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General Car Audio
Anyone use this sound deadener?
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<blockquote data-quote="SkizeR" data-source="post: 8786198" data-attributes="member: 633600"><p>Hey guys, owner of ResoNix here (again). Take this for what it's worth, as I know some of you will argue it just for the sake of debating, but whatever, here is some info that I have for you. There is another way of testing these products. Manufacturers use ASTM E756-05, or SAE J1637_202202. These measure Composite Loss Factor by using a standardized size aluminum bar that is vibrated at 200hz. Keyword there is 200hz. One frequency is used to test all of these products, and on a little aluminum bar. It has no real-world application for us in the car audio side of things since we apply this to large, flat pieces of steel and are typically concerned with 60-110hz. I spoke to the engineer at the manufacturer that makes ResoNix for me. This engineer, who designs and tests these products for a living, is HIGHLY impressed with what Chris is doing, and actually follows his testing. He agrees that while it may not be a standardized test, it is more in-depth and applicable to our situation than any other testing they have seen. The only way Chris could improve this test is to use an actual car door, but that makes the test drastically more difficult and expensive to pull off and make repeatable. The fact that the panel he uses has a similar resonant frequency is very close (damn near identical) to having the real thing. Call me a liar, tell me you need more testing, tell me whatever. I don't really care. The data is right there for you, is repeatable, and verifiable from real-world use. You can't just sit here and demand someone provide "real world experience" while we are literally spoon-feeding you the most comprehensive set of data on these types of products ever seen. You want real-world experience? The only way to do that is to get it, not ask for it on a forum (seems kinda contradicting if you ask me). But if you want it, even though I'll be called biased, or whatever, my real-world experience is my history of owning and operating a high-end car audio shop that wasn't satisfied with ANYTHING on the market after SDS closed, so I decided to make my own to satisfy myself and my clients. ResoNix is the product of that desire of mine. The only reason it is available for sale is because the minimum orders are insane relative to what a shop would need.</p></blockquote><p></p>
[QUOTE="SkizeR, post: 8786198, member: 633600"] Hey guys, owner of ResoNix here (again). Take this for what it's worth, as I know some of you will argue it just for the sake of debating, but whatever, here is some info that I have for you. There is another way of testing these products. Manufacturers use ASTM E756-05, or SAE J1637_202202. These measure Composite Loss Factor by using a standardized size aluminum bar that is vibrated at 200hz. Keyword there is 200hz. One frequency is used to test all of these products, and on a little aluminum bar. It has no real-world application for us in the car audio side of things since we apply this to large, flat pieces of steel and are typically concerned with 60-110hz. I spoke to the engineer at the manufacturer that makes ResoNix for me. This engineer, who designs and tests these products for a living, is HIGHLY impressed with what Chris is doing, and actually follows his testing. He agrees that while it may not be a standardized test, it is more in-depth and applicable to our situation than any other testing they have seen. The only way Chris could improve this test is to use an actual car door, but that makes the test drastically more difficult and expensive to pull off and make repeatable. The fact that the panel he uses has a similar resonant frequency is very close (damn near identical) to having the real thing. Call me a liar, tell me you need more testing, tell me whatever. I don't really care. The data is right there for you, is repeatable, and verifiable from real-world use. You can't just sit here and demand someone provide "real world experience" while we are literally spoon-feeding you the most comprehensive set of data on these types of products ever seen. You want real-world experience? The only way to do that is to get it, not ask for it on a forum (seems kinda contradicting if you ask me). But if you want it, even though I'll be called biased, or whatever, my real-world experience is my history of owning and operating a high-end car audio shop that wasn't satisfied with ANYTHING on the market after SDS closed, so I decided to make my own to satisfy myself and my clients. ResoNix is the product of that desire of mine. The only reason it is available for sale is because the minimum orders are insane relative to what a shop would need. [/QUOTE]
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