Unlike audio systems that surprise you by delivering more than you’d expect from their small bodies, Rukus XL is designed to wow you with its bulk. Measuring roughly 14” inches wide by 8” tall and 5” deep, it looks from the sides like an extruded triangle, complete with sturdy hard rubber edges and metal speaker grilles that imply a certain level of anti-shock ruggedization. Rukus XL’s grilles are notably gray rather than Soulra XL’s…