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<blockquote data-quote="Kyle_Keating" data-source="post: 4334551" data-attributes="member: 582385">Doubling the cone area gives you +6dB (holding mass the same). Doubling the power only gives you 3dB.&nbsp; Cone area rules if you can get it.The only reason to run multiple 10&#039;s is a possible thermal compression advantage of running 4 10&#039;s if they can indeed take more power than the two 15&#039;s and this can sometimes be the case, but not always. You don&#039;t see these things in pro audio or home audio because is just not efficient from a cost performance stand point. Generally you go large and then you start added more subs. 18&#039;s will give you the best distortion SPL ratio and most spl holding all other constraints constant. Most companies don&#039;t really make larger drivers so 18&#039;s are pretty much the norm for the largest &quot;practical&quot; size you can buy.In general:10&#039;s subs generally have bout ~0.031 m^2 of area.&nbsp; 15&#039;s are closer to ~0.08, so a 15 will give you more area than a 10... Two 10&#039;s that move as much as a 15 are probably more expensive to produce than the 15&quot;</blockquote>

[QUOTE="Kyle_Keating, post: 4334551, member: 582385"] Doubling the cone area gives you +6dB (holding mass the same). Doubling the power only gives you 3dB. Cone area rules if you can get it. The only reason to run multiple 10's is a possible thermal compression advantage of running 4 10's if they can indeed take more power than the two 15's and this can sometimes be the case, but not always. You don't see these things in pro audio or home audio because is just not efficient from a cost performance stand point. Generally you go large and then you start added more subs. 18's will give you the best distortion SPL ratio and most spl holding all other constraints constant. Most companies don't really make larger drivers so 18's are pretty much the norm for the largest "practical" size you can buy. In general: 10's subs generally have bout ~0.031 m^2 of area. 15's are closer to ~0.08, so a 15 will give you more area than a 10... Two 10's that move as much as a 15 are probably more expensive to produce than the 15" [/QUOTE]

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