Menu
Forum
General Car Audio
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Build Logs
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Home Audio
Off-topic Discussion
The Lounge
What's new
Search forums
Gallery
New media
New comments
Search media
Members
Registered members
Current visitors
Classifieds Member Feedback
SHOP
Shop Head Units
Shop Amplifiers
Shop Speakers
Shop Subwoofers
Shop eBay Car Audio
Log in / Register
Forum
Search
Search titles and first posts only
Search titles only
Search titles and first posts only
Search titles only
Log in / Join
What’s new
Search
Search titles and first posts only
Search titles only
Search titles and first posts only
Search titles only
General Car Audio
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Build Logs
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Home Audio
Off-topic Discussion
The Lounge
What's new
Search forums
Menu
Reply to thread
Forum
Car Audio Discussion
Subwoofers
10 big bass secrets
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="dragon.breath" data-source="post: 8103429" data-attributes="member: 582656"><p>this free e-book has been floating around the net for some time now. i thought it might help some of the noobs.</p><p></p><p>10 Big Bass Secrets</p><p></p><p>I have been asked probably just about every bass</p><p></p><p>question in the book. I'm guessing you have questions</p><p></p><p>too. Here I try to answer them.</p><p></p><p>The crazy thing about bass, is that sometimes you hit,</p><p></p><p>and sometimes you miss. I have seen many car stereo's</p><p></p><p>that were put together with barely any knowledge, hit</p><p></p><p>real hard. I've also seen a lot of money spent with poor</p><p></p><p>results.</p><p></p><p>This book will help you hit, every time.</p><p></p><p>I write this book today because I want you to enjoy</p><p></p><p>your stereo system without headaches. I want yours to</p><p></p><p>be as good or better than the guy winning that</p><p></p><p>competition. I want you to be able to help your friends</p><p></p><p>with their systems and I want you to go into the car</p><p></p><p>stereo store armed with knowledge.</p><p></p><p>It has been almost 25 years since I was bit by the</p><p></p><p>stereo bug and I have learned a lot since I was a kid.</p><p></p><p>Here is some very important stuff that could take some</p><p></p><p>time to discover.</p><p></p><p>I've done it all, set cars on fire, blown amps, woofers,</p><p></p><p>you name it. I've torn my moms car apart and put it</p><p></p><p>back together rigged with speakers. I've won</p><p></p><p>competitions, judged competitions, SQ and SPL alike.</p><p></p><p>Having the biggest bass is more complex than buying</p><p></p><p>the heaviest or largest subwoofer, more complex than</p><p></p><p>buying the longest amp, or the one that says 5000</p><p></p><p>watts across it. It's more complicated than any one or</p><p></p><p>two of these things.</p><p></p><p>Now that you possess these 10 secrets, your chances of</p><p></p><p>a loud, efficient, reliable and clean subwoofer system</p><p></p><p>are greatly improved.</p><p></p><p>Each of the ten chapters is designed to give you the</p><p></p><p>competitive edge. These industry secrets are the tricks</p><p></p><p>used by the pro's and utilized by manufactures to</p><p></p><p>produce the loudest, most accurate, efficient and</p><p></p><p>reliable systems of today. In no particular order of</p><p></p><p>importance, here they are.</p><p></p><p><a href="http:////forums/usertag.php?do=list&amp;action=hash&amp;hash=10" target="_blank">#10</a> . ORIENTATION AND PHASE</p><p></p><p>A subwoofer system will create sound pressure. This</p><p></p><p>actual air pressure needs to make it to your ears or</p><p></p><p>microphone in an efficient manner. It will not make it</p><p></p><p>there efficiently if you allow this pressure to escape,</p><p></p><p>diffuse, or become out of phase. So, first lets look at</p><p></p><p>your enclosure. Where are your woofers mounted?</p><p></p><p>Secret:</p><p></p><p>Place all the woofers and ports on the same plane for</p><p></p><p>maximum output. Aim this plane rearward. This is the</p><p></p><p>best way to get loud unless your subwoofers are on a</p><p></p><p>wall, completely sealing them on all four walls of your</p><p></p><p>car.</p><p></p><p>Ok next, play with distance from rear of vehicle. You</p><p></p><p>can change the output of your enclosure at different</p><p></p><p>frequencies by playing with this. If you like flat</p><p></p><p>response, your gonna want your enclosure most</p><p></p><p>rearward with room for excursion. This setup is ideal</p><p></p><p>because, it allows the pressure to find its way to your</p><p></p><p>ears at about the same time. If your subwoofer</p><p></p><p>enclosure had woofers on two different planes, the</p><p></p><p>sound pressure would reach your ears at different</p><p></p><p>times. Sound travels at a predetermined speed. If one</p><p></p><p>of your woofers is further away from you its pressure</p><p></p><p>will arrive at a different time creating a loss in</p><p></p><p>pressure. Imagine a simultaneous punch in the chest</p><p></p><p>from two pro boxers. That's woofers on the same</p><p></p><p>plane. Imagine a left jab from a pro boxer as I pull you</p><p></p><p>back, this is two or more woofers on different planes.</p><p></p><p>The first woofer may actually reduce the impact of the</p><p></p><p>second woofer and be weaker than one woofer alone.</p><p></p><p><a href="http:////forums/usertag.php?do=list&amp;action=hash&amp;hash=9" target="_blank">#9</a> . POWER VS. CONE AREA</p><p></p><p>Here I am giving away the secrets about amplifier</p><p></p><p>power vs. size/number of woofers. This Chapter will be</p><p></p><p>short and sweet. Here I will give you the secrets to help</p><p></p><p>you decide to get more woofers or more amplifier</p><p></p><p>power.</p><p></p><p>Secret:</p><p></p><p>Subwoofers are more efficient than amplifiers.</p><p></p><p>This is quite funny as I am comparing apples to</p><p></p><p>oranges, but you will understand in a moment.</p><p></p><p>Woofers are more efficient than amps and this is why.</p><p></p><p>When you double your amplifier power on a woofer,</p><p></p><p>you will gain a maximum of 3 decibels. When you</p><p></p><p>double your woofer count, you will gain 6 decibels.</p><p></p><p>Why would I say a maximum of 3 decibels from a</p><p></p><p>doubling of amp power? Because just because you</p><p></p><p>feed a subwoofer more power, doesn't mean it can</p><p></p><p>effectively turn it into sound. A subwoofer can only</p><p></p><p>turn power into sound pressure in a linear fashion up</p><p></p><p>to a point, where power compression sets in. This is</p><p></p><p>caused by suspension resistance and loss of magnetic</p><p></p><p>strength at extreme excursions. Contrarily, you will</p><p></p><p>always gain 6 decibels by doubling your subwoofer</p><p></p><p>count. Keep in mind, you will need to give every</p><p></p><p>subwoofer its proper enclosure. You cannot simply add</p><p></p><p>more woofers to existing enclosure volume.</p><p></p><p>Here are examples of the formula...</p><p></p><p>I have two twelves + 100 watts = 120 decibels</p><p></p><p>I have four twelves + 100 watts = 126 decibels</p><p></p><p>I have two twelves + 200 watts = 123 decibels</p><p></p><p>I have four twelves + 200 watts = 129 decibels</p><p></p><p>I have four twelves + 400 watts = 132 decibels</p><p></p><p>So, what we have discovered is, if you have the space,</p><p></p><p>add subwoofers instead of more amplifier power.</p></blockquote><p></p>
[QUOTE="dragon.breath, post: 8103429, member: 582656"] this free e-book has been floating around the net for some time now. i thought it might help some of the noobs. 10 Big Bass Secrets I have been asked probably just about every bass question in the book. I'm guessing you have questions too. Here I try to answer them. The crazy thing about bass, is that sometimes you hit, and sometimes you miss. I have seen many car stereo's that were put together with barely any knowledge, hit real hard. I've also seen a lot of money spent with poor results. This book will help you hit, every time. I write this book today because I want you to enjoy your stereo system without headaches. I want yours to be as good or better than the guy winning that competition. I want you to be able to help your friends with their systems and I want you to go into the car stereo store armed with knowledge. It has been almost 25 years since I was bit by the stereo bug and I have learned a lot since I was a kid. Here is some very important stuff that could take some time to discover. I've done it all, set cars on fire, blown amps, woofers, you name it. I've torn my moms car apart and put it back together rigged with speakers. I've won competitions, judged competitions, SQ and SPL alike. Having the biggest bass is more complex than buying the heaviest or largest subwoofer, more complex than buying the longest amp, or the one that says 5000 watts across it. It's more complicated than any one or two of these things. Now that you possess these 10 secrets, your chances of a loud, efficient, reliable and clean subwoofer system are greatly improved. Each of the ten chapters is designed to give you the competitive edge. These industry secrets are the tricks used by the pro's and utilized by manufactures to produce the loudest, most accurate, efficient and reliable systems of today. In no particular order of importance, here they are. [URL="http:////forums/usertag.php?do=list&action=hash&hash=10"]#10[/URL] . ORIENTATION AND PHASE A subwoofer system will create sound pressure. This actual air pressure needs to make it to your ears or microphone in an efficient manner. It will not make it there efficiently if you allow this pressure to escape, diffuse, or become out of phase. So, first lets look at your enclosure. Where are your woofers mounted? Secret: Place all the woofers and ports on the same plane for maximum output. Aim this plane rearward. This is the best way to get loud unless your subwoofers are on a wall, completely sealing them on all four walls of your car. Ok next, play with distance from rear of vehicle. You can change the output of your enclosure at different frequencies by playing with this. If you like flat response, your gonna want your enclosure most rearward with room for excursion. This setup is ideal because, it allows the pressure to find its way to your ears at about the same time. If your subwoofer enclosure had woofers on two different planes, the sound pressure would reach your ears at different times. Sound travels at a predetermined speed. If one of your woofers is further away from you its pressure will arrive at a different time creating a loss in pressure. Imagine a simultaneous punch in the chest from two pro boxers. That's woofers on the same plane. Imagine a left jab from a pro boxer as I pull you back, this is two or more woofers on different planes. The first woofer may actually reduce the impact of the second woofer and be weaker than one woofer alone. [URL="http:////forums/usertag.php?do=list&action=hash&hash=9"]#9[/URL] . POWER VS. CONE AREA Here I am giving away the secrets about amplifier power vs. size/number of woofers. This Chapter will be short and sweet. Here I will give you the secrets to help you decide to get more woofers or more amplifier power. Secret: Subwoofers are more efficient than amplifiers. This is quite funny as I am comparing apples to oranges, but you will understand in a moment. Woofers are more efficient than amps and this is why. When you double your amplifier power on a woofer, you will gain a maximum of 3 decibels. When you double your woofer count, you will gain 6 decibels. Why would I say a maximum of 3 decibels from a doubling of amp power? Because just because you feed a subwoofer more power, doesn't mean it can effectively turn it into sound. A subwoofer can only turn power into sound pressure in a linear fashion up to a point, where power compression sets in. This is caused by suspension resistance and loss of magnetic strength at extreme excursions. Contrarily, you will always gain 6 decibels by doubling your subwoofer count. Keep in mind, you will need to give every subwoofer its proper enclosure. You cannot simply add more woofers to existing enclosure volume. Here are examples of the formula... I have two twelves + 100 watts = 120 decibels I have four twelves + 100 watts = 126 decibels I have two twelves + 200 watts = 123 decibels I have four twelves + 200 watts = 129 decibels I have four twelves + 400 watts = 132 decibels So, what we have discovered is, if you have the space, add subwoofers instead of more amplifier power. [/QUOTE]
Insert quotes…
Verification
Post reply
Forum
Car Audio Discussion
Subwoofers
10 big bass secrets
Top
Menu
What's new
Forum list
