The 3-way, THX Ultra2-certified SK2-3300 utilizes JBL's most sophisticated driver technologies. Compression drivers are used for the high frequencies due to their reportedly superlative dynamic range, transient response, and resolution. The high frequency driver uses a 1-inch beryllium diaphragm which JBL claims extends the frequency response beyond 50kHz. The driver is mated to a JBL Bi-Radial horn that delivers 60 x 30 degree coverage.
The SK2-3300 is equipped with a 3-inch beryllium diaphragm midrange/high-frequency compression driver that operates in conjunction with a 100 x 60 Bi-Radial horn to handle midrange and treble. The Bi-Radial horns are made from acoustically inert SonoGlass material, designed to eliminate unwanted sonic colorations.
The loudspeaker has dual 10-inch woofers with cones that are treated with proprietary JBL Aquaplas material, which is supposed to dampen the cone's internal resonances for more accurate low-frequency response with lower distortion. The woofers incorporate dual 3-inch heavy-duty edge-wound voice coils, neodymium motor structures, and cast-aluminum frames.
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For more information on similar topics, read our other articles, including Harman Announces New Speaker Line for Revel, New Lexicon DD-8 Multi-room Amplifier, Revel Displays Flagship Ultima2 Series Loudspeakers, and the JBL Project Everest DD66000 loudspeaker review. You can also find more information in our Floorstanding Speaker News section and on our JBL brand page.
The loudspeaker features a heavily-braced enclosure that reportedly minimizes unwanted internal resonances, a curved front baffle designed to eliminate colorations that can be caused by diffraction, dual binding posts that allow bi-wiring or bi-amping, as well as other refinements.