The Revel Performa M126Be is a powerful and elegant 2-way, 6.5-inch bookshelf loudspeaker that sets a new world standard in performance. Using the award-winning Performa3 M106 as the starting point, virtually every component was re-engineered to extract the finest details, the highest level of performance, and the most emotion possible. Featuring an all-new Beryllium tweeter, the M126Be delivers unparalleled detail and accuracy with an expansive and cohesive soundstage. General Specifications High Frequency Driver Components 1" Beryllium dome with acoustic lens waveguide Low-Frequency Driver Components 6.5" Deep Ceramic Composite (DCC) Aluminum Cone with cast frame Frequency Response (-6dB) 46Hz - 40kHz Low-frequency extension 40 Hz (-10dB); 46 Hz (-6dB); 53 Hz (-3dB) Recommended Amplifier Power 50 - 150 Watts Crossover Frequencies 1.7kHz Nominal Impedance 8 Ohms Sensitivity 86dB (2.83V @1M) Finishes High-gloss Black, White, Walnut and Metallic Silver Dimensions (H X W X D) 15.2"x 8.3" x 10.3" (386 x 211 x 262mm) Net Weight 22 lbs / 9.97kg