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Biggest concern is the DCR of the replacement tweeter as the values of every component in series and parallel with it were designed for the original driver. Any DCR other than a very close match to the original driver will provide a different crossover point and will likely cause overlap or dips (the woofer's cross point will remain static), ultimately causing phase issues which will destroy any harmony/coherency you enjoyed with the stock set. What's tough to know is if the 4th order slope was achieved with a combination of the driver's natural roll off and the electrical filter, or if it's a true 4th order filter on a driver that actually plays much lower than that. As mentioned, sensitivity should play into your decision making as well. This can cause the same problems above relating to overlaps or dips forcing a different cross point.

[QUOTE="ciaonzo, post: 8024378, member: 607015"] Biggest concern is the DCR of the replacement tweeter as the values of every component in series and parallel with it were designed for the original driver. Any DCR other than a very close match to the original driver will provide a different crossover point and will likely cause overlap or dips (the woofer's cross point will remain static), ultimately causing phase issues which will destroy any harmony/coherency you enjoyed with the stock set. What's tough to know is if the 4th order slope was achieved with a combination of the driver's natural roll off and the electrical filter, or if it's a true 4th order filter on a driver that actually plays much lower than that. As mentioned, sensitivity should play into your decision making as well. This can cause the same problems above relating to overlaps or dips forcing a different cross point. [/QUOTE]

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