DAS ACTION-525 - Passive 2-Way Dual 15-Inch Loudspeaker (Black)ACTION 525 is a passive system that incorporates two 15 speakers that deliver a greater SPL than the simple 15 plus enhanced bass for events that require both powerful sound and simple adjustment. As part of a company culture, all DAS systems are developed under a single philosophy: to deliver the highest possible quality in terms of both materials and overall system design. In the ACTION 500 series they use the same birch plywood as their touring