Seismic Audio - SA-CPPA1 - Powered Compact Portable PA System - 4x5 Column Speaker, 12 Inch Subwoofer and Pole - Live Sound, Band DJ Model: SA-CPPA1 Contents: One Powered 4x5 Vertical Column Speaker, One Powered 12 Inch Subwoofer Cabinet, and One Subwoofer Pole Stand Application: Portable Compact PA/DJ System Active / Passive: Active (Powered) Nominal Impedance: 4x5 Column: 4 Ohms | 12" Subwoofer: 8 Ohms