Free Shipping on All Orders 1-866-764-1801

Vist our Online Store
+ Reply to Thread
Page 1 of 2 1 2 LastLast
Results 1 to 30 of 48

Thread: My LFE Project

  1. #1

    Member Sales Rating: (0)

    Join Date
    May 2010
    Location
    Addison
    Posts
    1,132

    Default My LFE Project

    I'm going to document my LFE project in this thread. I got my inspiration from the combination of three different builds. One gave me the basic idea of building it into something other than a generic box, the second gave me the idea of black gloss and wood framing, and the last gave me the idea of using TC Sounds' LMS Ultra 5400 and the matching VMP 18" PRs, along with the usage of the I-Tech amplifier.

    Graham, a member at hometheatershack.com, is helping me with the design. He came up with all of these drawings yesterday just with the info I've fed him through PMs sent back and forth. It'd be scary to see what we could come up with, and how quickly we could come up with it, if we were working side by side.

    I digress, here's the first few shots, starting from the most basic to a nearly complete look, and some shots of the bracing that will be implemented. Needless to say, It's going to be built more solid than any enclosure I've seen to this day.

    For the record, the enclosure will be be built using 1" MDF. The front will be double faced, maybe even triple.
    ____________________________________

    First renditions:



    Initial bracing system added:



    I was a little concerned though, because I want this enclosure rock solid vs. a front firing driver and two PRs, so the bracing was upgraded:


    Almost-final rendition:


    Minor added details not in the mockup:
    The sides and back will be the piano-black gloss just like the front. Small neodymium magnets will be integrated just under the paint and matching magnets will be fixed to a grill so that it can be added or removed without any mounting hardware visible. I hadn't decided where to put the binding posts, but I was thinking the bottom of the enclosure would be a good idea.

    I'm sure you'll notice the horizontal panels installed to reduce the volume of the enclosure within the overall unit. In his initial setups, you'll also noticed he braced that space between the interior baffles and the outer panel with small pieces of wood. Without these, the enclosure's volume will be way too large. I was a little worried about the integrity of this, so I tried to figure some ways around it. My initial thought was to just fill it with MDF sheet...

    Here's the picture I sent to Graham to indicate exactly what I was talking about:

    ...however, in my current mockup's state, the unit is a little taller than I would like, so tomorrow Graham and I are going to work to shorten it some.
    - Computer Rig -
    YAΘIN MS-20L, polkaudio RT5

    - Main Rig -
    Pioneer SC-37, DIY Statements, Samsung 52" LCD

  2. #2

    Member Sales Rating: (45)

    Join Date
    Aug 2008
    Location
    NC Foothills
    Posts
    4,637

    Default

    Wow that is very nice! Great job.

  3. #3

    Member Sales Rating: (0)

    Join Date
    May 2010
    Location
    Galveston
    Posts
    3,215

    Default

    Very cool
    Also consider extra footing brace feet for the underside, the feet dont need to be visible.

    What do you plan to sit on top?
    Home Theater:Samsung8000-55LED,Pioneer SC35, Pioneer DV-79AVi, Sunfire TGA7201, LSi25, LCi RTSc, LC80i
    2chnl system:Melody 101 tube pre, Pass XA30.5 amp, Usher MD2 speakers, W4S Dac, MG Audio Planus2 speaker cables
    Office rig: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures

  4. #4

    Member Sales Rating: (0)

    Join Date
    May 2010
    Location
    Addison
    Posts
    1,132

    Default

    Quote Originally Posted by txcoastal1 View Post
    Very cool
    Also consider extra footing brace feet for the underside, the feet dont need to be visible.

    What do you plan to sit on top?
    Well, truth be told, I'd like Eva Mendez in the clich? calendar girl pose, but since she's not available, I dunno. MAYBE some gear if it won't vibrate much. I'm kinda doubting that though.
    - Computer Rig -
    YAΘIN MS-20L, polkaudio RT5

    - Main Rig -
    Pioneer SC-37, DIY Statements, Samsung 52" LCD

  5. #5

    Member Sales Rating: (2)

    Join Date
    Oct 2008
    Location
    two eleven fifty-seven
    Posts
    3,383

    Default

    Oh, it'll definitely be heavy, but I think you're going to have bolt it to the floor. Can't wait to see how this project comes along. Good luck!
    7.1 - polk RTi10 x 3 (LCR) : FXi3 x 2 : RTi4 x 4 : MFW-15 (RIP): Yamaha Aventage RX-A1000 : Adcom GFA-7500 : PS3 : Squeezebox Touch : DIRECTV : Panasonic PT-AX200U PJ @120"
    5.1 - Definitive Technology ProMonitor 800 x 4 : ProCenter 1000 : Klipsch Sub-10 : Onkyo TX-SR575 : DIRECTV HR22 DVR : LG 50PQ30 HDTV
    Garage Duty - polk Monitor 10s : Pioneer A-717 Integrated Amp : Squeezebox Classic

  6. #6

    Member Sales Rating: (0)

    Join Date
    May 2010
    Location
    Addison
    Posts
    1,132

    Default

    Instead of bolting, I plan on using multiple spikes on each leg, and I will be adding some legs on the underside of the enclosure, txcostal1. Got lots of weight to support and I'm not putting that all on the outside feet. This thing is gonna be so damn heavy it'll definitely press the carpet flat, so I know I won't need long spikes to touch the floor below. I'm gonna move some of my other furniture that's mashed the carpet down and see now deep I've gotta go to get to the floor below.

    If you any of you guys want to contact Graham about doing mockups for you, visit www.hometheatershack.com, and PM gperkins_1973.
    - Computer Rig -
    YAΘIN MS-20L, polkaudio RT5

    - Main Rig -
    Pioneer SC-37, DIY Statements, Samsung 52" LCD

  7. #7

    Member Sales Rating: (1)

    Join Date
    Jan 2010
    Location
    Soggy swampland, OH
    Posts
    759

    Default

    With a properly built enclosure you don't have to worry too much about vibrations. I built an end table sub for a friend of mine, and with proper bracing and the double thickness of the top, he has virtually no vibrations on the top. He keeps a lamp and some pictures on top with no rattles Good luck with the build, looking forward to seeing the finished product!
    I love animals, they're delicious!

  8. #8

    Member Sales Rating: (0)

    Join Date
    May 2010
    Location
    Addison
    Posts
    1,132

    Default

    Quote Originally Posted by greyford1979 View Post
    With a properly built enclosure you don't have to worry too much about vibrations. I built an end table sub for a friend of mine, and with proper bracing and the double thickness of the top, he has virtually no vibrations on the top. He keeps a lamp and some pictures on top with no rattles Good luck with the build, looking forward to seeing the finished product!
    I read that whole thread and loved it! It's one of the three projects out there that give me the ideas for mine, so I do owe you a great deal of thanks.

    However, the major differences between our builds are that your build had 1 front firing 12" driver and a 300w amplifier, and mine will have three front firing "drivers" (I'm using that loosely since two of them are PRs) backed by somewhere in the ballpark of 2000 watts. Around 8x the power and I have no idea how much more surface area. Plus, the drivers are firing along the shortest plane of the structure, which makes for a little less stability.

    I think it'll be okay, but I'm taking every single precaution I can to make it as solid as possible. I don't wanna have to redesign this thing and rebuild it.
    - Computer Rig -
    YAΘIN MS-20L, polkaudio RT5

    - Main Rig -
    Pioneer SC-37, DIY Statements, Samsung 52" LCD

  9. #9

    Member Sales Rating: (1)

    Join Date
    Jan 2010
    Location
    Soggy swampland, OH
    Posts
    759

    Default

    From the design it looks like it should be solid, and obviously the 1" thickness should help too. The one I built for myself, not an end table, I am now finally running 1000 watts to the 15 with very little vibration as well...so hopefully it goes well for you on the first shot lol.
    I love animals, they're delicious!

  10. #10

    Member Sales Rating: (0)

    Join Date
    May 2010
    Location
    Addison
    Posts
    1,132

    Default

    If you've got a second, email me some pics of your 15. JimAckley@ymail.com
    - Computer Rig -
    YAΘIN MS-20L, polkaudio RT5

    - Main Rig -
    Pioneer SC-37, DIY Statements, Samsung 52" LCD

  11. #11

    Member Sales Rating: (0)

    Join Date
    May 2010
    Location
    Galveston
    Posts
    3,215

    Default

    Quote Originally Posted by JimAckley View Post
    Well, truth be told, I'd like Eva Mendez in the clich? calendar girl pose, but since she's not available, I dunno. MAYBE some gear if it won't vibrate much. I'm kinda doubting that though.
    Good vibrations
    Home Theater:Samsung8000-55LED,Pioneer SC35, Pioneer DV-79AVi, Sunfire TGA7201, LSi25, LCi RTSc, LC80i
    2chnl system:Melody 101 tube pre, Pass XA30.5 amp, Usher MD2 speakers, W4S Dac, MG Audio Planus2 speaker cables
    Office rig: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures

  12. #12

    Member Sales Rating: (1)

    Join Date
    Jan 2010
    Location
    Soggy swampland, OH
    Posts
    759

    Default

    Quote Originally Posted by JimAckley View Post
    If you've got a second, email me some pics of your 15. JimAckley@ymail.com
    I tried to send you some photos but I couldn't upload them to my email for some reason But here is the build thread I did on here. After I had finished it I actually added a couple more braces just because I was worried about the same thing knowing I was gonna replace the 300 watt with the 1000 watt amp. It definitely rumbles your insides. All my friends say that they thought they had HT subs till they heard that thing lol. Love to demo Iron Man 2 when he jumps out of the plane for them And yes I messed up on the measurments for the middle brace where the port runs through but you can't see it and doesn't effect the sound so oh well lol. But any ways this is the thread for the build, the finish was a pain in the a$$ but worth it.

    http://www.polkaudio.com/forums/showthread.php?t=108333
    Last edited by greyford1979; 02-22-2011 at 10:15 PM.
    I love animals, they're delicious!

  13. #13

    Member Sales Rating: (1)

    Join Date
    Oct 2008
    Location
    Richton Park,IL.
    Posts
    5,072

    Default

    Sweet!
    Linn AV5140 fronts
    Linn AV5120 Center
    Linn AV5140 Rears
    M&K MX-70 Sub for Music
    Odyssey Mono-Blocs
    SVS Ultra-13 Gloss Black:D

  14. #14

    Member Sales Rating: (0)

    Join Date
    May 2010
    Location
    Addison
    Posts
    1,132

    Default

    Quote Originally Posted by greyford1979 View Post
    I tried to send you some photos but I couldn't upload them to my email for some reason But here is the build thread I did on here. After I had finished it I actually added a couple more braces just because I was worried about the same thing knowing I was gonna replace the 300 watt with the 1000 watt amp. It definitely rumbles your insides. All my friends say that they thought they had HT subs till they heard that thing lol. Love to demo Iron Man 2 when he jumps out of the plane for them And yes I messed up on the measurments for the middle brace where the port runs through but you can't see it and doesn't effect the sound so oh well lol. But any ways this is the thread for the build, the finish was a pain in the a$$ but worth it.

    http://www.polkaudio.com/forums/showthread.php?t=108333
    I like that one you built for yourself! It looks really nice. How hard was it to paint it yourself? I've never really gotten into the whole painting process, as I had a friend who's always taken care of that. I used to build custom enclosures for my friends' cars, but typically carpeted them to match the car, or let my buddy paint them.
    - Computer Rig -
    YAΘIN MS-20L, polkaudio RT5

    - Main Rig -
    Pioneer SC-37, DIY Statements, Samsung 52" LCD

  15. #15

    Member Sales Rating: (1)

    Join Date
    Jan 2010
    Location
    Soggy swampland, OH
    Posts
    759

    Default

    Really wasn't that hard to paint it. Just have to make sure the prep work is done properly, filler, sanding, sealing, primer, sanding in between coats, etc..The hardest part was obviously getting the piano gloss finish. Lot of wet sanding, rubbing compound, and polishing lol.
    I love animals, they're delicious!

  16. #16

    Member Sales Rating: (0)

    Join Date
    May 2010
    Location
    Addison
    Posts
    1,132

    Default

    Sounds like it's time for me to buy some MDF and practice
    - Computer Rig -
    YAΘIN MS-20L, polkaudio RT5

    - Main Rig -
    Pioneer SC-37, DIY Statements, Samsung 52" LCD

  17. #17

    Member Sales Rating: (0)

    Join Date
    May 2010
    Location
    Addison
    Posts
    1,132

    Default

    Just a little update.

    Today I went to the house of hometheatershack.com forum member "Island1000". He owns the LMS 5400 and a Crown XTi-4000. It sounded absolutely phenomenal. To this day, I have yet to hear a sub that can compare. I thought my JBL W15GTis could hang, but this thing had em topped in every way without breaking a sweat. The only differences between his system and mine are that he was using a sealed enclosure (whereas I'll be using two passive radiators), and he was using a single channel of the XTi-4000 (I'll be bridging my I-Tech 4000 for full wattage). I am so excited for this project, and I'm so close to starting it!
    - Computer Rig -
    YAΘIN MS-20L, polkaudio RT5

    - Main Rig -
    Pioneer SC-37, DIY Statements, Samsung 52" LCD

  18. #18

    Member Sales Rating: (0)

    Join Date
    May 2010
    Location
    Addison
    Posts
    1,132

    Default

    Just another update...

    Here's the final model of the enclosure. The only adjustments made really were to the height. If you notice in the mockups from earlier, there was space above/below the enclosure. Those have been deleted, and the height has been reduced 4". It's now 68" wide, 25" deep, and 30" tall, which is just the right height for a table IMO. The internal volume is slightly larger than what I wanted, at around 11.5 ft?, but I'll probably add an extra layer of wood all around on the inside to bring it down slightly, but that will be beneficial because I'm gonna need this baby to be heavy. I need to build it extra heavy, extra solid, and use spikes since I'll be doing front-firing passives (it's recommended to do side firing passives so cancel out movement/vibrations). I also need at least one more layer on the front (it's already double faced 1" MDF) so I can recess the woofers enough so they can hit their excursion limitations without popping the grill off. Since this is going into a bedroom, I highly doubt I'll get it to volumes where that's a legitimate issue. If you're wondering why I'd be putting a monster like this in a bedroom, it's because that's my given space for now. I plan on having it in a larger living room or a dedicated home theater at some point to use it in. But I say why wait for great bass just because I have a bedroom

    - Computer Rig -
    YAΘIN MS-20L, polkaudio RT5

    - Main Rig -
    Pioneer SC-37, DIY Statements, Samsung 52" LCD

  19. #19

    Member Sales Rating: (1)

    Join Date
    Aug 2009
    Location
    central Illinois
    Posts
    3,595

    Thumbs up

    Besides a wash machine would look out of place in the bedroom:tongue:

  20. #20

    Member Sales Rating: (0)

    Join Date
    May 2010
    Location
    Addison
    Posts
    1,132

    Default

    Lol you think so?

    Either tomorrow or Thursday, I'm going to get in touch with my buddy about doing the actual build. I'll probably start it in May. I gotta save up some $ for the driver, PRs, and the amplifier. I've still gotta figure out terminals... I guess I'll just cross that bridge when the time comes.
    - Computer Rig -
    YAΘIN MS-20L, polkaudio RT5

    - Main Rig -
    Pioneer SC-37, DIY Statements, Samsung 52" LCD

  21. #21

    Member Sales Rating: (0)

    Join Date
    May 2010
    Location
    Addison
    Posts
    1,132

    Default

    I've got a carpenter lined up for the build, and just received the piece-by-piece cutting instructions from the guy who did the modeling, so we are pretty close to getting this project rolling!
    - Computer Rig -
    YAΘIN MS-20L, polkaudio RT5

    - Main Rig -
    Pioneer SC-37, DIY Statements, Samsung 52" LCD

  22. #22

    Member Sales Rating: (0)

    Join Date
    Dec 2010
    Location
    Just north of the red river
    Posts
    540

    Default

    Very nice jim,,
    Not an Audiophile, just a dude who loves music, and decent gear to hear it with.

  23. #23

    Member Sales Rating: (0)

    Join Date
    May 2010
    Location
    Addison
    Posts
    1,132

    Default

    Just an update, my design will ever-so-slightly change because I can't seem to track down 1" MDF anywhere, so I'll be switching to the typical .75" MDF. As a result, I'll triple-face every side, plus an additional face on the front for that beautiful flush look. Can't wait to get this one going!
    - Computer Rig -
    YAΘIN MS-20L, polkaudio RT5

    - Main Rig -
    Pioneer SC-37, DIY Statements, Samsung 52" LCD

  24. #24

    Member Sales Rating: (27)

    Join Date
    Mar 2003
    Location
    NC
    Posts
    20,970

    Default

    Lowes etc can special order all day.
    www.Vr3Mods.com ///// www.Version3Audio.com

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro

  25. #25

    Member Sales Rating: (0)

    Join Date
    May 2010
    Location
    Addison
    Posts
    1,132

    Default

    Quote Originally Posted by Vr3MxStyler2k3 View Post
    Lowes etc can special order all day.
    Yeah I've debated that. When I was looking for material they told me they could. The guy I talked to was saying it's probably gonna be less to recalculate for .75", but we'll see.
    - Computer Rig -
    YAΘIN MS-20L, polkaudio RT5

    - Main Rig -
    Pioneer SC-37, DIY Statements, Samsung 52" LCD

  26. #26

    Member Sales Rating: (0)

    Join Date
    May 2010
    Location
    Addison
    Posts
    1,132

    Default

    My monthly update: the project is on hold until I get my pickup set up how I want it.
    - Computer Rig -
    YAΘIN MS-20L, polkaudio RT5

    - Main Rig -
    Pioneer SC-37, DIY Statements, Samsung 52" LCD

  27. #27

    Member Sales Rating: (0)

    Join Date
    May 2010
    Location
    Addison
    Posts
    1,132

    Default

    Finally making some headway on this project. Some tools have been bought, some practicing has been done with wood scraps, and I have one of the two required PRs for my build. Other than that, things are still pretty slow. I think I'm going to take on DIY statements before I do the sub. That way, I'll at least have a killer front stage.
    - Computer Rig -
    YAΘIN MS-20L, polkaudio RT5

    - Main Rig -
    Pioneer SC-37, DIY Statements, Samsung 52" LCD

  28. #28

    Member Sales Rating: (6)

    Join Date
    Oct 2009
    Location
    Niles, MI
    Posts
    841

    Default

    I am working on finishing my TC Sounds subs with dual passives. The pile of stuff is sitting in my basement. I will be following this project with interest. Looks REALLY nice. I have a couple custom "Pro 5100" like TC Sounds drivers but they have ferrite magnets instead of neo... I can't wait to get these thing making some noise!!! Good luck with your project! Let me know if you have any questions.

    Don
    Last edited by dcmartinpc; 08-20-2011 at 09:34 AM.
    Living Room: Adcom GFP-750 (Upgraded), Squeezebox Touch, Oppo BDP-83, Pioneer DV-79AVi, Parasound HCA-3500 (Upgraded), SDA SRS 2 P/B (Gimpod, Sonicaps, & Mills)

    Theater: Denon 4311ci, Oppo BDP-93, Parasound HCA-2205+HCA-2200II, Polk LSi9, LSiC, LSiFX, LSi7, Custom 18" TC Sounds sub with 2 18" PR, Sharp XV-Z12000, Pioneer Kuro KRP-500M (isf Enabled)

    Bedroom: HK AVR354, Pioneer DV-47a, Parasound HCA-1500a, Polk LSi9

  29. #29

    Member Sales Rating: (6)

    Join Date
    Oct 2009
    Location
    Niles, MI
    Posts
    841

    Default

    One thing I noticed is that you were planning on using an I-Tech amp. Do you already have it? If not, I would STRONGLY suggest you look at the CE4000 and an external processor. It will save you a TON of money and the CE 4000 was the test bed for the Class I amplification. Basically the same amp without all the DSP. And they can be had for about $300-$400, sometimes even cheaper if you are patient.

    Don
    Living Room: Adcom GFP-750 (Upgraded), Squeezebox Touch, Oppo BDP-83, Pioneer DV-79AVi, Parasound HCA-3500 (Upgraded), SDA SRS 2 P/B (Gimpod, Sonicaps, & Mills)

    Theater: Denon 4311ci, Oppo BDP-93, Parasound HCA-2205+HCA-2200II, Polk LSi9, LSiC, LSiFX, LSi7, Custom 18" TC Sounds sub with 2 18" PR, Sharp XV-Z12000, Pioneer Kuro KRP-500M (isf Enabled)

    Bedroom: HK AVR354, Pioneer DV-47a, Parasound HCA-1500a, Polk LSi9

  30. #30

    Member Sales Rating: (0)

    Join Date
    Jul 2009
    Location
    Cape Canaveral, Fl.
    Posts
    70

    Default

    That looks to be amazing once finished. Good luck with the build..

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

     

Similar Threads

  1. JBL fun project
    By Zero in forum Electronics
    Replies: 31
    Last Post: 03-28-2013, 10:23 AM
  2. SOLD FYI Sub Project HSU-VTF-2
    By criverajr in forum For Sale (FS) Classifieds
    Replies: 9
    Last Post: 12-02-2008, 01:27 PM
  3. My next project..
    By Ricardo in forum Electronics
    Replies: 5
    Last Post: 02-06-2007, 11:15 PM
  4. Need help with a sub project:
    By EricH in forum DIY, Mods & Tweaks
    Replies: 6
    Last Post: 12-08-2005, 10:06 AM
  5. my next project
    By goingganzo in forum The Clubhouse
    Replies: 8
    Last Post: 02-14-2005, 05:36 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts