Join Date: Dec 2004
Location: Monroe, WA (Seattle area)
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This is just my opinion... YMMV... but I do think that on the whole sealed subs (acoustic suspension) are cleaner and tighter, and are therefore better for music reinforcement. They seem to be "faster" -- at least they keep up with my planar magnetic speakers better -- and are more pitch accurate.
However, for most movies, where lots of slam, bam, boom, shaking, rattling, and otherwise just making very loud sounds such as car crashes and explosions, then a ported or slot loaded or passive radiator sub will very often give you higher SPL's and lower frequencies for less money.
Personally, I like the accuracy of the sealed subs -- such as those from ACI, Onyx, Velodyne, Vandersteen, and Martin Logan (to name a few)... but that's my preference, not necessarily everyone's.
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