Specification Value Driver Complement Dual 3Ó (75mm) woofers, dual 3Ó (75mm) midrange drivers, 1Ó (25mm) tweeter Crossover 2-_-Way at 400Hz and 2.2kHz LF Extension -3dB at 110Hz, -6dB at 100Hz, -10dB at 80Hz Sensitivity (2.83V at 1m, 2π) 89dB Impedance 8Ω Height 22-15/16Ó (582mm) Width 4-_Ó (107mm) Depth 4-_Ó (113mm) Weight (NET) 6.75lb (3.1kg) ...Introducing loudspeakers engineered to perform on walls, not just hang on them. As the left and right speakers in a music system, or perfectly matched to the Concerta C10 in a home theater system, the M10 delivers superb music reproduction and realistic, all encompassing movie sound to rooms of virtually any size. With appropriate hardware, itÕs possible to affix virtually any compact loudspeaker to a listening room wall, and manufacturers are free to promote any model of a certain size and weight as Òwall-mountable.Ó But very few audio manufacturers have the facilities and expertise needed to determine just how their on-wall systems will sound when actually placed on or near a wall. The performance of Revel Concertaª on-wall loudspeakers has been extensively evaluated in a variety of on-and near-wall installations through blind listening tests in the Revel Multichannel Listening Lab. Using proprietary 36-point anechoic measurements, Concerta on-wall speakers have been shown to deliver remarkably flat frequency response across an exceptionally wide listening area for clean, accurate sound in real-world listening rooms. None of the competing systems tested under identical conditions performed as well. Remarkably, Revel engineers could not identify a single competing on-wall system they considered suitable for on-wall use, based on either laboratory measurements or double-blind listening tests. With advanced drivers utilizing Micro Ceramic Composite (MCC) cones and domes, along with high-order crossovers, and housed in rigid aluminum enclosures styled to complement the look of LCD and plasma displays, Concerta on-wall systems will fill any room with brilliant, distortion-free sound from virtually any amplifier. Concerta speakers are voice-matched for use in any combination to build movie and music systems of uncommon realism. The series includes an innovative 3-channel LCR system mounted in a single enclosure, a highly capable center channel speaker, a choice of satellites and an impressive 250-watt powered subwoofer. The B120 sub can be connected directly to your system or operated wirelessly with an optional transmitter, for complete placement freedom. All Concerta on-wall woofer, midrange and tweeter diaphragms are constructed of Micro Ceramic Composite (MCC), a new material created by anodizing both sides of an aluminum core. Anodizing both sides of an aluminum core adds strength and stiffness ‰ÛÒ but very little weight ‰ÛÒ to a material already well suited for use in transducer diaphragms.