Features: – In-Wall / In-Ceiling Speaker System – Built-in 70 Volt Transformer Tapping – High-Impedance, Line-Matching Transformer – 2-Way Full Range Stereo Sound – Detachable Magnetic Speaker Grill Cover – Used for Amplifier / PA Speaker Public Address Systems – Slim-Style, Low Profile Design – Mounts Flush on Walls or Ceilings – 1/2” High Compliance Dome Tweeter – Poly Mica Cone with High-Sensitivity Foam Edge – Cut-Out Size Template for Easy Installation – Environmentally Friendly ABS Construction – Used for Home, Office & Business Applications Technical Specs: – Power Output: 600 Watt MAX – Speaker Size: 8.0’’ -inches – 70V Transformer Tapping at 20W/15W/10W/5W/2.5W and 8OHM – Frequency Response: 55Hz-20kHz – Sensitivity: 91 dB – Magnet: 25 oz. – Cut-Out Diameter: 9.53” -inches – Mounting Depth: 4.17” -inches – Total Speaker Size (Diameter x Depth): 11.06″ x 4.33″ -inches