Yes, there’s something kitschy about the 1990’s-style “xtreme!” name, but OnBeat Xtreme is otherwise a sophisticated evolution of JBL’s earlier iPod and iPhone audio systems, with enough extra polish and class to match its price tag. As a considerably larger and more powerful version of the previously-released OnBeat, OnBeat Xtreme uses the same X-like “weave” industrial design and rotating central dock as…
