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<blockquote data-quote="bbeljefe" data-source="post: 8167648" data-attributes="member: 655960">Depends on your definition of performance. Do you only care about SPL? Do you want to reach way down low and still have some volume? Do you want clean and loud bass or just loud bass at 40 and up?A sealed box is flat... no matter how many woofers are in it and no matter how much power you feed them. In other words, if a sealed box for one SD-8 hits -3dB at 38Hz, fifty SD-8s will be -3dB at 38Hz with 40,000 watts on them. Will they be loud? Of course. But they will also roll off at or above Fs and you&#039;ll not get any acoustical gains from the box, so the frequencies where most bass heavy music is oriented today will be where your box falls on its arse... or has already fallen on its arse.In all seriousness, you&#039;re better off IB than sealed. At least with an IB setup you have ample air space for the woofer to move. Sealed boxes.... especially those designed with respect to saving space as opposed to complimenting the driver, do not perform well below the Fs of the driver and usually fall off well above that point. And the SD-8 has an Fs of ~45 Hz, so a small sealed box will be mud below 50.</blockquote>

[QUOTE="bbeljefe, post: 8167648, member: 655960"] Depends on your definition of performance. Do you only care about SPL? Do you want to reach way down low and still have some volume? Do you want clean and loud bass or just loud bass at 40 and up? A sealed box is flat... no matter how many woofers are in it and no matter how much power you feed them. In other words, if a sealed box for one SD-8 hits -3dB at 38Hz, fifty SD-8s will be -3dB at 38Hz with 40,000 watts on them. Will they be loud? Of course. But they will also roll off at or above Fs and you'll not get any acoustical gains from the box, so the frequencies where most bass heavy music is oriented today will be where your box falls on its arse... or has already fallen on its arse. In all seriousness, you're better off IB than sealed. At least with an IB setup you have ample air space for the woofer to move. Sealed boxes.... especially those designed with respect to saving space as opposed to complimenting the driver, do not perform well below the Fs of the driver and usually fall off well above that point. And the SD-8 has an Fs of ~45 Hz, so a small sealed box will be mud below 50. [/QUOTE]

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