Polk Audio RTi12 BLACK Floorstanding Loudspeakers (PAIR) for $800

Ebay.com has Polk Audio RTi12 BLACK Floorstanding Loudspeakers (PAIR) for $800 with a free shipping.
INNOVATIVE DESIGN
The new standard in all out musical performance, the RTi12 floorstanding loudspeaker is the epitome of “Real Wood, Real High Performance.” Its three 7″ woofers benefit from having the surface area of a single large woofer with the low-mass and acceleration of small woofers. So RTi12 bass response is tighter, punchier, more accurate; accentuated by the addition of PowerPort Plus Bass Venting Technology.
- Three 7″ woofers have the surface area of a single large woofer with the low-mass and acceleration of small woofers, for a high force-to-mass ratio — bass response is tighter, punchier, more accurate.
- Dynamic Balance® polymer composite drivers for smooth wide-range response with low distortion.
- PowerPort® Plus bass venting for superior clean, low distortion bass that you can really feel.
- 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.
- 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.
Anti-Resonant Enclosure
- 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.