Concerts, DJ sets, rehearsals, band performance, the demands that are placed on venue install - PA Speakers and Subwoofers are put through some serious stress. You might be concerned, but don't worry. . . let's just say that Eminence Pro Audio speakers work well under pressure! Their American Standard, DeltaPro, OmegaPro, KappaPro, and Impero models cover a wide range of sizes and wattages for speakers and subwoofers - both for building your own and for speaker replacement.