Polk Audio

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  • Exclusive Speaker Technologies
    • » Four-speaker I-Sonic Technology
    • » Patented PowerPort® Bass Technology
    • » Advanced Digital Signal Processing
  • Hear More Radio Stations
    • » HD Radio® with multicasting
    • » Conventional AM/FM Radio
    • » SIRIUS Satellite Radio
  • I-Sonic ES Special Features
    • » Overview of the original I-Sonic ES
    • » Built-in DVD/CD Player with TV Outputs
    • » Dual-Alarm Clock Radio
    • » iPod and MP3 Player Connectivity
    • » XM Satellite Radio
  • I-Sonic ES2 Special Features
    • » Introducing the new I-Sonic ES2
    • » iTunes Tagging; tag and download HD Radio songs
    • » Integrated iPod Dock with universal adapter
    • » iPod Video with S-Video + Composite Outputs

Four-speaker I-Sonic Technology

Polk's engineering breakthrough changes the rules for small system performance. Conventional table-top systems "beam" the sound straight towards the listener, even those with two speakers. At best, these designs can create a stereo soundfield for someone seated directly facing the unit. It's not at all satisfying for any other listeners in the room.

Only Polk's exclusive, patent-pending I-Sonic design lets everyone in the room enjoy the rich sound. The I-Sonic stereo soundfield is projected all around. No matter where you are in the room, you'll get the full I-Sonic experience with either the I-Sonic ES or the I-Sonic ES2.