Signature Elite ES12 Subwoofer Larger-than-life bass with unrivaled precision Dual Power Ports Two Polk Power Ports minimize turbulence, reducing noise and distortion that mask midrange clarity. Advanced DSP High-resolution 32-bit floating point processing with group delay-minimizing filters and precision limiters enables clearer bass with crisper transients. Time-Smart Phase Control Time-Smart Phase Control provides 360 degrees of phase adjustment centered around lowpass filter settings, ensuring precise system blending. Adjust polarity in 45-degree increments, displayed on LED indicators. 4th-order lowpass filter An adjustable 4th-order lowpass filter provides precise frequency control, for seamless integration with main speakers and superior overall system performance with open, balanced lows and mids. Power-Save Mode An auto-sensing power supply reduces power consumption when the subwoofer is not in use.
