Enjoy movies, music and gaming with high-resolution, room-filling, cinematic sound and effortless bass. Polk’s high-performance ES20 bookshelf loudspeaker is Hi-Res Audio Certified, features a Dynamically Balanced acoustic array, precision crossovers and Power Port bass-enhancing technology.

• 6.5" Dynamic Balance® polypropylene woofers
• 1" Terylene Dome tweeters
• Power Port® for clean bass
• Low-resonance cabinets
• Hi-Res Audio certified

Key Technologies

• Quantity IncludedPair
• Height14.8" (37.59 cm)
• Width8.5" (21.59 cm)
• Depth13.8" (35.05 cm)
• Weight17 lbs (7.71 kg)
• Driver Complement• (1) 1" (2.54 cm) d (Round) Terylene High-Res Dome Tweeter

  • (1) 6.5" (16.51 cm) d (Round) Dynamic Balance Mica Reinforced Polypropylene Driver

• Driver Enclosure TypePowerPort Bass Vented
• Total Frequency Response41 Hz → 40 kHz
• Sensitivity (2.83V @1m)86 dB
• Recommended Amplifier Power Per Channel20 watts → 125 watts
• Crossover Frequency2.4 kHz
• ImpedanceCompatible with 4 and 8 ohm outputs
• Inputs(1) Pair of 5-way Binding Posts - Gold Plated