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Found 60 results

  1. So I have been trying to calculate my first 4th order for 2 orion hcca 10s. I have started with having a seperate sealed chamber for each sub with 0.625 cuft each and a common ported chamber of 2.5 cuft tuned to 45hz. I was just wondering how much port area I would need? Also if the airspace would be fine? Also I went for a 2:1 ratio since that was pretty common, what would be the advantage of going to a bigger ratio like a 3:1? Ive heard these subs like smaller enclosures so I didnt want to get to big. Thanks!
  2. I'm looking at building my first 4th order for a sundown zv4 rev2 15"d2. I have experience building custom boxes but have never built a bandpass. I'm not sure on what ratio to go with. I like lows but would really like something musical. It's going in a extended cab f150 powered by a shark [email protected] Could someone tell me how many cubes for the sealed and ported side and how many sqin my port should be and what's the best to tune it at? Any info is greatly appreciated!
  3. I've been helping a buddy install a system in his 2016 Jeep Wrangler JK. I finally have enough pics to start a build log, so I'll be loading all of them up over the next couple weeks. The requirements were simple: he wanted (4) 8's or nothing at all. Silly? Maybe; but we met the requirements and hope to be banging before the end of the year The stock sub (an 8x10) has 4 voice coils Ran some numbers in TermLab at first, but then switched the design over to WinISD. Came up with this size enclosure: That router feels good man Went with PSI-8's with High Performance suspension for 600Wrms per sub We were jammin some of that good techno The original plan was to have a few tube ports, but I had a hunch that they were too small. Thats about the time that Triticum came out with his port velocity calculator, and I realized the port velocities with these small ports would give me the tuning we were wanting, but also gave us almost 100 m/s port velocity (yikes!) Then the design changed to have a properly sized port attached to the back panel, bringing the velocities down to around 25-30 m/s I didnt really trust my kerf skills yet More pics coming tomorrow. Thanks for looking!
  4. Ok I have a 04-08 supercrew f150 with a seat lift kit installed. Will be putting in 2 skar zvx 8d2. With the 4th order box right now I have 1:1 ^3 sealed to ported. I have been doing lots of studying on Pollyfill. There is a proven method of using IM-SG SMD to measure the gain of ^3 with adding Pollyfill to a box the video was done by demore engineering. They added Pollyfill to a box and added 20% more box volume by adding Pollyfill. the problem is I don't know how much Pollyfill they added to achieve 20% volume increase. So what I'm trying to accomplish is after adding Pollyfill to sealed section having my box volume 1.3^3 for both subs giving me perfect sealed size for the subs which will give me closer to 1:1.5 ratio of sealed and ported then Pollyfill the ported section with the end result close to 1:2 ratio of sealed to ported. I've had multiple people tell me I'm crazy but numbers are saying it can be done if someone knows how much Pollyfill= ^3 % gain. Thanks in advance!!!
  5. I'm trying to design a 4th order for my Dodge charger, but I'm not familiar with bassbox pro. Just wondering how everything looks. I found a design on here that was almost exactly what I needed, but not enough space on vented side so I did a little tweaking. Going for 45-50hz with 2 cubes on sealed and 4 for ported side, for a 2:1 ratio. Not everything is filled in, like fb or f3, but just wondering if it seems solid. I couldn't put the contraltos in as drivers so that it will tell me everything, cause I couldn't get the driver list to update, it kept having an error.
  6. 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
  7. Look over my 4th order specs

    Hey! I'm working on a build log for my friends box that I'm designing, and I just wanted some who's designed some of these (especially isobaric) to take a gander. I wrote my own 4th order calculator in Java and posted it before I figured out there already was one online (fail). The specs are as follows: Enclosure type: Isobaric 4th Order Bandpass Subwoofers: 2 SoundQubed HDS-2.110 600WRMS F(s): 31.63 Hz Q(ts): 0.519 V(as): 1.97 ft^3 Vf: 0.52 ft^3 Vr: 1.101 ft^3 Qbp: 0.71 S Factor: 0.7 Fb: 43.53 Hz Desired F3(L): 26.8 Hz Passband: 26.8 - 70.72 Hz Gain: 0 dB Also the port specs were kind of crazy. The minimum size was 11.24" diameter and 78.84" long. I'd like a shorter port but the only way to do that is decrease diameter which increases air speed and might cause port chuffing. Thanks a ton!!!
  8. 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.
  9. Parts of this log will be copied over from where I currently have it on CACO I just wanted to share it here since I'm a new member started working on it in early December it's a slow project. Well for a long time I'd been trying to sell my Grand Prix and just couldn't seem to get rid of it. Guy offered to trade me a Jeep and I've always wanted a jeep so despite the Jeep having 250K miles I took him up on it. The interior is super clean and the outside is in good shape as well. Rockers are a little rusty but that's a Michigan Jeep thing.The plan for the Jeep is for it to be a winter beater/audio ride. Trying to keep the salt off of my Duramax. As far as the audio goes planning a B Pillar 4th for 4 18's on roughly 8k. From my rough measurements today I will have 46 cubes gross to work with. Progress will be kind of slow as I'm currently laid off. The goal is to be finished by whenever the first show in Michigan is. Will be primarily competing in IASCA and ISPLL. I always wanted a cool build log name even though it's lame.Builds that I'll be pulling some inspiration from include, Galen Winesette's Jeep, Chris Russ' Jeep, and Don's TDH Jeep.Tenative Equipment List:Electrical2 Mechman 320's Externally RegulatedFull Throttle Group 31 for under the hoodJY Lithium (Leaning towards 80 AH)Welding Cable 2/0 (Lots of it)ILL Customz Battery Terminals Clarion CZ702 already have (unless I find a great deal on an 80 PRS)4 Cascade Omega Neo 18's (building motors like Robs, PSI recones likely)Amp must be under 8K class restrictions (Flatline B2A, M1S, AB 750.1)Not sure on mids probably Crescendo PWX's or McLaren4 Channels (Really thinking PPI 900.4's)Other:Welder (Really want a lincoln Power Mig 210 with the Tig torch)300 or so feet of steel 1x2 tubingAir Bags of some sort I'm sureBHE 4th order design or something similarVolt Meters Out with the old: In with the new: Like I said it's clean: Going to be a shame to gut it from the B-Pillar back: Steel sets:
  10. 4th order help(stuck for weeks)

    https://scontent-atl3-1.xx.fbcdn.net/v/t1.0-9/13322194_1044872515596851_1106270700946616662_n.jpg?oh=6a5a640a7b1675fa1cddeb15a29cdb4d&oe=57EC3928 I am wanting to build something like this but can not find any info. Size - Does not matter (2 seater Mountaineer gutted) I have (6) 8" mid bass (2) 6" 3 way component (2) 5.25 3 way component AND 1 hybrid 15" Sundown Audio ZV3 Soft materials using DB Platinum Series 15 hardware I will be running 2000 watts rms
  11. I'm almost done with my new system. I have 4 cvr dual 4ohm 15s for right now. I have a QZA4100D pushing them and everything is wired down to .5 ohm. I'm waiting on wires to come in so I can upgrade my old ones.
  12. Hi fellow members! I have an 04 quest looking to do a 4th order in the trunk. I have 4 american bass XFL 12s. looking for a 2:1 Would be greatful for some help thanks! So far i have sealed section = 3.315 ported = 6.63 port area = 99.45? I'm having a bit of an issue with the port size what tuning do you guys recommend? along with dimensions?
  13. 4th order help

    Hey guys, I'm trying to build a fourth order for 4 soundqubed hds200 15's. Need help because I've never built a box like this before and I want some input on what people think on what I've got so far. On the ported side I plan on giving the woofers 4.5 cubic ft each so in all a total of 18. And on the sealed side I plan on giving them 1.5 cubic ft each so a total of 6. I wanted to tune it to around 32 hz so for the port I plan making an 11x11 square port that's 3.25 deep. So give me some feed back on whether this sounds good or bad haha, thanks.
  14. Any input is appreciated, thanks Vehicle : 2000 Eclipse Space available : ( Depth 22 x Width 32 x Height 16.5) Subwoofer make and model: 1 Dc XL m2 15 on 3k Type of Port (Kerfed, Slot, Aero, etc.): Need help! Everyday Music Tuning Freq : 31-32 Hz ? Volume : 4 cubes? Dc says Atleast 3 Questions: Need help on box design. 4th order or aero port box? the sub needs too face forward (unless 4th order). What will be a better design for the sub? How many aero ports and what size would be needed? Can the port be forward facing? external aero port? can the port and sub face forward if not sealed but a good fit? this the same car with a side firing port https://www.youtube.com/watch?v=ELV1...lbN7SQ&index=7 . This is with the external port and forward firing https://www.youtube.com/watch?v=MWKRw-zxjPo . Feel comfortable with building any design and have the tools to do so (or atleast try) Thanks for your time!
  15. Hey everyone its been a while (like a year, seems like a while to me) since ive installed anything into my car. I have a 12 in p3 I would like to put into a 4th order bandpass box in the trunk of my car. After reading about 4th orders I would like to go with a 1:2 ratio. The sealed side being .83 cu ft and the ported side being 1.62 cu ft after displacement. Tuned to about 47 hz with about 15 in of port per cube via a slot port. This will be the first 4th order I have built or designed so if I may have this all wrong. Just wanted to see what you guys think about the idea and specs of the box?
  16. So i have some plans for my truck for this year. Back seat is coming out, & i'd like to get 2 HDC3 12"s or 15" inch subs from soundqubed. So i need your guys help with a couple things, Who designs the best 4th Order's on this site? & Also who builds them good in the Socal area. I'd love to help with the box build but have nothing to cut wood & no experience with it, so doing a 4th order for a first box doesn't seem like i'd get what i want out of it. The measurements i have to work with because i don't want to go above the window line is roughly 38" from side to side, 28" from front to back, & 30" tall after a false floor. // As stated above i'd prefer to have the 12" subs, but am open to going to 15" subs. I listen to a wide variety of music, but mostly Underground Hip Hop & EDM. As for goals with this box i just want it to hit a wide variety of notes with a nice punch. More so musical then Loud, dont plan on metering or anything of that nature. Open to suggestions, & any help would be appreciated, Thanks SMD
  17. whats up guys, long time form creeper 1st time post, so I picked up some brand new 2014 Kicker L7's today and a Hifonics Zeus 3200.1... I had a Brutas and a Addictive audio V2 12 in a 4th order.. My question is is a 4th order possible for 2 12" L7 in a 2012 impala I already have top deck cut for old 4th order 6.5x9 port, I know new port will be MUCH bigger but im lost on building this box I cant find any answers or ppl who have done it I want SPL not Quality... ANY help or ideas creating this box would be great! thanks guys.
  18. Hello Everyone, Introduction first: My name is Kaleb Carter, I am a 19 year old College Student at University of North Florida. I work full time for Florida Blue as well as being a full time Mechanical Engineering Student. I live in the dorms so I only get to work on my build on the weekends in my dad's garage when I'm not too bogged down with work. I drive a 2002 Ford F-150 Supercrew that I had been saving up for since I was about 8 working for my dad cutting grass, cleaning houses, being a farmhand,doing landscaping, etc. It was paid off the day I had the keys in my hand. Also, I pay for my equipment 100 % though dad helps me out with materials. On to my dad, him and I are the only people that touch my truck. I've been a basshead since I was little because of him. He used to be a professional installer (before I came along) so I was bumping in the womb in his show car. He helps me out a lot with installs and I try to learn as much as I can so that someday maybe I can know more than him some day. (I don't think it'll happen) Anyways, enough with that, let's get y'all some pictures! Truck 2002 Ford F-150 Supercrew Equipment: XS Power D3400 SkyHigh 1/0 & 4 Gauge Wire and Fusing Big 3 AQ 2200d AQ 200.2 2 Soundqubed HDS315's in a Ram-Designs 4th 6 Soundqubed Pro Audio 6.5's 2 Soundqubed Pro Audio Tweets 40 Sq ft of Soundqubed Q-Mat
  19. im going to order a AMERICAN BASS DX154. bc i want to make a 4th order for the frist time. its going to go in my den. im going to use it as a surround sound subwoofer im trying to get it as musical and spl as posibile its beening powered by a crown xls1000 can any one give me an idea of how big of a box i would need or design thanks max dimensions are 40 wid x 28 deep x 36 tall tunning around low 30s
  20. Trying to plan out a build. We will have about 1.8 cubic ft of space to use here. Dimensions being 22X16X11 roughly. This can change some, d2 and d3 can be larger. I am wondering if two Kicker L7 10's would be a better choice than one 12" L7 in a fourth order box. Initially I wanted to do the two 10" in a fourth order but the space isn't there best I can tell. This will be going in the bed of a Polaris RZR 1000. I like the bandpass idea because the woofer is enclosed, but....if I do the 10" they will be up against the front of the bed and protected. Just thought I would see who had some advice here. Here are a few pics of the machine which already has a Kicker 800.5 amp running for Kicker 6.5" and on Kicker Comp RT. WE NEED MORE BASS!
  21. So my Wall seems to be getting a ton of flex in the Rear of my Tahoe. The hatch is Flexing pretty bad even though I thought most of the air was only hitting in the front area. I realize now that the problem is the shop that built my wall did NOT seal it off at all. It's very close to the Roof Lining but not 100% against it. And the Rear Side Doors look like they need a lot of MDF/filling/etc if I ever want this thing playing the way it should. I've heard plenty about Great Stuff Spray Foam with plastic or something. I've also heard about using Cardboard in some way (not sure I understand that). I'm not very knowledgeable about doing the "install works" myself and just would like to know whats the best route to get this thing to stop getting huge air movement in the back. And I do hope one day to make my Wall colored somehow (vinyl?) so the whole interior looks just as good as it sounds. Any experts on this that can shed some light for me? If you'd like me to post some specific pics of certain areas I can do that. I just hope I can get some better info and EXPLANATION of how to actually do this stuff! Its not too helpful to me to just say "use spray foam" or whatever. I need a little more detail granted I've never got involved in anything like this myself. - Thanks Guys!
  22. Just bought the Suburban about 2 weeks ago. All the bag work was done when i got it. Its on 24s and the compressor for the bags is belt driven. Its already a head turner seeing something this big going down the road with front all the way up and the back down lol but now its time for the audio. Im doing 6 Sundown X 15s in a 4th order back at the c pillar Im gonna run 3 of the new Sundown SCV amps(not sure which ones yet) but gonna use some cheapos till there out and i have the cash. I had a big build in my car and sold most of everything so now i also gotta slowly buy some electrical back. I just have 2 xs D3100 for now and stock alt I already have the subs. Pics of the Suburban: At Sundown Headquarters Picking up subs from dealer
  23. Hey i have a few questions about 4th order for my hatch. Was at the pawn shop and they were selling two of the new type r 12" for $120... couldn't pass it up. they have a couple small cracks in the cone but both play as they should. As far as design, doing 2cu^ft sealed and 5cu^ft ported 4th order, my questions are as followed. For the two 12's i should have around 80sq inches of port correct. So if i did a 9"x9" port it would be 14.13" long for 45hz tuning. Should i face port toward the roof? Or you think there would be added gain to kerf port toward the rear (cabin gain possible?) Any input is appreciated, ive always ran ported boxes, this would be my first attempt at a 4th order. set up 1991 civic hatch (work car mpg+) jvc head unit 6.5" focal component in front Have two 12" alpine type r (new style) getting Hifonics 2200wrms cea compliant (i know there are haters...) plan on running 800wrms to each sub, want to have room to play with if i change subs in the future. Putting two pairs of 4" speakers up front to help. Focals sound amazing with one sub but i know they wont be able to keep up with the increase in power and addition of another sub
  24. Hey guys, i've completed my first sub/port forward build in the 2013 Camry and I'm pretty satisfied with it for now. I'm hoping I can get educated a little here for a future build. I would like to learn more about the design and characteristics of a 4th order. My trunk is fully sealed from the cabin right now. I have (2) DSS Ethos 12's on strapped Q2200's. Electrical Mechman 240, and a bank of 3 Autozone Platinum H6 AGM's (210ah combined). 2 runs of 1/0 front to back. No runs of 1/0 negative front to back, but am considering doing it because of voltage drop issue. Want to reinforce all my grounds... Can someone send me some decent links on how to learn the basics behind a good 4th order design? I understand its a ratio thing, and that's about all I ever get back in answers. Tune to around 45hz and let her go. I would like to get deeper in to the understanding of 4th orders so I can design an enclosure to house the 2 12's and get a little extra output from them. I guess what I don't understand is, how do I design the port to fire into the cabin and go about tuning it correctly? I think for what I'm looking for and going from the very limited knowledge I have, i would be looking for a 1:2 ratio, that way to gain a little more output and keep my frequency range a little more flat for music. This is a daily driver and not a burp vehicle, so please keep that in mind. Thanks in advance for any advise I can get... I don't mind doing the reading and research, so if someone can point me in the right direction, that will be great. Then hopefully, I can ask more knowledgeable questions in the future...
  25. So im doing a trunk build on my caddy and i was wondering about ports. i was thinking 4.1 sealed and 7 cubes ported. The graph it made in winisd seemed pretty good so i might go for it. Of course i have the best and worst car to do a build, cant fold the seat down so i need to cut holes in my rear deck for the port, so the question is should i do a regular rectangle port / slot port or areo port / pvc tubes? and how much port area? i'll provide some pictures for better understanding what im going to do. the last one is the rear view, since im doing a slanted baffle to make the sp4's fit. tell me if im missing anything that would help.