Electro-Voice EVF-2151D 2x15-Inch Passive Subwoofer | Color: BlackThe Electro Voice EVF 2151D is a high power, front loaded bass element that can be used in a variety of applications where high quality sound reinforcement is required in a lightweight package. The EVF 2151D utilizes two DVX3159A 15 woofers, developed using FEA optimization for motor, suspension, and electrical design to ensure very low distortion and maximum intelligibility at high SPL. The EVF 2151Ds features make it a professional loudspeaker for