Signature Elite ES12 Subwoofer

12" Signature Elite subwoofer

The 12" Signature Elite ES12 subwoofer enhances the largest home-theater and music systems. Equipped with a robust Class D amplifier, Power Port™ technology, and Time-Smart Phase Control, the ES12 delivers impactful bass with unparalleled precision. Its sleek cabinet complements Signature Elite systems and fits anywhere.

• Forward-firing long-throw 12" woofer
• Acoustically optimized cabinet
• Two internal Power Ports
• Advanced DSP
• Time-Smart Phase Control

Room-filling bass for your biggest spaces

Impactful bass for expansive soundscapes

Enhances the largest home-theater and music systems—from stereo to full Atmos—with deep, immersive bass you’ll feel in your bones.

Seamless sound

Sophisticated settings like Time-Smart Phase Control make system blending effortless, for smooth, even sound.

Fits anywhere

With a narrow cabinet and front-firing orientation, the ES12 sounds great anywhere—even against walls and on shelves.

Powerful Bass

High-powered amplifier

Provides power and control to deliver impactful bass that fills the largest rooms, offering definition, dynamics, and clarity at any volume.

Deep, Defined Lows

Forward-firing long-throw woofer

A front-facing, high-excursion 12” woofer produces deep, defined lows down to 18 Hz. It’s the difference between bass you hear and bass you feel.

Clean and Effortless Sound

Acoustically optimized cabinet

A rigidly built, ported cabinet is reinforced with FEA-optimized internal bracing that minimizes resonances and coloration, ensuring clean, effortless reproduction of low-frequency detail.

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.

Polk Audio Signature Elite ES12 12" Subwoofer
Technical features 12" mineral-filled polypropylene cone woofer
Dual Power Port®
Audio inputs LFE (RCA)
Stereo line level (2 RCA)
Frequency response (-3dB) 22 Hz–250 Hz
Frequency response (-10dB) 18 Hz–350 Hz
Lowpass filter adjustment range 50–160 Hz
Phase adjustment range -135° to 180° in 45° increments
Available colors Black
Item Dimensions (H × W × D)
19.0 × 14.3 × 19.0 in.
483 × 362 × 483mm
Product weight 47.6 lbs/21.6 kg