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  1. SI HT-18 v2, pre-order heads up

    DIY Subwoofers - General Discussion
    Last 2 nights to get a good deal on some next-gen HT-18's. I just grabbed one to replace a blowout (my fault, not Nick's; my HPF was accidentally disabled). Get 'em while they're cheap!
  2. Replacement for SI HT18?

    DIY Subwoofers - General Discussion
    So now that the bargain SI HT18's are no longer available, what is the "next best thing" to replace them in DIY builds? I'm looking for something similarly priced with similar performance if it available. I have heard good things about the Dayton UM18, are there other 18" drivers in the $150 to...
  3. Thoughts on SI HT-18 x 2

    Sealed Subwoofer Build Projects
    Looking at snagging 2 HT-18's before they go away but have some questions. From what I've seen these model good in larger boxes. What I'm looking at in WinISD as the best option is a 6 cubic foot box. I cant really go bigger than that with the space I have. Does anyone know of a flatpack for...
  4. Sealed HT18 - An Engineer's Take

    Sealed Subwoofer Build Projects
    This will be my first home subwoofer enclosure build. I did one MDF build in college some 10 or 15 years ago, but it was very basic. Here is some basic information regarding my build Driver: Stereo Integrity HT-18 Enclosure Type: Sealed Enclosure Volume: 5.0 cubic feet Number: Two...
  5. MFW-15 with Turbo vs. Stereo Integrity HT18 sealed

    DIY Subwoofers - General Discussion
    I currently have two mfw-15 turbo'd subs in a small room (not sure on square footage of room, but not big), they are co-located at opposite ends of the room, I have them tuned in well and calibrated and they do sound very good. But here's the thing, I am trying to reach about 12hz usable output...
  6. Stereo Integrity HT18 Shipping Weight / Size

    DIY Subwoofers - General Discussion
    Hi Just investigating the possibility of using a freight forwarder to get a SI HT18. Does anyone know the shipping height or weight? More importantly would be the box size, as I can guess the weight based on the driver weight. Cheers Mike New Zealand
  7. Si HT18 AVFORUMS UK GROUP BUY

    DIY Subwoofers - General Discussion
    Hi I've started a group buy over on the avforums over in the uk and although i've got a return email from Nick ! I still in the need of a shipped price / quote for 16+ ht18 drivers to my door step here in the uk.............If you see this thread could you please contact me via my email which...
  8. Stereo Integrity HT18 pls HELP with some questions

    Ported Subwoofer Build Projects
    Ill be short... 1. What I have: Receiver: Sony DA2400ES Sub amp: Behringer NU1000DPS Speakers: 4x B&W 601 S2 as satelites, central to come later... House:) 2. What I need to figure out: Location for sub (I'll use just one sub, maybe much later I will add more, so i have to place it wisely)...
  9. SI HT18 Build by RK

    Sealed Subwoofer Build Projects
    After reading several threads, decided on going with SI 18's sub's, just ordered them so I guess I have some time left for making final decisions. 1. Mostly 4^3ft sealed enclosure. 2. Considering Behringer iNuke NU3000DSP for the amp. 3. Should I go with Plywood or MDF So please advice if I'm...
  10. SI HT18 REW measurment, autoeq and minidsp need feedback from experts

    REW Forum
    Hello everyone I just finished my sub-woofer system project for my HT (you can see the enclosure design and construction here: http://http://www.hometheatershack.com/forums/ported-subwoofer-build-projects/70000-stereo-integrity-ht-18-alfa-74-project.html Basically I have a vented enclosure...
  11. A few details needed to build SI HT18 D2 Sonosubs

    Ported Subwoofer Build Projects
    So I finally will have some time to build my Sonosubs about 6 months after the tubes and drivers have been sitting in my music room. I'm trying to get the details together before I start. I have the Sonosub program and WIn ISD Pro. I'll be using a 24" Sonotube about 6' long tuned to around 15...
  12. Designosaur's ported 6cu ft HT18

    Ported Subwoofer Build Projects
    Today I officially started the build phase of this project. If you want to catch up, here's the original thread: http://www.hometheatershack.com/forums/diy-subwoofers-general-discussion/66269-stereo-integrity-sub-questions.html This build will take a while, I'll post more as I get stuff...
  13. Si ht18 d2

    DIY Subwoofers - General Discussion
    Finally received my speaker from Stereo integrity which was the SI HT 18 D2 and was wondering if there has been any successful uses with this speaker,Whether it be home Theater or use in a car,Sealed or ported.I cannot find one bit of information on this speaker and or it's uses.Any info on this...
  14. Twin sealed SI HT18's or THT / F20/ lilwrecker horn for first DIY subwoofer

    DIY Subwoofers - General Discussion
    SO ive been a long time reader of this and other home theater forums. ive decided to take the plunge and dive into the world of DIY HT subs. ive done plenty of car stuff in the past. my HT rooms a basement room about 30x15x8. power will be provided by an inuke3000dsp. ive decided i want to use...
  15. Stereo Integrity HT18 design help

    DIY Subwoofers - General Discussion
    I'm looking into build a Sealed Sub for my family room that opens up to nearly 3/4 of my 2900 sq. foot house. I mainly watch movies and listen to music when i can, so basically a 70/30 ratio of movies/music. My budget is $550 including materials and shipping costs. I have already priced out...
  16. Modeling SI HT18

    DIY Subwoofers - General Discussion
    EDIT: Cut from another thread. Mike P. Hi Graham, are we sure these files are correct? I am modeling them and they need huge boxes to achieve any tuning efficiency. Attached is my project file. Zach
  17. Use Stereo integrity HT18 D2 or D4

    Ported Subwoofer Build Projects
    I'm planning a sonosub build for my Hauptwerk virtual pipe organ, one 18" driver in 24" tube. I decided to wait a bit before purchasing the Stereo Integrity drivers until I see how others make out with them. I had hoped to purchase one or two of the HT 18 D2 drivers here soon, but now Nick of...
  18. SI 2+2 HT18 D4 Sealed Build

    Sealed Subwoofer Build Projects
    I may as well join the SI HT18 build party... as it seems we got about fifty-eleven build projects going on with them right now. I would expect no less at their bargain pricing. Nothing fancy here... just a pair of 18's in a sealed box (approx. 11ft³ per enclosure). Graham (gperkins_1973)...
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