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6 SA-10'S or 2 15" SP4's
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<blockquote data-quote="T3mpest" data-source="post: 8141177" data-attributes="member: 560148"><p>You probably won't see a huge gain without upping either cone area or power. All things equal there isn't much difference between the 21 and 2 15s. I just made the switch to a 21 and in my case the 21 is the more impressive setup but things weren't equal.. if I had to guess in the same car similar box it'd be close. How much airspace do you have</p></blockquote><p></p>
[QUOTE="T3mpest, post: 8141177, member: 560148"] You probably won't see a huge gain without upping either cone area or power. All things equal there isn't much difference between the 21 and 2 15s. I just made the switch to a 21 and in my case the 21 is the more impressive setup but things weren't equal.. if I had to guess in the same car similar box it'd be close. How much airspace do you have [/QUOTE]
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6 SA-10'S or 2 15" SP4's
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