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<blockquote data-quote="bbeljefe" data-source="post: 8207244" data-attributes="member: 655960">Here&#039;s the thread for Torres:<a href="http://www.stevemeadedesigns.com/board/topic/38791-torres-box-tuning-calculator-updated-818/" target="_blank">Torres&#039; Box Tuning Calculator - Updated 8/18 - Subwoofers / Enclosures - SMD Forum</a>Keep in mind that Torres is not a modeling program. It&#039;s just a box cut sheet and tuning calculator. You have to know what you want to end up with before you start with it or t won&#039;t do you any good.As for building SPL boxes, the idea is to tune at or close to the resonant frequency of the vehicle. Most vehicles peak above 50Hz, so if you really plan to do an SPL box, don&#039;t expect it to be musical. If you want some musicality but also SPL, tune at ~40Hz. But again, as has been mentioned, it&#039;s vehicle specific.You also asked about port and box size. Port area is not box dependant, it&#039;s xmax and tuning dependant, meaning you need more port area for subs with higher xmax and boxes with lower tuning than you need with the opposite. If you have too much port area, you&#039;ll overdrive your subs and if too little, you&#039;ll have nasty port noise and low output.</blockquote>

[QUOTE="bbeljefe, post: 8207244, member: 655960"] Here's the thread for Torres: [URL="http://www.stevemeadedesigns.com/board/topic/38791-torres-box-tuning-calculator-updated-818/"]Torres' Box Tuning Calculator - Updated 8/18 - Subwoofers / Enclosures - SMD Forum[/URL] Keep in mind that Torres is not a modeling program. It's just a box cut sheet and tuning calculator. You have to know what you want to end up with before you start with it or t won't do you any good. As for building SPL boxes, the idea is to tune at or close to the resonant frequency of the vehicle. Most vehicles peak above 50Hz, so if you really plan to do an SPL box, don't expect it to be musical. If you want some musicality but also SPL, tune at ~40Hz. But again, as has been mentioned, it's vehicle specific. You also asked about port and box size. Port area is not box dependant, it's xmax and tuning dependant, meaning you need more port area for subs with higher xmax and boxes with lower tuning than you need with the opposite. If you have too much port area, you'll overdrive your subs and if too little, you'll have nasty port noise and low output. [/QUOTE]

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