Although we've seen other companies attempt the same basic concept as JBL's new Voyager ($250), the fact that the vaunted speaker maker has taken on the challenge of developing an attractive detachable two-piece speaker system is noteworthy. Voyager's base is a partially transparent circular housing with a 3" rear-firing subwoofer in the back and ports nestled on the bottom; you can detach a fully wireless puck-shaped core with twin 1.5" drivers inside,…