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Car Audio Equipment
Subwoofers
10 big bass secrets
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<blockquote data-quote="dragon.breath" data-source="post: 8103431" data-attributes="member: 582656"><p>6. BRAND SELECTION</p><p></p><p>Here's another Short and sweet chapter, but by no</p><p></p><p>means unimportant.</p><p></p><p>There are different types of car stereo manufacturers.</p><p></p><p>Some are groups of investors, less interested in</p><p></p><p>product engineering, and more interested in profit</p><p></p><p>margins. Some are Audiophiles, truly concerned with</p><p></p><p>the quality of their products, and there are companies</p><p></p><p>everywhere in between. How can you differentiate?</p><p></p><p>Secret:</p><p></p><p>It probably takes a lot of experience to spot an</p><p></p><p>investment outfit. Look for tech support with no clue.</p><p></p><p>Look for a lot of chrome.</p><p></p><p>Look for product that looks eerily similar to big name</p><p></p><p>products. Look for almost naked women in their ads.</p><p></p><p>When you buy from the big names, your going to get</p><p></p><p>better engineering and expertise. This translates to</p><p></p><p>better</p><p></p><p>sounding products that last. When you buy from a</p><p></p><p>group of investors, you get a flashy product that might</p><p></p><p>not perform well, but for a great price!</p><p></p><p>There is a small number of companies still making</p><p></p><p>their stuff by hand. Your gonna pay a premium for this</p><p></p><p>stuff but it should be worth it. Great tech support.</p><p></p><p>Great products and your helping the little guys. I try to</p><p></p><p>find USA made stuff but its just about impossible</p><p></p><p>today.</p><p></p><p>Buy from an authorized dealer!</p><p></p><p>You won't understand the value of a warranty until</p><p></p><p>you need it. Let me tell you, I just bought a $2000</p><p></p><p>dollar piano from the wrong seller. No warranty but a</p><p></p><p>good price. This piano arrived broken. Selller won't</p><p></p><p>help. I can't fix it. It will cost me more to have it</p><p></p><p>repaired than a new one would have. I've learned that</p><p></p><p>when you invest more than you can stand to give</p><p></p><p>away, get a warranty or some kinda protection. Spend</p><p></p><p>that 25% more, and in return, you will get good tech</p><p></p><p>support and protection against defects.</p><p></p><p><a href="http:////forums/usertag.php?do=list&amp;action=hash&amp;hash=5" target="_blank">#5</a> . WOOFER EFFICIENCY</p><p></p><p>The output of your system is not just determined by</p><p></p><p>that big 1000 watts logo on your subwoofers, or that</p><p></p><p>super big amp. Some subwoofers are actually built to</p><p></p><p>give you more bass in certain frequency ranges, and</p><p></p><p>some just waste a lot of it. Using this information can</p><p></p><p>help you build the best subwoofer system for your</p><p></p><p>tastes.</p><p></p><p>Secret:</p><p></p><p>Some subwoofers are merely heaters!!!</p><p></p><p>An awful trend has developed and the blood is on a lot</p><p></p><p>of hands. Stereo consumers love to see huge numbers</p><p></p><p>on amps and speakers. So the industry has obliged</p><p></p><p>with massive subwoofers designed to create and</p><p></p><p>dissipate heat, and amps with huge output or hugely</p><p></p><p>exaggerated output. There is no regulation of car</p><p></p><p>stereo specifications, only voluntary compliance, so a</p><p></p><p>manufacturer can claim anything. The reality is, a</p><p></p><p>subwoofer that might accept that huge 1000+ watts</p><p></p><p>from your amp, but instead of producing a fair amount</p><p></p><p>of sound pressure, it turns it into heat. It takes less</p><p></p><p>engineering prowess to build a subwoofer with more</p><p></p><p>copper in the voice coil and more venting, than it does</p><p></p><p>to build it with extended excursion and low distortion.</p><p></p><p>Early car subwoofers were derived from pro-sound</p><p></p><p>woofers. These have low moving mass and high</p><p></p><p>magnetic strength. This is the key to efficiency.</p><p></p><p>Unfortunately, if you find a set of club speakers and</p><p></p><p>put them in your car, expect the enclosure to be pretty</p><p></p><p>big. This is not the key to super low bass. The key here</p><p></p><p>is high magnetic strength, higher moving mass and</p><p></p><p>extended excursion. A woofer diaphragm with more</p><p></p><p>weight will have a lower resonant frequency and will</p><p></p><p>produce low frequencies better.</p><p></p><p>Now efficiency can be defined by what frequencies</p><p></p><p>you desire. A 6 inch mid-bass will not be efficient at</p><p></p><p>producing 40 hertz and a subwoofer will not be</p><p></p><p>efficient at 5 thousand hertz. So when you think about</p><p></p><p>efficiency, think about how much output you will get in</p><p></p><p>the range you desire. High moving mass = efficient at</p><p></p><p>low frequencies. Low moving mass = efficiency at high</p><p></p><p>frequencies.</p></blockquote><p></p>
[QUOTE="dragon.breath, post: 8103431, member: 582656"] 6. BRAND SELECTION Here's another Short and sweet chapter, but by no means unimportant. There are different types of car stereo manufacturers. Some are groups of investors, less interested in product engineering, and more interested in profit margins. Some are Audiophiles, truly concerned with the quality of their products, and there are companies everywhere in between. How can you differentiate? Secret: It probably takes a lot of experience to spot an investment outfit. Look for tech support with no clue. Look for a lot of chrome. Look for product that looks eerily similar to big name products. Look for almost naked women in their ads. When you buy from the big names, your going to get better engineering and expertise. This translates to better sounding products that last. When you buy from a group of investors, you get a flashy product that might not perform well, but for a great price! There is a small number of companies still making their stuff by hand. Your gonna pay a premium for this stuff but it should be worth it. Great tech support. Great products and your helping the little guys. I try to find USA made stuff but its just about impossible today. Buy from an authorized dealer! You won't understand the value of a warranty until you need it. Let me tell you, I just bought a $2000 dollar piano from the wrong seller. No warranty but a good price. This piano arrived broken. Selller won't help. I can't fix it. It will cost me more to have it repaired than a new one would have. I've learned that when you invest more than you can stand to give away, get a warranty or some kinda protection. Spend that 25% more, and in return, you will get good tech support and protection against defects. [URL="http:////forums/usertag.php?do=list&action=hash&hash=5"]#5[/URL] . WOOFER EFFICIENCY The output of your system is not just determined by that big 1000 watts logo on your subwoofers, or that super big amp. Some subwoofers are actually built to give you more bass in certain frequency ranges, and some just waste a lot of it. Using this information can help you build the best subwoofer system for your tastes. Secret: Some subwoofers are merely heaters!!! An awful trend has developed and the blood is on a lot of hands. Stereo consumers love to see huge numbers on amps and speakers. So the industry has obliged with massive subwoofers designed to create and dissipate heat, and amps with huge output or hugely exaggerated output. There is no regulation of car stereo specifications, only voluntary compliance, so a manufacturer can claim anything. The reality is, a subwoofer that might accept that huge 1000+ watts from your amp, but instead of producing a fair amount of sound pressure, it turns it into heat. It takes less engineering prowess to build a subwoofer with more copper in the voice coil and more venting, than it does to build it with extended excursion and low distortion. Early car subwoofers were derived from pro-sound woofers. These have low moving mass and high magnetic strength. This is the key to efficiency. Unfortunately, if you find a set of club speakers and put them in your car, expect the enclosure to be pretty big. This is not the key to super low bass. The key here is high magnetic strength, higher moving mass and extended excursion. A woofer diaphragm with more weight will have a lower resonant frequency and will produce low frequencies better. Now efficiency can be defined by what frequencies you desire. A 6 inch mid-bass will not be efficient at producing 40 hertz and a subwoofer will not be efficient at 5 thousand hertz. So when you think about efficiency, think about how much output you will get in the range you desire. High moving mass = efficient at low frequencies. Low moving mass = efficiency at high frequencies. [/QUOTE]
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