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<blockquote data-quote="luvinthebass" data-source="post: 3715682" data-attributes="member: 558149"><p>My Formula that is pretty dead on with 1 sub only</p><p></p><p>sensitivity of sub: 86 db</p><p></p><p>remember it takes 3 db's for double the power</p><p></p><p>86 db = 1 watt</p><p></p><p>89 db = 2 watts</p><p></p><p>92 db = 4 watts</p><p></p><p>95 db = 8 watts</p><p></p><p>98 db = 16 watts</p><p></p><p>101 db = 32 watts</p><p></p><p>104 db = 64 watts</p><p></p><p>107 db = 128 watts</p><p></p><p>110 db = 256 watts</p><p></p><p>113 db = 512 watts</p><p></p><p>116 db = 1024 watts</p><p></p><p>119 db = 2048 watts</p><p></p><p>so... 128 watts to LA 12" sub + car transfer function of 12 db's = 119 db + or - 3 with windows up or down, on db meter it read 119 with them up, 122 with windows slightly down for my car.</p><p></p><p>1012 watts to a future sub for me + car transfer function of 12 db's = 128 db + 3 db's (for ported) = 131 db's</p></blockquote><p></p>
[QUOTE="luvinthebass, post: 3715682, member: 558149"] My Formula that is pretty dead on with 1 sub only sensitivity of sub: 86 db remember it takes 3 db's for double the power 86 db = 1 watt 89 db = 2 watts 92 db = 4 watts 95 db = 8 watts 98 db = 16 watts 101 db = 32 watts 104 db = 64 watts 107 db = 128 watts 110 db = 256 watts 113 db = 512 watts 116 db = 1024 watts 119 db = 2048 watts so... 128 watts to LA 12" sub + car transfer function of 12 db's = 119 db + or - 3 with windows up or down, on db meter it read 119 with them up, 122 with windows slightly down for my car. 1012 watts to a future sub for me + car transfer function of 12 db's = 128 db + 3 db's (for ported) = 131 db's [/QUOTE]
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