LAS VEGAS – Polk is giving Amazon’s Alexa a face lift—er, voice lift—with its Command Bar. The sound bar packs in an array of speakers for sound that nicely filled the large presentation space where we got our fist look, plus it includes a wireless subwoofer and, of course, integrated Alexa support. It also includes Polk Voice Adjust technology that makes it easier to hear dialog. The Command Bar packs in dual 4K HDMI 2.0b HDMI inputs, optical input for TV audio, HDMI (ARC) output, Wi-Fi and Bluetooth, a USB port for Fire TV, and a far field microphone array for Alexa voice control. You can pre-order one for US$299.95 starting April 1, 2018, in the United States and Canada, and in other countries later in the year.