Polk Audio Signature Elite ES8 / 8” Subwoofer

The Signature Elite ES8 8" subwoofer enhances the low-end performance of compact home-theater 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
•  Acoustically optimized cabinet
• Internal Power Port
• Advanced DSP
• Time-Smart Phase Control

• 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

Powerful bass, small footprint

Bring impactful bass to smaller spaces. Perfect for compact home theaters 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.

High-powered amplifier

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

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 bass you hear and bass you fee

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.

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

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 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.

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.

An auto-sensing power supply reduces power consumption when the subwoofer is not in use.