ear2ear Posted August 10, 2012 Report Share Posted August 10, 2012 Hopefully others can learn from my mistake 2009 Extended Cab Sierra - back seat gone 4 - RF T1 12s (old version - 600 RMS) 1 - RF T2500-1bd (3240 birthsheet) Did some research - talked to the RF dealer in town. So I thought I was going to be Mr. SQL and do sealed / downfiring. By the suggestion of said RF dealer I built a false floor and fired the woofers into it. He said about 3” of space would be ok and called it an intimate barrier. To his credit it may have worked with the 3” gap around the whole box...you’ll see in the pics... I might as well post the whole box build. It was on the old RF forum. I use Inventor software. Quote '09 Sierra Ext Cab - under construction (1) RF T2500-1 -running- (4) RF T1 12's (1) RF T1000-4 -running- (2) RF T1652-S Stock alt / battery -plus- (1) DC Power 230a & (2) Kinetik 1800 Buncha OFC Knu Buncha Second Skin Kenwood DDX814 - Alpine Imprint - RF 360.3 Link to comment Share on other sites More sharing options...
ear2ear Posted August 10, 2012 Author Report Share Posted August 10, 2012 (edited) 1 of 2 baffles. Window bracing and center divider / battery cubby sides. Plunge cuts. All trimmed at the same time - same saw setting. Horizontal window brace / battery cubby bottom. Compound miter saw only goes 1 direction - bust out the jigsaw. Some weird cuts/bevels to make up the front corners of the box. Edited August 10, 2012 by ear2ear Quote '09 Sierra Ext Cab - under construction (1) RF T2500-1 -running- (4) RF T1 12's (1) RF T1000-4 -running- (2) RF T1652-S Stock alt / battery -plus- (1) DC Power 230a & (2) Kinetik 1800 Buncha OFC Knu Buncha Second Skin Kenwood DDX814 - Alpine Imprint - RF 360.3 Link to comment Share on other sites More sharing options...
ear2ear Posted August 10, 2012 Author Report Share Posted August 10, 2012 (edited) Everything cut. Dry fit. At this point I was thrilled it all fit together. Did some roundoverz on the windowzz. Drilling for T-nuts. BTW they suck in MDF. Gluing baffle 1 with braces/divider to baffle 2: Upper assembly. Upper & lower assemblies. All the guts together. Edited August 10, 2012 by ear2ear Quote '09 Sierra Ext Cab - under construction (1) RF T2500-1 -running- (4) RF T1 12's (1) RF T1000-4 -running- (2) RF T1652-S Stock alt / battery -plus- (1) DC Power 230a & (2) Kinetik 1800 Buncha OFC Knu Buncha Second Skin Kenwood DDX814 - Alpine Imprint - RF 360.3 Link to comment Share on other sites More sharing options...
ear2ear Posted August 10, 2012 Author Report Share Posted August 10, 2012 (edited) Sides and lower front. Upper sides and main front. I trimmed this board and should not have. Now filling the gap. Problem solved. All together except the back. Aluminum square tube wire chases through box. Battery cubby and wire chases. Clearance. Edited August 10, 2012 by ear2ear Quote '09 Sierra Ext Cab - under construction (1) RF T2500-1 -running- (4) RF T1 12's (1) RF T1000-4 -running- (2) RF T1652-S Stock alt / battery -plus- (1) DC Power 230a & (2) Kinetik 1800 Buncha OFC Knu Buncha Second Skin Kenwood DDX814 - Alpine Imprint - RF 360.3 Link to comment Share on other sites More sharing options...
ear2ear Posted August 10, 2012 Author Report Share Posted August 10, 2012 (edited) Back view - still open. Back installed. Cubby routed out. Bottom view. Note 3” lip all around except front. Fiberglass cloth along all seams / intersections. Test fit on raw false floor. See the “ports”? FAIL Under false floor. Top of false floor. The box bolts to the cleats on these 3 sides. T-nuts work a lot better in oak! Edited August 10, 2012 by ear2ear Quote '09 Sierra Ext Cab - under construction (1) RF T2500-1 -running- (4) RF T1 12's (1) RF T1000-4 -running- (2) RF T1652-S Stock alt / battery -plus- (1) DC Power 230a & (2) Kinetik 1800 Buncha OFC Knu Buncha Second Skin Kenwood DDX814 - Alpine Imprint - RF 360.3 Link to comment Share on other sites More sharing options...
ear2ear Posted August 10, 2012 Author Report Share Posted August 10, 2012 (edited) Planning wiring. Wooden battery terminals don’t conduct - lol Amps mounted. Planning wiring. False floor ready to bolt down. Bolted down. Made brackets to fit the stock seat mounting studs. Loading woofers. Installing box. Edited August 10, 2012 by ear2ear Quote '09 Sierra Ext Cab - under construction (1) RF T2500-1 -running- (4) RF T1 12's (1) RF T1000-4 -running- (2) RF T1652-S Stock alt / battery -plus- (1) DC Power 230a & (2) Kinetik 1800 Buncha OFC Knu Buncha Second Skin Kenwood DDX814 - Alpine Imprint - RF 360.3 Link to comment Share on other sites More sharing options...
ear2ear Posted August 10, 2012 Author Report Share Posted August 10, 2012 (edited) This is the last picture before we lifted it onto the false floor. 20 minutes later I was pissed and never took a “nice” picture with the blue LEDs and all that BS. The output absolutely sucked. I could have done an under-the-seat ported 10 and been happier. SQ was actually pretty good. Really tight and it played everything. But I doubt it did a 130. I dunno. No videos. No flex. All wired in phase. I checked with a battery even though I have pictures of them wired correctly. So anyway, looking back the design flaw is really obvious. Since the 3" opening was only on the front of the box it was acting like a quasi bandpass. Well, it was a bandpass. I am an engineer and this pisses me off, because a simple realization that my “port” area was less than my cone area would have saved me. Moral of the story: Downfiring into a barrier to load the woofers isn’t bad, but they must have room to breathe. The whole damn thing went in the dumpster. Edited August 10, 2012 by ear2ear Quote '09 Sierra Ext Cab - under construction (1) RF T2500-1 -running- (4) RF T1 12's (1) RF T1000-4 -running- (2) RF T1652-S Stock alt / battery -plus- (1) DC Power 230a & (2) Kinetik 1800 Buncha OFC Knu Buncha Second Skin Kenwood DDX814 - Alpine Imprint - RF 360.3 Link to comment Share on other sites More sharing options...
CleanSierra Posted August 10, 2012 Report Share Posted August 10, 2012 Jesus dude, that many reserved? 1 or two would have been plenty I would think. Quote Im not the one you want to try to troll. Just a fyi for you. Link to comment Share on other sites More sharing options...
Scynte Posted August 10, 2012 Report Share Posted August 10, 2012 We expect alot of pics! Quote Link to comment Share on other sites More sharing options...
Crandis16 Posted August 10, 2012 Report Share Posted August 10, 2012 it's kinda hard to tell what is going on in your drawing. what happened? Quote My Red zx2 Build Log My Black zx2 Build Log My Red zx2 UBL Link to comment Share on other sites More sharing options...
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