With the Polk Audio RTi4 bookshelf speakers, you'll get superior dynamic impact from a stylish speaker with clean lines and radiant metallic details. It's great for use as main/front speakers--or direct radiating surround speakers--in high performance A/V or music-only systems.

Polk Audio RTi4 bookshelf speakers in black.

Key Features

• Dynamic Balance polymer composite driver for smooth wide-range response with low distortion.
• PowerPort bass venting for superior clean, low distortion bass that you can really feel.
• Acoustic Resonance Control (ARC Port) technology for more natural midrange reproduction.
• 1-inch silk dome Dynamic Balance tweeter features a neodymium magnet for clear, detailed highs; heat-sinked for superior heat dissipation, power handling and reliability.
• PowerPort vent doubles as a strong, built-in wall-mounting bracket for easy, safe placement.
• 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.
• 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.
• Timbre-matched to fit into any Polk Audio home theater or multi-channel music system for a more realistic, more seamless surround sound environment.

Specifications

• Overall frequency response: 50Hz-27kHz
• Inputs: Dual (bi-amp) gold plated 5-way binding posts
• Mounting options: Shelf, stand or wall-mount with built-in keyhole slot
• Enclosure type: Vented via rear-mounted Power Port and a single front mounted ARC port
• Dimensions: 12 x 7 x 11-1/2 inches (HxWxD)
• Warranty: 5 years parts and labor (original purchaser)