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<blockquote data-quote="phish368" data-source="post: 2931533" data-attributes="member: 570654">I have a pair of JL Audio VR650-csi components.&nbsp; Tweeter, driver and a passive crossover.I also have an alpine processor H701 which allows me to run them active, which i am currently doing and loving it. (no passive crossover being used)I was thinking about crossovers, slopes and ranges today and when i went active on my JL&#039;s I basically followed the slope settings that the passive crossover was:1st order low-pass circuit and 3rd order high pass (ie: -6db slope and -18db slope)What is the benefit of the -6db and -18db slope on these components vs. -12db or -24db?Because the components are 1st order low-pass circuit and 3rd order high pass, should I have the slope setting between the driver and my sub as -6db or -18db?&nbsp; Or should i have that slope setting -12db or -24db?So basically to sum it up, I currently have my settings as:tweeter&nbsp; ==&amp;gt; 4.5khz -18db slope high-passdriver&nbsp; &nbsp; &nbsp; ==&amp;gt; 4.5khz -6db slope low-pass and 90hz -12db high-passSub&nbsp; &nbsp; &nbsp; &nbsp;&nbsp; ==&amp;gt;&nbsp; 90hz -12db low-passPhase at zero for all.Also should I have my phase set to 180 for any of my speakers because of the slope settings?&nbsp; Should I have my slope settings changed? if so, any reason why?&nbsp; Sorry for the noob questions but I figure if I ask some of the experts i&#039;ll get a much better sound in my car.Please let me know if I&#039;m missing any info in here and I&#039;ll include it.</blockquote>

[QUOTE="phish368, post: 2931533, member: 570654"] I have a pair of JL Audio VR650-csi components. Tweeter, driver and a passive crossover. I also have an alpine processor H701 which allows me to run them active, which i am currently doing and loving it. (no passive crossover being used) I was thinking about crossovers, slopes and ranges today and when i went active on my JL's I basically followed the slope settings that the passive crossover was: 1st order low-pass circuit and 3rd order high pass (ie: -6db slope and -18db slope) What is the benefit of the -6db and -18db slope on these components vs. -12db or -24db? Because the components are 1st order low-pass circuit and 3rd order high pass, should I have the slope setting between the driver and my sub as -6db or -18db? Or should i have that slope setting -12db or -24db? So basically to sum it up, I currently have my settings as: tweeter ==> 4.5khz -18db slope high-pass driver ==> 4.5khz -6db slope low-pass and 90hz -12db high-pass Sub ==> 90hz -12db low-pass Phase at zero for all. Also should I have my phase set to 180 for any of my speakers because of the slope settings? Should I have my slope settings changed? if so, any reason why? Sorry for the noob questions but I figure if I ask some of the experts i'll get a much better sound in my car. Please let me know if I'm missing any info in here and I'll include it. [/QUOTE]

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