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General Car Audio
Where to buy pre-tuned custom boxes?
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<blockquote data-quote="Oinkypig" data-source="post: 8320158" data-attributes="member: 579294"><p>big port area lessens port noise for small boxes reducing "oomgf". less port area will increase rate of airflow. More port volume will tune lower and less will tune higher. usually between will do 30-45h properly.. youtube for a tutorial on how to enter everything. Double check with winisd. aim for less than 105ft.s of port airflow at specific box's tuning frequency. Maybe You rely on the way your sub is powered more heavily than the port of the enclosure. Qbe elite ftw. Start with internal box displacement dimensions. use program to discover port length. determine internal volume of port. match internal volume with length(only inside dimensions) under contraints. Then find volume displaced by entire port. subtract from first instance of enclosure volume and divide by 2d (LWH) to determine third length on edge/side of box to approximate all possible outside lengths. You now how your subswoofer box with a port tuned to your own specs. Depending on airflow. Anything "before" the drop off of your amp's Low pass filter doesnt matter if youre alright in tuning gains properly</p></blockquote><p></p>
[QUOTE="Oinkypig, post: 8320158, member: 579294"] big port area lessens port noise for small boxes reducing "oomgf". less port area will increase rate of airflow. More port volume will tune lower and less will tune higher. usually between will do 30-45h properly.. youtube for a tutorial on how to enter everything. Double check with winisd. aim for less than 105ft.s of port airflow at specific box's tuning frequency. Maybe You rely on the way your sub is powered more heavily than the port of the enclosure. Qbe elite ftw. Start with internal box displacement dimensions. use program to discover port length. determine internal volume of port. match internal volume with length(only inside dimensions) under contraints. Then find volume displaced by entire port. subtract from first instance of enclosure volume and divide by 2d (LWH) to determine third length on edge/side of box to approximate all possible outside lengths. You now how your subswoofer box with a port tuned to your own specs. Depending on airflow. Anything "before" the drop off of your amp's Low pass filter doesnt matter if youre alright in tuning gains properly [/QUOTE]
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Where to buy pre-tuned custom boxes?
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