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12" Sealed Subwoofer BEmpty oxes
Sealed enclosures reproduce the low frequencies more accurately than ported enclosures because the air inside the box acts as a shock absorber, allowing the subwoofer to move back and forth in more control. The sound waves are reproduced more accurately than with a ported enclosure but the subwoofers may require slightly more power from the amplifier to get the woofers to move as much as they would in a ported enclosure. Sealed enclosures are generally smaller and easier to build because there is no port to tune. You simply build the enclosure to the proper specification for your chosen subwoofer(s).