Polk Audio Introduces New RTi Series

Redesign features bold new cosmetics and improved performance “Real Wood, Real High Performance”

January 16, 2007

Today at Consumer Electronics Show booth 21240 in the South Hall of the Las Vegas Convention Center, Polk Audio announced the all-new RTi Series product line of free-standing loudspeakers for 2007. The RTi series occupies the “Better” position in Polk's “Good” (Monitor Series), “Better” (RTi Series) and “Best” (LSi Series) freestanding speaker positioning strategy. The new RTi products feature all-new drivers and tweeters and striking contemporary cosmetics. The floor-standing models feature “Power Port Plus™,” an enhancement of Polk's patented Power Port™ venting technology. There are five models in the range, three floor-standing, and two bookshelf models, all offered in Cherry or Black Oak real wood veneer finishes. Fit and finish is the best in Polk Audio’s history. All-MDF construction with extensive asymmetric cabinet bracing ensures resonance-free enclosures for clean and accurate sound. The new tapered enclosure design serves to break up internal enclosure standing wave resonance resulting in audibly clearer, more accurate midrange response. All RTi models feature the latest generation Dynamic Balance™ drivers and tweeters. The bass/midrange drivers used throughout the RTi range use polymer/mineral composite cones. The 1-inch tweeter is a silk/polymer composite dome for smoother response and better detail than the tweeter used in the previous RTi Series. It features a neodymium magnet, low-viscosity ferro-fluid cooling and a heat sink on the back of the magnet for better power handling and reliability. All models feature Polk's patented Power Port technology that reduces turbulence at the mouth of the port. Power Port vastly reduces “chuffing” or “port noise” and provides deeper, more powerful, lower distortion bass than could be achieved with conventional ported or sealed designs of comparable size. The floor-standing models, RTi A5, RTi A7, and RTi A9, feature “Power Port Plus” an enhancement in Power Port technology. Power Port Plus uses two ports (one front, one rear) and internal “plates” to further reduce air turbulence and increase bass efficiency. A computer designed tweeter faceplate radius, stand-off grilles, tapered enclosure and baffle edge radii all contribute to minimizing diffraction for more open and spacious imaging. All models except for the RTi A9 feature an Acoustic Resonance Control (ARC) port that is tuned to cancel internal standing waves that would ordinarily distort midrange reproduction. Patented ARC technology gives the RTi speakers unusually clear, natural and detailed midrange performance. The RTiA9’s midrange driver and tweeter are housed in a sealed enclosure that is isolated from the woofer enclosure to prevent interference effects that would degrade midrange performance, negating the need for an ARC Port. . The two larger floor-standing models, RTi A7 and RTi A9, use multiple long-throw 7" woofers to combine the wide dynamic range benefits of a single large woofer with the tight, punchy, accurate bass response of small woofers. The RTi A7’s dual 7" woofers have 50% more surface area than a single 8 inch woofer while the RTi A9’s three 7" woofers have the same surface area as a single 12 inch woofer. Combined with Power Port Plus, these multiple woofers deliver deep high impact bass with speed and accuracy. The RTi models are magnetically shielded to allow safe placement next to televisions or video monitors. All models feature gold plated 5-way binding posts with dual inputs for bi-amplification or bi-wiring. The new RTi Series will be available in authorized US and Canadian retailers in May 2007. About Polk Audio Polk Audio is an award-winning designer and manufacturer of high performance audio products and the largest audio brand of Directed Electronics, Inc. (NASDAQ, DEIX). Founded in 1972 by three Johns Hopkins University graduates, Polk Audio holds over 50 patents for advances in loudspeaker design and technology. Polk's products include loudspeakers and electronic components for home, auto and marine applications, the first satellite radio home component tuner, the world's first audiophile-grade active IP-addressable loudspeaker, the first THX Ultra2 Certified in-ceiling loudspeaker, and I-Sonic—the first entertainment system to include HD radio, XM Connect & Play capability and a DVD player. Polk products are available through authorized specialist consumer electronics retailers worldwide. For more information and the location of a Polk retailer or distributor in your area visit the www.polkaudio.com or call us at 1-800-377-7655 (USA and Canada). Outside of North America call +1 (410) 358-3600.

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