CECAA850 Posted February 11, 2012 Author Share Posted February 11, 2012 Time to make the wires, Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 11, 2012 Author Share Posted February 11, 2012 Pants. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 11, 2012 Author Share Posted February 11, 2012 The finished door. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 11, 2012 Author Share Posted February 11, 2012 Should be making noise soon. All I need to do is sand the top. Quote Link to comment Share on other sites More sharing options...
Thaddeus Smith Posted February 11, 2012 Share Posted February 11, 2012 mi amore.. Quote Link to comment Share on other sites More sharing options...
Pete H Posted February 11, 2012 Share Posted February 11, 2012 Should be making noise soon. All I need to do is sand the top.Plug that big SOB in already, you can sand it later.[] Quote Link to comment Share on other sites More sharing options...
Pete H Posted February 11, 2012 Share Posted February 11, 2012 Time to make the wires,Your connections look great, but this is one area that always winds my chain when I'm making up wires like this; you would think that there would be better quality crimp connectors out there, but I've never been able to find them. Quote Link to comment Share on other sites More sharing options...
psg Posted February 11, 2012 Share Posted February 11, 2012 Yeah, I use solder since I hope never to open it up again and wouldn't want to have to because of a loose connector. Quote Link to comment Share on other sites More sharing options...
tragusa3 Posted February 11, 2012 Share Posted February 11, 2012 I'm with Pete! Get that sucker plugged up already! Quote Link to comment Share on other sites More sharing options...
psg Posted February 11, 2012 Share Posted February 11, 2012 Yeah, we have waited long enough! [] Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 11, 2012 Author Share Posted February 11, 2012 OK, OK, time for a listen. The first thing I did is play with some sine waves. There's tons of output at 20 Hz. It'll wave the hair on your arm if you put it in the mouth of the horn, pretty cool. Next I wanted to listen to some music. I alternated between the F-20 and my bass bins. For comparison purposes, I was pitting a 15" driver being pushed by a 240 watt plate amp against two 18" drivers being fed 750 watts apiece. To level the playing field, I level matched the two systems with an SPL meter before listening. I was really impressed at the efficiency of the horn, especially considering the fact that I was giving it less than optimal wattage. There's no question that the horn played cleaner with less overhang than the ported subs. The horn would also play lower due to the tune of the horn (20 Hz) vs the tune of the big ported boxes (I think it was around 30 Hz). The direct radiators were a little punchier but that's to be expected. Overall, the F-20 held it's own which was impressive considering how much I handicapped it. Two 18's vs one 15, 1500 watts vs 240 watts. It's definitely an amazingly efficient design. A few final build notes, I could detect no discernable leaks, for which I'm grateful. The anal retentive side of me went ahead and bondo'd the top left corner as I could feel a little bit of a seam there, couldn't stand it. You won't see or feel it after it's painted I ended up going over the whole box with some 180 grit after all was said and done. It's got a real smooth, almost glassy feel to it now. I appreciate Michael entrusting me with building this for him, I had a blast. Carl Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 11, 2012 Author Share Posted February 11, 2012 Time to make the wires,Your connections look great, but this is one area that always winds my chain when I'm making up wires like this; you would think that there would be better quality crimp connectors out there, but I've never been able to find them. The problem isn't the connector, it's the tool. You need one of these. The jaws are 3/8" thick. You literally would have to rip the wires to get the connector apart. If you need to replace the connector for any reason, you have to cut it off. Quote Link to comment Share on other sites More sharing options...
tromprof Posted February 11, 2012 Share Posted February 11, 2012 Thanks for posting this build, I am truly inspired. I was thinking of building another tuba to go with my K-horns, but I am going to build this instead! Thanks again. [8-|] Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 11, 2012 Author Share Posted February 11, 2012 You're welcome. I can't recall ever inspiring anyone before[:$]. Quote Link to comment Share on other sites More sharing options...
Thaddeus Smith Posted February 11, 2012 Share Posted February 11, 2012 I appreciate Michael entrusting me with building this for him, I had a blast. Carl ha, it's been just as much fun talking this project up on facebook and watching the jealous husbands fawn over the idea of a 5ft sub, while their wives scoff with sour faces. i'll be coming home saturday night, calibrating and tweaking sunday morning, and premiering Tron: Legacy for some new friends on sunday evening. In a few weeks I'll be painting the sub itself. Since it's inside, i think i'm going with a bedliner product from rustoleum - not a favorite for actual outside truck solutions, but it has a very even and fine texture to it that will integrate well into a house without screaming "industrial". Final results, as well as pictures of it integrated into the final home will of course be posted. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted February 11, 2012 Author Share Posted February 11, 2012 Of course! Quote Link to comment Share on other sites More sharing options...
Thaddeus Smith Posted February 11, 2012 Share Posted February 11, 2012 it's also cool to see the reaction when I tell people that I've only met Carl once before, and that he lives 6 hours away. The concept that he'd do this for me and that I'd trust him enough with my investment boggles their minds. or that Don would invite me over for a couple hours to enjoy his system as I play sherpa with speakers that he picked up for Carl. a testament, in my opinion, to the type of community atmosphere klipsch and this forum try to foster. 1 Quote Link to comment Share on other sites More sharing options...
Quiet_Hollow Posted February 11, 2012 Share Posted February 11, 2012 ....and premiering Tron: Legacy for some new friends on sunday evening. Bring a change of underwear for everyone... [6] Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted February 11, 2012 Share Posted February 11, 2012 Where can you get plans for this? I purchased the Tuba plans. (i havent got around to that yet). i like this build. I've seen a few builds like this. I followed PSG's Tuba build, and he had fantastic results. It needs a large footprint for this. Maybe a coffee table tuba is in order? I was also reading a Tapped sub build, which was really high, but has a small footprint. This seems to be in between. trade off on height, and footprint. Awesome build. Nice job. cant wait to see the "finished" product. [Y] Quote Link to comment Share on other sites More sharing options...
Thaddeus Smith Posted February 11, 2012 Share Posted February 11, 2012 Where can you get plans for this? bottom of the first post in this thread. http://www.avsforum.com/avs-vb/showthread.php?t=1329971 Quote Link to comment Share on other sites More sharing options...
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