Understanding that no two rooms are exactly alike explains the AIMTM CINEMA depth of model range.The AIM7 Series features fully pivoting woofers and independently pivoting tweeters, allowing the entire speaker to be aimed toward the listener. These speakersprovide outstanding bass response, beautifully balanced midrange, and exquisitely accurate high end notes. Speakercraft was the first company to introduce a pivoting speaker. They patented the design and will defend their right to be the only company to offer their dealers this superior technology.The SpeakerCraft tradition of innovative design, combined with one of the most extensive engineering efforts in this industry"s history, has led to the creation of the patented AIM series of fully directional in-ceiling loudspeakers. Each model can be entirely pivoted towards the listener while remaining discretely recessed behind a flush-mounted grille.If listening position or tastes change, the speaker can be easily aimed in another direction with a simple push of the hand. SpeakerCraft innovation, excellence in engineering, and American made quality make the AIM series one of the most exceptional loudspeakers ever. Product Specifications:Efficiency: 91dB 1W/1m Power Recommendations: 5 - 150 Watts (Undistorted) Impedance: 8/6/4 Ohms Depending on Switch Settings Frequency Response: 35Hz - 20kHz 3dB Diameter x Depth: 9 7/8" x 5 1/8" (250.825mm x 130.175mm) Cut-out Diameter: 8 1/4" (209.55mm)Product Features: Pivoting and Rotating