Enjoy movies, music, and gaming with high-resolution, full-range hi-fi and cinematic sound. Polk's high-performance ES20 bookshelf speaker features a Dynamic Balance acoustic array, precision crossovers, and Power Port bass enhancing technology. Hi-Res Audio Certified and accessibly priced, the Signature Elite ES20 fulfills the Polk promise of great sound for all. The ES20's Hi-Res Audio Certified Terylene dome tweeter provides crystalline highs (40kHz+) ideal for enjoying high-resolution music from various services, along with the soundtracks of the latest ultra-HD movies. Polk's patented Power Port design offers greater surface area and smoother airflow for more output and less distortion compared to conventional ported speakers. When paired with the ES20's robust 6.5" woofer, this results in effortless bass you can feel. You'll experience a seamless, lifelike soundstage no matter where you're seated, thanks to the Signature Elite ES20's Dynamically Balanced acoustic array with phase-optimized, precision crossovers. The ES20 delivers spacious, clear, enveloping, and realistic sound reproduction from nearly any amplifier or receiver, whether 4 or 8 ohm, vintage audiophile, or the latest Dolby Atmos or DTS:X surround sound AVRs.

Driver complement: 1x 1" (2.54 cm) Terylene High-Res Dome Tweeter, 1x 6.5" (16.51 cm) Dynamic Balance Mica Reinforced Polypropylene Driver. Total frequency response: 44 Hz - 40,000 Hz. Sensitivity (1 watt @ 1 meter): 88 dB. Crossover frequency: 2,500 Hz. Impedance: Compatible with 4 and 8 ohm outputs. Recommended amplifier power per channel: 20 watts - 150 watts. Inputs: Pair of 5-way binding posts - gold plated.