CECAA850 Posted February 20, 2015 Share Posted February 20, 2015 (edited) First off, thanks to Lil Mike at the AVSforum for another great design. Mike designed the Cinema F-20 and now it's big brother the Lil Wrecker. For comparative purposes, the F-20 is a 20 cubic foot refrigerator sized sub. The Lil Wrecker comes in at 29 cubic feet, is louder and goes lower. It's right at 6 foot tall (5' 10" plus feet) and I'm guessing well over 200 lbs using 3/4" birch. MDF would have definitely been weight prohibited. The box is tuned to 17 Hz so in room should be good to around 14 or lower. Another difference between this and the F-20 is that the F-20 is a front loaded horn and this one is tapped. The driver is a 15" Alpine that will be powered by a bridged Crown that should give it a clean 1200 watts. The build. I'm just about done and only have the Neutric connector left to install. It'll take me a while to post pics so I thought I'd start. I hope to fire it up this weekend. I appreciate forum member mxr dad for entrusting me with this build. It's always nice to build something different. I knew this was going to be big when the cut sheets called for 4 sheets of 4x8 plywood. EDIT, all pictures can be clicked to enlarge. Edited February 20, 2015 by CECAA850 5 Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 20, 2015 Author Share Posted February 20, 2015 My favorite saw made short work of ripping the panels up. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 20, 2015 Author Share Posted February 20, 2015 I don't know why I haven't done this on prior builds but I went ahead and ran a roundover bit on the driver side of the baffle. The result is no sharp edges for the driver surround to hit. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 20, 2015 Author Share Posted February 20, 2015 Time to add a random panel. 1 Quote Link to comment Share on other sites More sharing options...
rockhound Posted February 20, 2015 Share Posted February 20, 2015 This is a bad mo fo can't wait to see this build! Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 20, 2015 Author Share Posted February 20, 2015 Start of a flare. Yes, for those of you who have indulged me in reading past build threads, I've graduated to saw horses. No more tore up knees from working on the floor Quote Link to comment Share on other sites More sharing options...
mxr dad Posted February 20, 2015 Share Posted February 20, 2015 HAHA. Thats my baby. Carl, you are Da Man and thank you for such a great build. You put some serious TLC into this and I appreciate it. I wonder if the wife will notice this small box I'm putting in the living room???? Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 20, 2015 Author Share Posted February 20, 2015 HAHA. Thats my baby. Carl, you are Da Man and thank you for such a great build. You put some serious TLC into this and I appreciate it. I wonder if the wife will notice this small box I'm putting in the living room???? That should be fun! Quote Link to comment Share on other sites More sharing options...
mxr dad Posted February 20, 2015 Share Posted February 20, 2015 And love the name. Lil Wrecker. Could stand for your back while lifting it, or pictures wrecking off the walls, etc. I'm just thankful to have an understanding wife so it isnt a marriage wrecker. LOL. 2 Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 20, 2015 Author Share Posted February 20, 2015 It doesn't look like much yet but the inner flares are starting to take shape. To take pictures, I had to get a step ladder and hold the camera over my head LOL. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 20, 2015 Author Share Posted February 20, 2015 The next flare. One thing I had issues with on this build is a bit of warpage on the panels as they were so long. MDF doesn't warp. These panels were so long that I had to really work to straighten them out to keep things square. Most times I would just have to put the panel on and pull the warped section when I attached it to an adjacent panel. I like to keep the panel tolerances to 1/16" and this one really challenged me. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 20, 2015 Author Share Posted February 20, 2015 And love the name. Lil Wrecker. Could stand for your back while lifting it, or pictures wrecking off the walls, etc. I'm just thankful to have an understanding wife so it isnt a marriage wrecker. LOL. We joked as I nick named this thing the "Hernia". Once all the panels were on it just seemed fitting. 1 Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 20, 2015 Author Share Posted February 20, 2015 Next on was the driver baffle. The driver hang in the mouth of the sub so bracing was tricky but absolutely essential. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 20, 2015 Author Share Posted February 20, 2015 (edited) On this picture you can see the outside starting to form. t looks like I mis cut the sides as there's quite a bit of overhang. That actually was planned. It's much easier to cut the end panels long and then use a router with a flush bit to trim them. It's a lot easier to do that than try and get them perfect on the adjacent boards. It's a real time saver and saves a LOT of time that would normally be sent sanding after the box is together. Edited February 20, 2015 by CECAA850 1 Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 20, 2015 Author Share Posted February 20, 2015 You can see how this is going to work at this point. The driver was just temporarily installed for the picture. 2 Quote Link to comment Share on other sites More sharing options...
derrickdj1 Posted February 20, 2015 Share Posted February 20, 2015 (edited) Carl I looked at how fast the build was going at it only took a few minutes to read all the comment and look at the pic's. This reminds me of Home Time, the DIY home guys. They can build 1/2 a house in a half hour. I just thought you would enjoy a little humor with this build. Nice work! Edited February 20, 2015 by derrickdj1 2 Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 20, 2015 Author Share Posted February 20, 2015 Extra bottom bracing as normal bracing wouldn't work due to the driver being in the way. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 20, 2015 Author Share Posted February 20, 2015 From the side. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 20, 2015 Author Share Posted February 20, 2015 Last picture for tonight. My son took this one with me in it for reference. I'm 6' tall. 2 Quote Link to comment Share on other sites More sharing options...
TasDom Posted February 20, 2015 Share Posted February 20, 2015 Sweet! Very cool Carl. If the wife does kill him at least she has somewhere to hide the body! 3 Quote Link to comment Share on other sites More sharing options...
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