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Found 17 results

  1. *************[Note: Since photobucket decided to nerf everyone's accounts, a lot of the pictures in this thread are gone. I intend to fix all of the posts but it will take quite a while. Photos start on page 29 currently. In the meantime all of the photos are available on Facebook by searching #projectflexington and many are on Instagram under the same hashtag. Thanks for looking and please don't be afraid to comment! ]************* So figure it is time to start a build log for my 6th order wall. Been working on it for a few weeks now. I'll start by posting the equipment I'm using for the build. Electrical: Batteries: 2 nsb170fts and 2 stinger group 31s: 3 banks of super caps: 2 singer 320amp alternators (these came with the truck, I'm currently in the process of redoing the bracket to strengthen it and add a tensioner but I'll elaborate later): 4+ spools of skyhigh 1/0, knukonceptz 4/0 ofc for alternators (will post pictures later) Terminals, marine grade ring terminals lugs, properly crimped with double wall adhesive lined heat shrink: Subs are 2 sundown x15s rev 1(will be rebuilding for level 6 18s at a later date): Sub Amp, kicker warhorse: Head unit and tweeters, Sony dsx-s210x and 4x Earthquake Screamers, 1.5" 150wrms per pair silk Dome tweeters with replaceable voice coils: Mid bass, 4x dayton audio 10" pa woofers, 300rms each: Mids are tbd, probably 2 8" midrange speakers. Lots of Baltic birch: If you enjoy, please comment!
  2. I’ve designed an isobaric 6th order series tuned bandpass enclosure for my wife’s car. I want to build a series 6th for experience and for science. I have a firm grasp of the ins and outs of WinISD, but I am new to BB6. So I started with measured values from my ported design with (4) 15’s, which I have dialed into WinISD and is pretty accurate. Then I modeled the same box in BB6 to see the variation between the two programs and measured values. That gives me a baseline ‘feel’ for BB6. Can someone check my design? I plan to test and modify the design to optimize the performance, and then I’d like to funnel that real data back into BB6 so I can really get a better feel for the 6th order designs in BB6. Here’s what I’ve come up with so far… This got me the most area under the curve but also a decent low end response: [INSERT PIC HERE. I COULDNT PLACE IT HERE WITH DIRECT UPLOAD] Low port (for the design shown above) is 6”H x 3”W x 33.3”L, with 2 flared ends High port (for the design shown above) is 8”H x 3”W x 8.4”L, with 2 flared ends Goal was to keep port velocities under 30 m/s, cone excursion within limits, and boost the low end response without getting a severe dip between the two port tunings. I really couldn’t bring the high tuned amplitude response down, maybe I need to widen the bandwidth? Figured widening the bandwidth would cause an undesirable dip in the middle. *** Here’s the real measured TS parameters (via IM-SG) for the well-broken-in pair of Pioneer TS-W3003D4’s: Dual voice coil, wired in PARALLEL (for measurements below) and both subs wired parallel to the amp. Re (parallel, each sub) = 1.6ohm Fs = 31.4 Hz Vas = 2.822 cu ft Qms = 3.706 Qes = 0.494 Qts = 0.436 Mms = 126.9 g Cms = 0.203 mm/N Dia = 10.2” Sd = 81.7 sq in Xmax = 14mm one way I’d like to set the tuning for the low side at 31ish Hz and tuning on the high side at 63ish Hz. The subsonic filter setting will be determined via testing after the box is built and tuned to its final state. I have about 5 cubic feet total to play with for this isobaric series 6th setup. I can toy with the final XYZ dimensions, I’m mainly looking for a solid set of values for volumes and port areas & lengths (if the ones I calculated in BB6 are not suffice). Rectangular ports are preferred but I can do aeroports or kerfed circular port if that’s a better route. I am competent with woodwork. I’ll be starting a build log for this box design and its installation. Planning to include a lot of measured data (IM-SG and AMM-1). Really stoked for this build. Thank you in advance!
  3. Im really curious if you guys were going to build a van with a big setup (160+) for demos, to be musical around town etc. The van has to look good and still be very very driveable. What type of van would you use and why? Also would like to know what your favourite vans are that are currently competing or have in the past? Favourite by looks, favourite by their setup, or favourite because a mixture of both. The more pics the merrier.... Thanks for your time
  4. I was reading up on 6th order bandpass boxes and I ran across some patents. I found a lot of interesting design information in these patents, but no calculations. Whats the point you ask? To understand better how bandpass boxes function. Knowledge is power. Most of the patents have a lot of blah blah blah near the beginning of each patent since justifying the patent is first and foremost. Somewhere past halfway, each patent lists some design tips, tricks, rules, etc that are great and thats where the interesting portions begin. I recommend to have the attached pictures (at the beginning of the patent) opened on a second screen so that you can quickly reference the numbers identifying each component and its importance in each system. 4th order: https://www.google.com/patents/US2689016 Parallel tuned 6th order (Bose): https://www.google.com/patents/US4549631 Series tuned 6th order: https://www.google.com/patents/US4875546 Series and parallel-series tuned Nth order (8th and higher): https://www.google.com/patents/US7103193 Helmholtz Resonance, the concept that drives ported enclosures and all 4th, 6th, etc enclosures: https://en.wikipedia.org/wiki/Helmholtz_resonance I've been reading through these for a few days now trying to understand whats going on with these more complicated arrangements and I think some of you will benefit from the information in these patents. Enjoy.
  5. I've had about as much fun as I can I think with the 4 subs I have in a regular ported box, so I'm thinking of moving up into a sixth order. For the past 6 years or so I've used WinISD Beta, and I am comfortable with using it to model ported enclosures... Yes I know it's not accurate in an automotive environment because it doesn't account for cabin gain, however I've modeled 3 or 4 enclosures in it and replicated a few more and can see how adjustments apply in the real world... so we can get past that right away, thanks. Not trying to be rude, but every time I say WinISD there's always some one who's gotta throw that in... So I have 2 questions really: 1. What are the design considerations between a series tuned 6th and a parallel tuned 6th? Can WinISD modeling be used interchangeably? I understand I would have to increase port area on the high side, but is that it? 2. What are the performance differences between the two alignments (series vs parallel)? Is one more prone to unloading? I would think a series tuned would do well until below the low-side tuning, but a parallel tuned in my mind seems to be riskier. Simply unsure. Appreciate any input you got.
  6. Decided to make a seperate thread for this build as it does not really have anything to do with my current big build here: http://www.stevemeadedesigns.com/board/topic/159860-the-roadmonster-wagon-build-6th-order-bandpass-success/ here are the posts from that thread: 6th Order Bandpass Enclosure for Alpine Type R 12 So, for my first side project! I recently aquired an Alpine Type R 12 very cheap. Came in an OBCON vented box. Decided to have some fun with it. I've always wanted to try a 6th order, and this is the perfect time since I'm waiting for the good stuff. At first I was planning on building an ABC box but decided to give a 6th order a chance (can always convert it to an abc later.) My goal is to get good response from 20hz to 60hz+. According to winisd, this box design should meet those requirements. Here is the response graph compared to a standard 40hz ported box: This is the fun part. The cone excursion graph is the fun part. 1000watts and keeping control down to 22hz! Quick sketchup. Model not finished, but it gives you an idea of the layout. Wood is cut and ready, I'll be working on assembling it tonight. 2 4" precision ports per side, externally mounted. Rear chamber ports will be around 33" long and front chamber will be around 15"
  7. Hi, my name is Sami. Im 19 years old basshead from finland. And this is my mondeo And Some Vids Whole car flex https://www.youtube.com/watch?v=CQ8QnBwXuvU Windshield flex https://www.youtube.com/watch?v=seNPKRrXoJI Hairtrick https://www.youtube.com/watch?v=UkRDXZ7O7vg Bass cracks my frame https://www.youtube.com/watch?v=mO77UHqYyC8 More Bass videos here! ----> https://www.youtube.com/user/NosSamiAudio
  8. This build has been floating around Facebook recently so i thought i would make a re-build log to show off what work i did to EricR's "Pimpala" for my good friend Taylor. heres the build up until the point my friend purchased it. http://www.stevemeadedesigns.com/board/topic/195065-the-pimpala-usaci-sb3-build-log-smd-vm1-and-om1-flushed-in-the-dash-3-dc-level-6-18s-with-powder-coated-ti-baskets/ He recently purchased the vehicle (just the shell, no equipment) and after a week or so of bumping the 4th order with the sp4s he's owned for a while, i convinced him to trust me, and let me work some magic....que the conversion from a 4th order for 3 18s, to a 6th order for 2 18s. But not just any 18s, the mother of all holy woofers (to us)... THE TEAM Fi......weve waited for the day to be able to own and cherish these subs, and Scott at Fi hooked us the FUCK UP. Definitely will be buying new from him from now on list of equipment: Current: 2 x 18" Team FI 1 x DD M3b at 1ohm (zero voltage drop) 1 x bank of caps 1 x 300a GP alt 3 x Soundqubed 6.5" mids (per door) 1 x some shitty 4-channel Final: 2 x 18" Team Fi 1 x DC 10K (sitting in the garage waiting for electrical) 1 x 40ah Juicebox Lithium (getting repaired by Kevin, ETA Dec. 1) 1 x 300a GP alt 3 x Soundqubed 6.5" mids (per door) 1 x some shitty 4-channel for now now for some pics..... We asked everyone at Fi to sign the subs for anyone who doesnt know how much we run Fi
  9. So i recently got a pair of the new sundown E8 v.3 subs, dual 2 ohm. I've been messin around on winisdpro and i've come up with a parallel tuned 6th order for these babies with the objective of higher efficiency at higher freq over a conventional low tuned ported box. These woofers also appear to be highly oriented for ported enclosures according to the EBP so i assume they wont do too bad in a 6th order. *I'm curious to see what other more experienced bandpass experts have to say about my design in terms of its port placement, cu ft ratio, port area, whether its COMPLETELY WRONG BRO!!#!, ect. *I don't care for responses like "ur gonna blow ur shit up" and "fuck 6th orders" by people who must have been abused by 6th orders in their early childhood, im curious about sixth orders and i wanna start somewhere so don't even bother brocephalopod. *really just lookin for new knowledge and advice on 6th orders with 8 inch woofers which seem to be quite rare. -------------------here's teh data: - front chamber is .53 cu ft tuned to 66 hz w/ 16 sq in port area - rear chamber is 1.49 cu ft tuned to 36 hz w/ 24 sq in port area - subs will be inside rear chamber firing into front chamber - ports are facing opposite directions, if looking straight on at woofers, rear chamber port opens left, front chamber port opens right. (donno if this matters, i just didn't want the two ports directly next to each other so i put em on opposite ends) heres a link to my sketch up download: http://sketchup.google.com/3dwarehouse/details?mid=5bcfd206989351a721e84b8eebc8573c the gain in winisdpro showed as following from 30-80 hz 5 hz interval with a 25hz butterworth infrasonic filter and 100hz butterworth lowpass filter enabled: 30 (-8.1db) 35 (-.52db) 40 (1.2db) 45 (1.7db) 50 (2.4db) 55 (3.2db) 60 (3.6db) 65 (3.3db) 70 (2.4db) 75 (.89db) 80 (-.9db) tks
  10. Hey guys! We recently tore down our 4th order in the Expedition, 4 zv.4 18's on ab750.1 for an attempt at a 6th order!! This is our first attempt ever at a 6th order in general so might as well share our mistakes and progress with you fellow bass heads! Our 4th order managed a 151.2 sealed on dash, we are hoping for 153 with this build! Bandwidth estimated, 18-55 htz! Stay tuned! Will update over time, (not working on it every day)! Time to drop 500 bucks on wood. Ill take em all! LIL MAN PUTTIN IN WORK! Just a bunch of beginners building a wall nothin out of the ordinary Ran into a space issue with the 45 degree angles.. Decided to go with the Corners to add space. Here at beginner central, We like to complicate things as much as possible. Well, in a sense save some time! lets cut through all the baffles at once! YEAH! MERICA! Thanks for tuning in, Current progress after 2 days of work, Top, corners, sides, bottom, and one baffle is in! more progress to come! Any and all criticism and/or comments welcome! BASSHEADS!
  11. 6th order bandpass

    This is my first 6th Order box I have attempted to create. For those of you that have the experience, do you guys mind telling me if this box looks promising? It's going to hold 2 Power Acoustik Mofo 15's. It is tuned to 32hz / 51hz
  12. Types of Walls

    Can you explain to me 4th order and 6th order walls? Also whatever else there may be. Maybe some pictures or video links if you got them would be nice too. Still learning here. Someone suggested I do a 6th order wall and I am like what...
  13. 4th orders!

    Alright folks ill try to keep it as short and sweet as possible, im doing this from my phone so bear with me. I recently designed and built a 4th order with 2 Soundqubed sdc 2.5 10's on an apsm 1500 wired to 1 ohm. specs are as follows 1.17cu sealed 2.15 cu ported tuned to 54 and about 40sq in of port. The damn thing is tuned too high for my liking but this is my first attempt at a 4th order so its too be expected that i did something wrong. This box has a range of about 35-60hz, yesturday at a comp i peaked at 58hz and did a 137.7. when he told me my peak i about shot myself when the judge said 58 hz. As a guy who enjoys his Decaf 58hz is considered a sware word lol Anyways i would like to bring my tuning down the next time i build a box like this. first step would obviously be to tune more twards 45hz. But as to finding the correct size to build the sealed part i am lost. i know it has to be bigger but by how much? im trying to get my playable range into the 27-47hz area because my current box doent get low like id like it to, while it sounds great it falls flat on its face when i play anything below like 35 hz.
  14. hi, this is my current project, its a 1994 toyota torago gear so far : 4 dc 5k : 4 x 18"LVL6 : 300 amp alt (exessive amperage) : gladen sql dual midbass 8 sets (16 mids and 8 tweets) : 2 mosconi 4 channels : 6to8 processor : heaps of shok cable : 4 bulk pack dynamat gear to get : blaupunkt new york h/u : 12 fullriver hc110 ok so final box design is still up in the air so what i am doing for the moment is making a nice solid foundation to work from, only just started but will update when there is more to show... onto to some pics of the gear and car front stage cable subs amps some of the build so far ive got more pics of the same so i wont bore you with them lol. a question for anybody running this gear over there, will the amps handle .5ohm (as long as power supply is ok) and are the subs happy with 4.5-5cubes? cheers and any comments are welcome!
  15. In a Hummer H3, 1 atomic apx-18 d2. Would a 4th order (rear chamber 3 cf sealed, front chamber 6 cft tuned @ 72hz 100 sq inch of port 8" long) or a 6th order (i would need some help from the pros) which one would i get the best spl from? thanks
  16. Some real time footage of Justin Henke's toyota truck, 2 dc 5ks and 2 dc lvl 6 prototype m2 18s in a 6th order. watch in HD more videos to come this thing plays loud and loooooooooowwwww. idk if he has an account here on smd or not