year old craftsman jigsaw that cant cut threw wood this thick, a dremel with quite a few bits, one of those switch blade saws for cutting down small trees, and i can go to my great ants house and use her table saw, but its like 50 years old and really small, so i cant use the guides because the wood is to long and i cant cut at angles. oh and if i go to her place she has fancy new jig saw that can cut thick wood. so with the tools i can use, any advice on getting low loud power? and is using larger recommend size better or should i shoot for 6'^3? and for the volume of the box do i need to worry about the space the port takes up or the woofer takes up? and incase it helps, a vid i made on the sound of my box . along with this showing my response at least in my house.
  16. Hello everyone. I am trying to build a box tuned to 30 Hz for three Ground zero GZRW 30 XSPL D2 speakers. I believe best box size is 180 liters, but i don't know what size slot port should be. can anyone help me? Number of drivers : 3 subwoofer Xmax = 40 mm thank you! edit: Is it okay, if i will use 400 cm^2 vent area?
  17. port size and shape help

    Ok so im set now on getting a dayton ultimax 15 for my sub stage in a 4cubic foot box tuned at 25hz... i want dual ports so that the box is symmetrical, so areos are the best option. Im trying to figure out how much port area i need for this sub. Problem is the tuning is so low that the port has to be long. Going a large port area makes it a really long port and making it smaller may give me port noise or not enough port area. Any help on this would be nice The sub im getting http://www.parts-express.com/dayton-audio-um15-22-15-ultimax-dvc-subwoofer-2-ohms-per-coil--295-514 The box will be made out of solid red oak wood made for counter tops. 1.5" thick all around. I plan to use 1" round over on top and side edges and then do a nice dark cherry stain on it.
  18. Heard that these subs like big ports but still not quite sure exactly how big to make it. The box is 4.5 cubes and I'd like to tune it right around 32hz. Haven't cut any wood yet so I still have time to size it up or down if necessary. Would a 5.5" x 12" port work well for a single 15? bigger? smaller?
  19. Hey guys, So I've decided to go ahead and build my own custom box for the first time but I had a few questions before I did so. I understand how to calculate port size, depth, tuning, box volume, the works, but the only thing I'm really unsure of is where the best location for the sub relative to the port would be. I am planning on running a Soundqubed/AQ HDC3 15 tuned to 32hz in a box around 4 cubic feet. To get it to hit hard should both the sub and port be facing toward the rear, top, front, does it really even matter that much? If possible I'd like to have the sub mounted upwards in the center of the box with a slot port on the left rear side (when looking into the car from the rear aka. drivers side) but am open to any suggestions that may lead to a better sounding setup. My car is also a mid sized hatch-back if that helps. Thanks for your help.
  20. soon to be LOTS of pics... start this a few days ago. i built a prototype awhile ago but looked like shit, so this is the FINAL concept with the built in amp and even some lights. not the best picture taker, sorry. and some are working at night with poor lighting. pictures of the starting holes for the dual dayton RS100-4 speakers. also shows my HAND MADE circle jig able to cut holes up to 40" in diameter
  21. wall port tuning help

    im building a wall for 4-15" HDC4s, 16.75ft^3 before sub displacment, tuned 37hz, 17in^2 per cube port area. each sub will be running of a BC3500d from crescendo. so far my box design... will simply sliding the port to the center and putting 2 subs on each side effect the tuning if i keep the port length and area the same? i like the look of center ports alot more then driver side ports......
  22. Which way should I face my subs and port? I am leaning towards firing the subs up and have the port firing to the rear? I currently do not have a design plan yet due to inexperience with designing a subwoofer box. Also to save on box space would an aero port be more suitable for my box build and maybe be better than a slot port?
  23. Found this while trying to figure out what is the proper fusing for my applications. Site has a TON of quick reads on car audio things. Explanations that are quick and will get you into a topic. http://www.teamrocs.com/technical/
  24. Need Help With Port Length

    Well, here I am again up at 1 AM, this time on Christmas, about to lose my mind trying to design a box for my (2) SA-18's. I've got all the measurements entered into Torres (will list below) and have got the cubic footage and tuning I want, now my problem is trying to design this box on Google SketchUp, i know the port length is the measure down the center of the port and the physical port length is the measure of the actual wood used, but i can seem to transfer these numbers over too my design without it making me want to blow my head off. If I use the physical port length, the actual port length isn't right. If I use the actual port length, the port doesn't bend like it says it should. I don't know what measurements to use. If someone could just toss this box together on Google SketchUp and post a screenshot with the measurements shown, that would be SO helpful. Thanks, and Happy Holidays. -EraOfDiscovery (All wood is 3/4") Outer Dimensions Box Height 27.75" Box Width 48" Box Depth 27.75" Gross Volume 18.54 ft3 Net Volume 13.48 ft3 Port Height 26.25" Port Width 8" Port Length 25" Physical Port Length 16.25" Port Bends Yes Port Area 210 in2 Tuning Frequency 32hz Common Walls 3