Niles CM8PR Ceiling-Mount L/C/R Performance Loudspeaker 8in 2-Way Used condition but fully functional. No grill and no fixings. Just as you see it in the photos. Integrated Woofer/baffle Design Delivers Greater Low Frequency Response By Employing An 8" Woofer Where Competitive Models Of The Same Outer Size Use Smaller Woofers. Glass Fiber Woofer Cone Is Extremely Rigid To Reduce Breakup, Lower Distortion And Provide Enhanced Bass Response Butyl Rubber Surround Damps Resonance And Provides Exceptional Durability 1" Fluid-cooled Teteron Dome Tweeter Offers Enhanced Dispersion And Silkysmooth High Frequency Response. Proprietary Bridge-mounted Tweeter Pivot Mechanism Focuses The High Frequency Sound In Any Direction Up To 20° Without Diffraction. Specifications Frequency Response: 48Hz To 21kHz +/-3dB. Impedance: 8 Ohm Nominal; 6 Ohm Minimum Recommended Amplifier Power: 10 To 140 Watts Frame Dimensions: 11 3/8" (28.9 Cm) Hole Cutout Dimensions: 9 3/4" (24.8 Cm) Depth Behind Ceiling (5/8" Drywall): 4 1/8" (10.5 Cm) Shipping Weight: 6.4 Lbs (2.9 Kg)