Polk RT-15i Bookshelf Speakers

Polk RT-15i bookshelf speakers with power port.

Features

Dynamic Balance: Dynamic Balance drivers are used for wide, smooth response and low distortion.
Blue Composite Woofers: The speaker uses a blue composite Dynamic Balance woofer for clean midrange and deep, accurate bass. For a smoother response and improved durability, the woofer uses a rubber surround.
Silk Tweeters: The speaker has a Dynamic Balance silk dome tweeter for smooth, clear highs.
Anti-Diffraction Bezel: The anti-diffraction bezel and grille system minimizes grille-edge reflections for more open, spacious, lifelike imaging.
Power Port Technology: There is a port tube opening on the rear of each speaker which is directed to a power port. This is a funnel shaped plate on the rear of the speaker which helps produce better bass. This venting system allows air velocity to slow gradually, vastly reducing air turbulence, and delivering greater bass efficiency than conventional ports.
Acoustic Resonance Control (ARC): Internal cabinet resonance can impart a “thick” character to voices. Polk’s Acoustic Resonance Control port system overcomes this problem. In addition to the bass port, the speaker has two front-firing ports that are tuned to suppress the internal cabinet resonance, resulting in clear and natural midrange.
5-Way Binding Posts: The gold plated 5-way binding posts will accept bare wire, pin connectors, spade connectors, banana plugs, and dual banana plugs.
Woofer: 5.25″
Tweeter: 0.75″ silk dome
Sensitivity: 89 dB
Power handling: 100 watts
Frequency response: 55Hz-24kHz
Dimensions: 285h x 170w x 215d
Weight: 4.2 kgs
$200