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<blockquote data-quote="Lasherž" data-source="post: 8724620" data-attributes="member: 679555"><p>Sound intensity is about air displacement (working surface area of the cone and x-mech), resonance (the box/your vehicle), and air pressure (the ability of your subwoofer to compress and your box design). An 8&quot; sub has lower displacement if it has the same throw as a 15&quot;, but in my opinion you&#039;re better off sizing a large low-tuned ported enclosure if you want volume and then finding subs that provide as large as possible surface area and x-mech that fits those dimensions at the RMS wattage levels your car can provide (and sticking to brands that won&#039;t rip you off). Sometimes the largest you can fit is 4x8&quot;s, sometimes you can go bigger. A word of caution though and the point I&#039;m trying to make about subwoofer size, is that while kicker makes square subwoofers which provide very good working surface area in a shape that&#039;s great for fitting as many as possible in a vehicle, they&#039;re considered entry level subwoofers because they barely meet their ratings and use so-so materials. There&#039;s a lot more to it than that and most of the difference is in the general quality of the subwoofer materials and even more importantly, the enclosure/car you shove it in.</p></blockquote><p></p>

[QUOTE="Lasherž, post: 8724620, member: 679555"] Sound intensity is about air displacement (working surface area of the cone and x-mech), resonance (the box/your vehicle), and air pressure (the ability of your subwoofer to compress and your box design). An 8" sub has lower displacement if it has the same throw as a 15", but in my opinion you're better off sizing a large low-tuned ported enclosure if you want volume and then finding subs that provide as large as possible surface area and x-mech that fits those dimensions at the RMS wattage levels your car can provide (and sticking to brands that won't rip you off). Sometimes the largest you can fit is 4x8"s, sometimes you can go bigger. A word of caution though and the point I'm trying to make about subwoofer size, is that while kicker makes square subwoofers which provide very good working surface area in a shape that's great for fitting as many as possible in a vehicle, they're considered entry level subwoofers because they barely meet their ratings and use so-so materials. There's a lot more to it than that and most of the difference is in the general quality of the subwoofer materials and even more importantly, the enclosure/car you shove it in. [/QUOTE]

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