Product Detail Ultra-linear frequency response from 50 Hz to 21 kHz with individual frequency diagrams Built-in 150- and 75-Watt power amps with enormous power reserve Ultra high-resolution ferrofluid-cooled tweeter Long-throw 8 ¾" woofer with special polypropylene diaphragm and deformation-resistant aluminum die-cast chassis Adjustable to a wide range of acoustic conditions and subwoofer operation . The "Behringer B2031A Active 2-Way Reference Studio Monitor" is best product for you. We recommended Behringer B2031A Active 2-Way Reference Studio Monitor