Here is Polk’s latest for the latest iPods…and expect it next month for $499.

The I-Sonic Entertainment System 2 (ES2) allows listeners to buy songs heard on HD Radio broadcasts using Apple’s iTunes Tagging technology.

Four speakers deliver 360 degrees of big-life-like stereo and the PowerPort® bass venting technology acts much bigger than it really is. It has a second generation HD Radio tuner with full multicasting, an advanced acoustical system, Digital Signal Processing, and new HD Radio tuner technology. Connect to a TV via S-Video and composite video outputs.

The I-Sonic ES2 accepts all iPod models with dock connectors in its top-mounted dock hidden beneath a sliding door.