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Post by Stefvorcide on Apr 11, 2007 7:21:10 GMT -5
Soon, i'm gonna switch from EL34's to 6L6GC's in my JSX, and fix bias. Rythm tone will be crushier than ever and more arcticulate and tight. \m/
Oh, and Kevin told me to put some accoustic batting inside the cab, to cut the standing waves (mostly low-end) so i,ll try that too. Hehe
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Post by mattjem7vwh on Apr 13, 2007 2:12:21 GMT -5
I thought acoustic batting was whacking off to takamine photos.
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Post by Tungus on Apr 15, 2007 20:06:47 GMT -5
I thought acoustic batting was whacking off to takamine photos. Im sure you were being sarcastic/humorous.... but for the newbs, Ill explain. A small drill on acoustic resonance taming. Frequencies below 800 hz are troublesome. They tend to resonate, and drive ppl mad. The general rule is to add 1 pound of batting for every .8 cubic feet of enclosure volume. LxWxH/1728= cubic inches x12 gives you cubic feet. You have a 20% leway for exact measurment, but the closer the better. Make damn sure to glue the batting to the back wall of the enclosure. This is usually the area behind the driver (speaker). That is what aids in killing the standing waves (lower freq resonance that is soooooooo motherfucking annoying). Im gonna go out of proffesional confidance, and tell yall how to eliminate standing waves altogether. This is afterall the best guitar forum on the planet............. version 2.0. Free knowledge. The best thing to do in a cabinet..... Like a 4x12 cab, is to add fiberglass spikes to the back wall and sides. A nonconforming material that adds alot of weight. A bad thing, but makes a world of differance. Heres where the free info comes in. Eggcrate cases glued on top of 1/2 poly foam on the back wall of the cabinet is a realy cheap way to make an enechoic chamber out of your cab. The response should be close to flat and not cost alot. Youre welcome.
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Post by Ms Scary on Apr 16, 2007 19:14:21 GMT -5
LxWxH/1728= cubic inches x12 gives you cubic feet. Really Now??
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Post by Tungus on Apr 23, 2007 18:21:15 GMT -5
LxWxH/1728= cubic inches x12 gives you cubic feet. Really Now?? Dimentions in inches to get cubic feet.......and yes I was incorrect. LxWxH/1728 = cubic feet of any 6 sided enclosure. Dx3.1415 (Pi)xL/1728= cubic feet of a cylinder. (typicaly used for mids and some high end venue subs). .8 pounds for each cubic foot of batting is pretty much a standard starting point. You can add as much as you like, even filling the entire cab to get it as flat sounding as possible.
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Post by logansc on Jun 25, 2007 11:08:30 GMT -5
is there anything else you can do for a really cheap 4x12? Mine pops on the clean channel, and when you hit low notes on the clean it rumbles.
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