With coaxial two-way drivers the 150-watt Bose Professional DesignMax DM8SE loudspeaker delivers powerful SPL suitable for foreground music - along with premium aesthetics that complement any commercial sound installation. The DM8SE features a two-way 8-inch woofer and a center-firing coaxial 1-inch compression driver delivering a 52 Hz - 20 kHz frequency range. The DM8SE is surface-mounted and locks onto a hidden QuickHold U-bracket for fast secure installation.