The exclusive Plus-12 driver delivers exceptional linearity, low-distortion and excellent detail. An ultra light and rigid composite cone provides an excellent transient response Sledge Amplification - Intelligent and Sophisticated PowerSTA-800D front 800 The Sledge STA-800D amplifier is a perfect complement to the Plus-12 driver, delivering 800 watts of clean DSP-controlled power. Sledge Amplification - Intelligent and Sophisticated PowerSTA-800D front 800 The Sledge STA-800D amplifier is a perfect complement to the Plus-12 driver, delivering 800 watts of clean DSP-controlled power

Polk's exclusive dynamic sonic engine design optimizes the midrange driver and the ring radiator tweeter in separate interior chambers for improved transient response, superior imaging and greater horizontal off-axis response. Enhanced, re-engineered ring radiator tweeters extend top-end response for incredible details and realistic imaging. Extended Linear Motion voice coil design allows lots of movement in a limited space, eliminating impedance and extending mid- and high-frequency response.