Behringer Truth B2030A High-Resolution, Active 2-Way Reference Studio Monitor Speaker Ultra-linear frequency response from 50 Hz to 21 kHz with individual frequency diagrams Built-in 125-Watt Bi-amp module with enormous power reserve Ultra high-resolution ferrofluid-cooled tweeter Long-throw 6 " woofer with special polypropylene diaphragm and deformation-resistant aluminum die-cast chassis Controlled dispersion characteristics and extremely large "sweet spot" owing to the unique BEHRINGER wave guide technology