Although the differences between Charge and Charge 2 aren’t gigantic, JBL has succeeded in transforming what originally looked like a toy into something more sophisticated. The playful, two-toned color schemes of Charge have been replaced with slightly longer (7.3”) and thicker (3”) single-color chassis designs, now accented only by handsome silver JBL logos and side speakers. Charge 2 preserves the recessed perforated metal speaker…