Key Features

12-inch long-throw front-firing woofer for deep, impactful bass performance
Built-in 300 W Class D amplifier for powerful, controlled low-frequency output
Power Port technology reduces port noise and improves airflow for smoother bass
Adjustable low-pass crossover for seamless integration with main speakers
Phase control for precise timing alignment with your audio system
Line-level and LFE inputs for flexible connectivity with AV receivers and preamps
Rigid, acoustically optimized cabinet to minimize distortion and resonance
Large design suitable for medium to large rooms
Auto power on/off feature for energy efficiency
Ideal for enhancing home theatre and music with rich, detailed bass

Description

Polk Audio Signature Elite ES12 – 12 Inches Front Firing 300W Powered 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
Two internal Power Ports
Time-Smart Phase Control
Acoustically optimized cabinet
Advanced DSP

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 the bass you hear and the 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.

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.

Specifications

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
Low Pass Filter Adjustment Range	50-160Hz
Phase Adjustment Range	-135° to 180° in 45° increments
Dimensions (H x W x D) inches	19 x 14.3 x 19 in.