LAS VEGAS--When CNET reviewed Polk's I-Sonic ES2 almost four years (!) ago, we knocked it for lacking then-cutting-edge features like a CD/DVD player, satellite radio, USB port, and network audio functionality.
Fast-forward to 2012 and the story is the same, but the details have changed, with Polk's recently announced I-Sonic ES3 lacking many of the cutting-edge features we've seen on competing iPhone speakers, such as AirPlay and Bluetooth. Even the USB-looking port on the back, but close inspection reveals it's for service-use only.
Still, the I-Sonic's real claim-to-fame was always performance, not features, which is … Read more