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<blockquote data-quote="Rockguy475" data-source="post: 8056266" data-attributes="member: 565688">MADE in the USA using premium 3/4&quot; MDF with true Labyrinth Slot Venting12&quot; - 15.5&quot;W x 15.0&quot;H x 17.25&quot;D&nbsp; &nbsp;&nbsp; 1.65 cu ft Air Space&nbsp; &nbsp;&nbsp; Tuning - 40 HzThis is what they post on their site about the Labyrinth Venting design :The Labyrinth Design increases the amount of bass your woofer produces without adding any additional power to your system.As with all porting designs, the Labyrinth opens up the back side of the woofer so more sound can escape from the inside chamber of the box.&nbsp; By utilizing both the &quot;push&quot; and &quot;pull&quot; motion of your sub woofer the design of the enclosure is magnifying the sound of the sub woofer without exterior power added.However, the porting process can also decrease sound if done improperly.&nbsp; This is done when the enclosure is tuned incorrectly to the ideal requirement of your sub woofer.&nbsp; A simple explanation would be the sound waves traveling from the &quot;pull&quot; of the woofer will cancel out the sound waves firing from the &quot;push&quot; of the woofer.&nbsp; Not only will the sound be adversely effected but continued play will cause permanent damage to the sub woofer.The design of the Labyrinth Slot Vent brings a controlled sound level increase.&nbsp; By its &quot;MAZE&quot; design, long low frequency sound waves easily escape while short high frequency waves remain trapped unable to cause unwanted cancellation and distortion.&nbsp; In turn, this gives you the listener, loud clean bass a sealed or basic port design can not deliver.</blockquote>

[QUOTE="Rockguy475, post: 8056266, member: 565688"] MADE in the USA using premium 3/4" MDF with true Labyrinth Slot Venting 12" - 15.5"W x 15.0"H x 17.25"D 1.65 cu ft Air Space Tuning - 40 Hz This is what they post on their site about the Labyrinth Venting design : The Labyrinth Design increases the amount of bass your woofer produces without adding any additional power to your system. As with all porting designs, the Labyrinth opens up the back side of the woofer so more sound can escape from the inside chamber of the box. By utilizing both the "push" and "pull" motion of your sub woofer the design of the enclosure is magnifying the sound of the sub woofer without exterior power added. However, the porting process can also decrease sound if done improperly. This is done when the enclosure is tuned incorrectly to the ideal requirement of your sub woofer. A simple explanation would be the sound waves traveling from the "pull" of the woofer will cancel out the sound waves firing from the "push" of the woofer. Not only will the sound be adversely effected but continued play will cause permanent damage to the sub woofer. The design of the Labyrinth Slot Vent brings a controlled sound level increase. By its "MAZE" design, long low frequency sound waves easily escape while short high frequency waves remain trapped unable to cause unwanted cancellation and distortion. In turn, this gives you the listener, loud clean bass a sealed or basic port design can not deliver. [/QUOTE]

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