My Account | View Cart  (0 items) | Checkout Search for Welcome to Klaus Audio! Check out our wide selection of CUSTOM subwoofer boxes!  Single Subwoofer Boxes  Dual Subwoofer Boxes  Triple Subwoofer Boxes  Quad Subwoofer Boxes  Solo-Baric L5 & L7 Boxes  JL W7 Subwoofer Boxes  Subwoofer Box Parts  Sealed vs. Ported  Ported Box Tuning  Slot vs. Flared Ports  More Articles...  Photo Gallery  Carpet Colors  Testimonials  Contact Us  Company Info  Site Map  Policies  Back to Home Page Klaus Audio Articles Subwoofer Box Help Sealed vs. Ported Choosing the Correct Tuning MDF vs. Particleboard Flared Ports vs. Slot Ports The Double-Layered Front Baffle Using Polyfill in a Subwoofer Box Installation Help Subwoofer Box Placement FAQ's How are Klaus Audio subwoofer boxes constructed? Do I need separate chambers? Copyright © Klaus Audio, Rhinelander, WI. All Rights Reserved.