Also known as the iMT702, Altec Lansing's new inMotion MAX ($200) represents a step up in size and price from the company's prior iM600 system, preserving the integrated digital FM radio -- now augmented with an external antenna -- and using a set of two full-range drivers with two passive radiators. Featuring retro styling, inMotion MAX has metallic sides, a mostly black color scheme with gold-outlined speaker drivers, and a remote control that matches…