Natural, uncoloured sound with excellent response and high output handling is the inspiration behind our Evolution ProLine 2000 series. Built with the finest quality 13-ply Finnish Birch, our speaker cabinets radiate the natural tones created by the technology that precedes them. Transparency, balance and natural warmth characterize the EBS speaker sound. Frequency Response 70 - 18k Hz, Sensitivity 103 dB, Power Rating 800 W RMS, Impedance 4 ohms.