Mackie Studio Monitor, Black (C300z) Portable Precision Passive loudspeaker with 1.75" HF compression driver and 12" LF transducer HF compression driver mounted on a multi-celled aperture, with a constant directivity horn for room-wide 90 x 45 dispersion Precise reproduction of critical upper mid-range and high frequencies Tough, impact-resistant enclosure with sturdy handles, pole-mount, and integrated rigging points Designed for optimum performance with Mackie powered mixers and power amplifiers