This 2-way 6" bookshelf loudspeaker with MDF enclosure and Elliptical Oblate Spheroidal (EOS) waveguide reproduces sound with unparalleled spaciousness and definition. The PolyPlas (polymer-coated cellulose fiber) cone woofer features traditional JBL engineering; the same technologies used in JBL's Professional equipment that can be found in stadiums, music halls and movie theaters around the world. Shielded components allow placement near video monitors. High-temperature, oversized Kapton® voice coil and HeatScape motor structure allow these speakers to effortlessly play all types of movies and music. The woofers are built on cast-aluminum frames, which reduce distortion and increase power-handling capability. A low-diffraction IsoPower baffle directs the sound power into the room, reducing distortion caused by cabinet vibration.The lock-mitred, computer-designed enclosure requires no bracing. The FreeFlow flared port increases bass response without adding unwanted port noise.