Your 300 ICW 8 built-in loudspeakers have been designed to deliver the most faithful sound reproduction whether they are used for stereo music or home cinema. They are discreet loudspeakers which blend in perfectly with your walls and ceiling. Features 2-way speaker for custom install No tools required to install the product Loudspeaker developed and manufactured in France by Focal Delivered with ready-to-paint square and circular front grilles and painting protective mask Off-axis response control (Tweeter rotation and gain adjustment) This 2-way coaxial loudspeaker is composed of an 8 (21cm) woofer with a Flax cone and an aluminum/magnesium alloy inverted dome tweeter. The 8 woofer features Focals exclusive Flax technology which rivals with the famous W cones used in the Utopia Sopra and Electra lines. Rigid and very light these special cones produce a sound that is natural and extremely precise. The tweeter is adjustable and rotatable so the treble can be adjusted according to the rooms acoustics. The 300 ICW 8 in-wall/in-ceiling loudspeaker is the biggest model in the 300 Series line. Its high sensitivity makes it capable of producing a powerful sound of up to 90dB. Note: All Focal Custom Integration products come with free mounting brackets What's in the Box 300 ICW8 In-Ceiling/In-Wall Speaker Square and Circular front grilles Manual Specifications Drivers8" x flax mid-bass 1" Al/Mg inverted dome tweeter Sensitivity (2.83V/1m): 90dB Frequency response (+/-3dB): 48Hz - 28kHz Low frequency point (-6dB): 35Hz Nominal impedance: 8 Minimal impedance: 4.5 Recommended amplifier power: 25 - 150W Dimensions (H x W x D): 11 49/64" x 5" Cut-out diameter: 10 25/64" Depth behind: 4 51/64" Weight: 7.05 lbs.