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Everything posted by KU40
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haha. That would be the most worthless option ever. Universal is only important if you think you'll ever switch amps from a 2 ohm optimized to a 1 ohm optimized, or maybe add another sub and again want a different amp.
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You forgot Circuit City. It lost 55% today, down to 14 cents a share I think. hehe Didn't they file Chap. 11? Yeah, bankruptcy protection. They aren't actually bankrupt.......yet. They just got a 1.1 billion dollar loan for working capital while they are in the protection. Either way, nobody is going to be buying their stock. They also just received a warning from the NYSE about their stock being under $1 for over a month. But I don't know what they do? Just kick them out of the exchange I guess? In other news, DHL is getting out of the shipping business in the US. 9,500 jobs lost in that one.
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Be careful of you statements. Have you ever heard of cheater amps. That may be true but still, 1 ohm stable amps are a lot more common than they were back then. There were literally only a handful of them back then, and they were too expensive for most people. Now every company has 2-3.
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So did the server just blow up and Josh finally just said screw it and threw it all in the trash compactor?
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did you get upset at the posts in your other thread so you just made an all "brand new" one?
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Will this box design help me at all
KU40 replied to Killerzracing71's topic in Subwoofers / Speakers
It was just the way your last post was worded that made me think you didn't use glue. You were talking about the screws being stripped, but once the glue is set the screws don't really do much. The glue is what really holds the two pieces together. We know most people don't have a ton of money to throw at it, that's why we get critical. We don't want you to repeat mistakes that you don't know you are making. There really should not be panels coming loose on an enclosure. If we didn't pick at this one and find out what's wrong, we can't help you avoid mistakes the next time. You may think that you know all of the mistakes that you made with this box, but perhaps not. I'm sure it's happened to a lot of us. Perhaps some of us only used screws on our first box. Once we learned about glue, we made another box and used glue. But then oh we learned that bracing is a good idea. So we build a third box that has bracing. Then we find out that doubling up the front baffle helps a lot too. So our fourth box we double up the front. Then we learn about something else and make a fifth, sixth, seventh box, etc. We just try and get you to go from that first to that seventh box without all those wasted boxes in between. -
I'm 100% sure. It will do 118.2 db. Now, I didn't say it wouldn't do more than that. But honestly it's a very silly question. So you get silly answers. Nobody knows what it will measure. There isn't a database somewhere that relates every vehicle with every sub, amp, and enclosure combination that will tell you exactly what you will measure. And chances are probably 1 in 10,000,000 that there is even somebody with the same vehicle as you (which you didn't specify), with the same enclosure as you (which you didn't specify), with the same electrical system (which you didn't specify), and lastly, with the same sub and amp, that will be able to tell you.
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I'm so happy I don't have work, either. Plus today flew by. It was a good day. Now I'm excited about the anticipation of not having to wake up to my alarm, and laying in bed all morning!
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That was some poor surveying and site inspection prior to the build. although it has probably been, what, like 40 years since it was built? It depends what's causing the sinking that will determine if it can be stopped or not. I don't think you are getting liquifaction from earthquakes like the leaning tower of Piza there in Indiana. haha. I'm not sure of the bedrock geology up there, but if there is karst in some limestone somewhat close to the surface, that could cause it. That happened underneath I-70 here in kansas. A nearby saltwater injection well's casing was leaking, allowing water to leak out and dissolve the limestone. They pumped cement into the void a couple or three times to raise the road back up, but it kept sinking because they hadn't found the source of the problem and the limestone was just continually eroded away. But it also (most likely, I think) is just caused by saturated soil and a heavy building. It has been a wet year down here, not sure about up there. Can't do much about that.
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Hey, I resen....I resen....Boy I say I resemble that remark.
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"Perks that help a leader to be more efficient and more productive are hardly perks." -- Bob Lutz, Vice-Chairman, General Motors So........inefficiency and unproductiveness are good? I see that's worked out well for you.....
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You forgot Circuit City. It lost 55% today, down to 14 cents a share I think. hehe
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ha I noticed that too. Not picking on you
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forgot one thing about larger enclosures- increased efficiency.
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I think it will hit 118.2 db. That amp will be fine.
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Will this box design help me at all
KU40 replied to Killerzracing71's topic in Subwoofers / Speakers
So.......you didn't use glue? -
Alternator/ battery/ cap issue?
KU40 replied to BigDaddy13440's topic in Amplifiers / Head Units / Processors / Electrical
that's not the problem. Especially since he noted that the voltage fluctuates even without that amp on. You mention running 4 gauge to the fuse panel? What fuse panel? I assume the one for your vehicle, but why does your power wire run through there? And what are these switches you are talking about for the amps? What are they hooked up to? Is your alternator the same stock one from the factory 12 years ago? If so.......it may be on its way out. Stop by an auto parts store and ask them to do a check on it. -
"old blue?" Isn't your truck grey?
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Depending on enclosure. which, history points to bad things in this department. That box is what killed the Type R. If you have suspension parts coming apart, like you did, instead of voice coils cooking, it points to mechanical failure from overexcursion. You probably played a note that was too low and the sub unloaded in that box, which is fairly easy to do considering the high 40 hz tune. So next time be more aware of the limits that the box places on the sub. Turn on a subsonic filter and/or tune lower.
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what's wrong with what you have?
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Why don't you just build a sealed box? Save a lot of money and it'll still be very loud. Don't go broke over audio equipment, that's about the dumbest thing to do.
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no
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I guess I should have qualified my suggestion of 22" long port in that box by saying to not do it. It's not going to make it sound any better. That will give each sub only 2.5 cubic feet, and that's too small for those subs. The frequency response for that enclosure would be nearly identical to the one I graphed above. You need to either build a larger box that will give those subs sufficient airspace for a ported application, or build a smaller box and seal it for those four subs. Or just live with that peaky response that doesn't go low at all. The fact is that you just built the wrong box from the start.
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cabin gain isn't the issue. It's box properties. If you build a ported box and tune it to 30 hz, the sub will start to unload at around 25 hz. Anything below that will not be loud and may damage the sub. In which case you'd want to use a subsonic filter for below there, which cuts output even more. If you build the ported box in my example you'll likely only have a usable range from 25 hz and up. If you go sealed, however, it never unloads and will play louder below 25-30 hz than the ported box. But the ported box will be louder from 30 hz and up, especially in the 30-45 hz range. So you have to ask yourself just how important that sub-25 hz stuff is to you.
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Man I love lazy mornings when I don't have to hurry and do anything. Like go to work.