Studio II Delivers performance beyond what is typically associated with its price. Specifications Frequency response 28Hz-24 KHzSensitivity 87 dBImpedance 6 OhmsRecommended power 70w-500wWeight 50 lbHeight 17 "Width 10"Depth 14"Woofers - 8"1” soft dome tweeter Gershman Studio II are accredited with unsurpassed transparency, accuracy,neutrality and musicality. Most of the studio monitors days luck the full rangecapability of producing higher frequencies as well as the low frequencies. TheGershman Studio II are full range Studio Monitors that will provide the entirefrequency range, therefore, eliminating the need of using a subwoofer which cannotbe fully integrate with speakers. Made out of 1"thick HDF, curved which further contributes to better imaging and unbelievable, 3D soundstage.