db840 or MM840 for LSi15 upgrade?

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Posts: 203
edited December 2011 in Speakers
Hi all
I know that everyone recommends db840 as a bass driver upgrade for LSi15. But what about MM840 from Polk? This seems to be a better driver based just on the specs, going down to 26Hz, vs 30Hz on db. Both single coil 4Ohm.

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  • Posts: 14,340
    edited December 2011
    There are more important parameters than FS or RE under these circumstances, such as QTS, VAS, efficiency, etc... From a quick look, it appears the MM may require a larger enclosure, which would create a hump in bass response and not dig as deep if installed in the LSi15's cabinet.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

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