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<blockquote data-quote="akheathen" data-source="post: 7258311" data-attributes="member: 629234">more specific on your conditions/desires. sub b sounds like a mid-level versitile sub that likes ported enclosure, probably &quot;name brand&quot; ppcone, and in the 400w range.&nbsp; sub &quot;a&quot; sounds more power-hungry, and geared toward spl, and sealed enclosures.&nbsp; are they both 12&#039;s? 15&#039;s?&nbsp; what do you want out of them?&nbsp; also, knowing what sub they are, and how it&#039;s made, can point to how they will break-in and change.&nbsp; ok, i guess to kind-of answer your question......sub a: not quite as strong, or forecefull, but can probably be abused and like just a tad lower, but is less efficient, and likely lacks in sq, especially in higher frequencies.&nbsp; the cone assembly is heavier, the motor is weaker, and it&#039;s force is also a little lacking, compared to &quot;b&quot;b: an all-around better looking sub, that has greater motor and cone force, with less resistance, and higher efficiency.&nbsp; down/upside (depending on what you want)&nbsp; it will mainly be at home in a ported enclosure, since it has low coushining, which means you are going to have to watch for excursion at the roll-off, however, the lighter cone assy will help out in the area, and so will it&#039;s stiffness, or &quot;spring-back&quot; at/close to it&#039;s x-mech (mechanical limits)do you have the rest of the parameters?....i would also like to say that this is my personal opinion, and i am just a novice/hobbyist, but there are those on this forum that could probably tell you exactly what 2 subs those are....</blockquote>

[QUOTE="akheathen, post: 7258311, member: 629234"] more specific on your conditions/desires. sub b sounds like a mid-level versitile sub that likes ported enclosure, probably "name brand" ppcone, and in the 400w range. sub "a" sounds more power-hungry, and geared toward spl, and sealed enclosures. are they both 12's? 15's? what do you want out of them? also, knowing what sub they are, and how it's made, can point to how they will break-in and change. ok, i guess to kind-of answer your question...... sub a: not quite as strong, or forecefull, but can probably be abused and like just a tad lower, but is less efficient, and likely lacks in sq, especially in higher frequencies. the cone assembly is heavier, the motor is weaker, and it's force is also a little lacking, compared to "b" b: an all-around better looking sub, that has greater motor and cone force, with less resistance, and higher efficiency. down/upside (depending on what you want) it will mainly be at home in a ported enclosure, since it has low coushining, which means you are going to have to watch for excursion at the roll-off, however, the lighter cone assy will help out in the area, and so will it's stiffness, or "spring-back" at/close to it's x-mech (mechanical limits) do you have the rest of the parameters? ....i would also like to say that this is my personal opinion, and i am just a novice/hobbyist, but there are those on this forum that could probably tell you exactly what 2 subs those are.... [/QUOTE]

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