Tripower pro audio speaker with tripower 900 and tripower 15 to provide high-output and high fidelity of sound. Tripower 900 consists of 15-inch woofer, 10-inch midrange and 1.75-inch Beyma HF driver. Tripower 15 is consists of 15-inch woofer, 10-inch midrange and 2-inch titanium driver.