Home Theater Forum and Systems banner

llt

  1. Single LLT vs dual sealed vs dual small ported

    DIY Subwoofers - General Discussion
    I built a 12 cubic foot LLT about 3 years ago and I am very happy with it. My issue now is that there is not much transparency with a single sub. If you sit in one corner the bass is amazing, but it drops off drastically as you move away from the corner. The LLT was my first build and I did not...
  2. First LLT - w si ht 18 - advice?

    Ported Subwoofer Build Projects
    I have 51ft^3 to work with but going with WinISD pro it looks to model well at about 24 tuned to 17 for two drivers. I come up with a 18 x 7 port that's 39.5 inches keeping the air velocity around 60 fps max. I'll likely make it a very large kerfed flare (they look sexy) Would there be any...
  3. New LLT for TC Sounds Pro 5100

    Sealed Subwoofer Build Projects
    Last year I built a LLT for this very same sub. However, during the design phase I missed a dimension and the cabinet never met it true potential. I am looking to redesign a new LLT for this sub. I have a few ideas jumping around in my head abd a few questions for the folks. I would like to...
  4. LLT design with Maelstrom Gen II and LMS ultra

    Ported Subwoofer Build Projects
    Hello:) I currently have one Maelstrom 18" Gen II and one LMS ultra 18", each in a 3 cf sealed cabinet, with their own EP4000 amp. I wanted to look into building 2 new cabinets that are LLT. I must forego a sonotube, as I can only do the following dimensions: 17" deep, 85" high and 33" wide...
  5. Can this sub work as an LLT?

    Ported Subwoofer Build Projects
    Currently have two of them sealed. Now hopelessly addicted. Can this work tuned to 15hz? 15" Subs from Epik Empire T/S Specs Znom 8 ohms Re 5.7 ohms Sd 805 cm^2 Pmax 400 W Mms 200 g Cms 250 uM/N Vas 231 L Fs 22.5 Hz BL 23 Qms 4.1066 Qes 0.3061 Qts 0.2848 Le 3.15 mH Spl 91.192 1W/1M Xmax 13...
  6. Si 18 llt

    DIY Subwoofers - General Discussion
    Can somebody model the SI 18 in an LLT. I am currently underway and have no access to WINISD. Thanks.
  7. si 18" llt need clarification

    Ported Subwoofer Build Projects
    Long time lurker, first time poster. I've recently sold my dual psw505 sub's and am looking to build a llt using a 18" si driver. I am working in a space that is 2' x 10' but the sub must double as a bench seat when not being used. I haven't purchased an amp yet but am looking at a ep4000 in...
  8. Hoping to build a LLT, please help

    Ported Subwoofer Build Projects
    Hello fellow members, I am attempting to plan a LLT sub but I am in need of help. I am planning on using a Def Tech 15 that they sent me by mistake as a replacement. The obvious problem is I have spent countless hours searching on Google and I cant find any specs for it. Finacially this is my...
  9. TC Sounds LMS-R 15" LLT Build

    Ported Subwoofer Build Projects
    I have been doing some extensive reading and now would like to get thoughts on the direction of my first DIY sub build. So far I already have the following. Driver: TC Sounds LMS-R 15" Amp: Dayton SA1000 2x 6" Precision Ports This box will be an LLT for home theater and be located in a corner...
  10. Dayton HF 15" LLT Build Thread

    Ported Subwoofer Build Projects
    I'm ready at long last to start my LLT build. My woodworking experience level is limited, but I have good tools, and ordered really nice 3/4" plywood that has Formica bonded on both sides at the factory. The material width is 21.6MM. I have never built a speaker, and my knowledge of electronics...
  11. Mach 5 18" LLT Sonosubs - "ShoNuff"

    Ported Subwoofer Build Projects
    I named these ShoNuff, because who cares. They're 13cu^ft enclosures tuned to 15hz. The sonotubes measure 26" i.d. No measurements yet. I hooked them up to my front main channels to check for air leaks. So far so good. Once I run my wires and hook it up to the amp I will post some...
  12. Can't find a sweet spot modeling drivers for LLT

    DIY Subwoofers - General Discussion
    I am working on modeling some subs with the intent of building a 24" Sonotube LLT with a 15" driver. I have looked at Dayton, Bravox (on buyout right now at Parts-Express.com), Soundsplinter, etc. I think I have settled on the Dayton Ultimax UM15-22, about 300L volume and a tune around 18hz. At...
  13. using CHT (eminence OEM) 18" drivers for LLT type subs

    Ported Subwoofer Build Projects
    I'd like to convert my CHT CS18.2 (dual 18") to two vented subs. This would be the first time I model/build a subwoofer. I'd like your feedback about the the idea in general and , most importantly, if this kind of project should even be considered by a noob like me. The drivers are...
  14. LLT vs IB in a crawlspace!

    DIY Subwoofers - General Discussion
    I got to thinking, I have a crawl space that is ~36" high underneath my theater space/living room/dining room/ kitchen. The house is a split level ranch, so basically, the entire main floor is over this crawl space, I would say it's 28' x 24' by 36" tall. I've been interested in building a...
  15. which 15" or 18" driver for LLT 13hz

    Ported Subwoofer Build Projects
    Which driver (only from ebay) would you choose for ported LLT around 13hz? box can be around 500 liters. Amplifier is American Audio V3000plus with 1900W/4ohm (bridged). 1...
  16. CSS TRIO-12 Horn Sub. VS. SSD-18 LLT

    DIY Subwoofers - General Discussion
    I do realize that these are two completely different designs and will produce different results, but, what I am asking is,rather, how would these two completed subwoofers sound in comparison to each other? Here are the two different enclosures that I am considering: 1. Going with an SSD-18 in a...
  17. Need help with 15" driver selection for LLT

    DIY Subwoofers - General Discussion
    Hey everybody! Thanks for the warm welcome yesterday. This is an excellent forum! I am looking for some help with an LLT design. I have read every post that I can find on it and I'm very intrigued by that systems potential. I've read through all of the helpful information put out by...
  18. LLT for TC Sounds Pro 5100

    Ported Subwoofer Build Projects
    I need some help designing an LLT for a TC Sounds Pro 5100. I have tried to model it with Winisd and the graphs look funky, and I know its not right. I'm looking for a tune <=15hz. I am not picky about port shape but, prefer circle. Would like to keep box below 8cf. I would like to not use a...
  19. Top drivers currently available for a clean-output LLT/EBS Sonotube Subwoofer

    Ported Subwoofer Build Projects
    This feel that I have read the very thread I am starting a countless number of times; my problem is that I have been planning an LLT for a few years now and during that time have selected several favorite drivers--only to see the manufacturer go out of business time after time! Avalanche, Sound...
  20. Replacement sub for LLT BOX

    DIY Subwoofers - General Discussion
    Hey everyone I'm looking for a little help in choosing my next sub for my ht. What I have it a 14ft3 box and a Oaudio 500w plate amp and I'm needing a new driver to replace the Dayton 15hf that was in it. Use will be 50/50 music and movies. I'm not real good at modeling so that's why I'm here...
Top