Key Features

8-inch front-firing long-throw woofer designed for tight, impactful bass
Built-in Class D amplifier delivering clean, controlled low-frequency performance
Power Port technology reduces air turbulence and port noise for smoother bass output
Adjustable low-pass crossover for seamless integration with speakers
Phase control for accurate bass alignment with the main system
Line-level and LFE inputs for flexible connection with AV receivers and stereo systems
Rigid, acoustically optimized cabinet to minimize distortion and resonance
Compact design suitable for small to medium-sized rooms
Auto power on/off feature for energy efficiency
Ideal for home theatre and music systems requiring precise, punchy bass

Description

Polk Audio Signature Elite ES8 – 8 Inches Front Firing Powered Subwoofer

8” Signature Elite subwoofer

The Signature Elite ES8 8″ subwoofer enhances the low-end performance of compact home-theatre systems. Equipped with a robust Class D amplifier, Power Port technology, and Time-Smart Phase Control, the ES10 subwoofer delivers balanced, impactful bass with unparalleled precision. Its sleek cabinet complements Signature Elite systems and fits anywhere.

Forward-firing long-throw 8″ woofer
Internal Power Port
Time-Smart Phase Control
Acoustically optimised cabinet
Advanced DSP

Dynamic bass for small sound systems

Powerful bass, small footprint

Bring impactful bass to smaller spaces. Perfect for compact home theatres or music systems, or for apartment dwellers who crave deep lows.

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 ES8 subwoofer sounds great anywhere—even against walls and on shelves.

Defined Bass

High-powered amplifier

Provides power and control to deliver impactful bass in compact spaces, offering defined lows, dynamics, and clarity at any volume.

Bass You Feel

Forward-firing long-throw woofer

A front-facing, high-excursion 8” woofer produces deep, defined lows down to 28 Hz. It’s the difference between the bass you hear and the bass you feel.

Clean and Effortless Sound

Acoustically optimised cabinet

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

Signature Elite ES8 Subwoofer

The perfect complement to compact Signature Elite systems

Internal Power Port

A Polk Power Port minimises turbulence, reducing noise and distortion that mask midrange clarity. Its front-firing configuration means accurate bass no matter where you place your subwoofer.

Advanced DSP

High-resolution 32-bit floating point processing with group delay-minimising filters and precision limiters enables clearer bass with crisper transients.

Time-Smart Phase Control

Time-Smart Phase Control provides 360 degrees of phase adjustment centred 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	8″ mineral-filled polypropylene cone woofer, Power Port ®
Audio Inputs	LFE (RCA), Stereo line level (2 RCA)
Frequency Response (-3dB)	32 Hz – 180 Hz
Frequency Response (-10dB)	28 Hz – 400 Hz
Low Pass Filter Adjustment Range	50-160Hz
Dimensions (H x W x D) inches	15.1 x 12.8 x 15.2
Phase Adjustment Range	-135° to 180° in 45° increments