Polk Audio RTi8

from polkaudio.com

Driver Complement Mid/Woofer 2 - 6-1/2" Diameter (16.51cm) Polymer Composite Dynamic Balance Cones with Rubber Surrounds Tweeter 1 - 1" Diameter (2.54cm) Silk/Polymer composite dome Electrical Overall Frequency Response 30Hz-27kHz Lower -3dB Limit 40Hz Upper -3dB Limit 26kHz Nominal Impedance 8 ohms Recommended Amplifier Power 20-250 w/channel Efficiency 90 dB Crossover 2.2kHz, 12dB/Oct Low Pass, 18dB/Octave High Pass Inputs Dual (bi-amp) gold plated 5-way binding posts Dimensions Cabinet Size 41-5/8" H x 7-3/4" W x 15-1/2" D (105.73cm H x 19.68cm W x 39.37cm D) Enclosure Type Vented via Power Port Shipping/Other Total Shipping Weight 55.00 lbs. (24.95kgs) Speaker Warranty 5 years parts and labor Accessories (comes with) Outrigger levelling/carpet spikes

REAL WOOD, REAL HIGH PERFORMANCE Why settle for vinyl speakers when you can have the warmth and beauty of real wood at the same price, with speakers from the RTi Series. They are wonders of industrial design: real wood, radiant with metallic highlights and racing car lines. Classic Polk performance in a design that speaks to today's high-end home décor. True performance art.

INNOVATIVE DESIGN

   * Dynamic Balance® polymer composite drivers for smooth wide-range response with low distortion. PowerPort® bass venting for superior clean, low distortion bass that you can really feel.
   * Magnetic shielding for safe placement near video sources.
   * Mylar bypass capacitors in the crossovers extend high frequency response and improve detail and transparency.
   * Acoustic Resonance Control (ARC Port) technology for more natural midrange reproduction.

   * 1" silk dome tweeter with a neodymium magnets for clear, detailed highs; heat-sinked (shown right) for superior heat dissipation, power handling and reliability.
   * Dual, bi-ampable gold-plated 5-way binding post inputs (with wide holes for large-gauge bare wire connections) for the most secure connections and the most versatile wiring applications.
   * Butyl rubber surrounds for high performance durability
   * Acoustically inert stamped driver baskets.
   * Floating anti-diffraction grilles minimize grille diffraction for spacious, 3-dimensional imaging.

Anti-Resonant Enclosure Cabinet resonance can ruin the sound of an otherwise well-designed speaker. You don't want to hear your speaker cabinets humming along with the music (they don't even know the words), you want to hear the uncolored sound launched by the drivers and tweeters. We take special pains to make sure that Polk speaker cabinets are resonance-free. All wood cabinet Polk Audio loudspeakers are constructed of costly low-resonance MDF instead of the cheaper and more resonant particle board used by many competitive speaker brands. RTi Series Speakers feature additional anti-resonance strategies, like asymmetric braces.

   * All-MDF construction with massive asymmetric cabinet bracing ensures resonance-free enclosures for accurate sound. (Cutaway view of RTi12 shown left, bracing is similar on other RTi models)
   * Adjustable leveling feet in an outrigger base to provide stability on any type of flooring.
   * Real Wood finishes at vinyl prices.