Thank you Tor choosing G-Loge! Guile possibly the most advanced loudspeaker enclosure available for Mobile Electronics and the ONLY sub woofer enclosure with interchangeable bates; affording the user a multitude of installation options (See your Q Logic dealer for details), and the Cs -Agni (patent-pending), a milt-diameter woofer mounting adapter that can extract optimum performance from any diver you choose! Follow these instructions to custom Bf your driver io Ie enclosure.