Absolute best sonic performance at all price points •Designed using state-of-the-art computer modeling software to vastly improve magnetic field and suspension linearity for consistent sonic performance at any SPL for best-in-class performance Latest high-tech driver and tweeter material technology •Improved low frequency performance •Improved driver cone materials •Low diffraction woofer and tweeter design •Pivoting tweeter for improved frequency response in off-axis installations •Chambered tweeter design on all models The chambered tweeter design does the following •Lowers the resonance frequency of the tweeter •Allows for a lower crossover frequency to the woofer •Reduces the back pressure on the tweeter dome •Reduces the distortion of the tweeter near the crossover frequency Easier to install •Easier to access Roto-Lock® screws •Removed metal hang tabs •One-piece paintable grille with peel and stick scrim cloth for easier painting •Two piece toggle feet allows installation with double dry wall and thicker ceiling and wall materials Specifications:- Tweeter: 1" (25mm) ceramic dome, Ferrofluid-cooled, pivoting, in acoustic back chamber Woofer: 4 1/2" (114mm) carbon fibre / Rohacell® laminated cone with a rubber surround Frequency Response: 50Hz - 20kHz ±3dB Impedance: 6 ohms nominal - 4 ohms minimum Power Handling: 5 watts minimum - 100 watts maximum Sensitivity: 90dB SPL (2.83V/1 meter) Adjustments: Tweeter Level Switch -3dB Flat +3dB Grille: Perforated steel Dimensions (W x H x D): 5 9/16" x 8 7/8" x 3" (142mm x 225mm x 76mm) Cut-Out Dimensions (W x H): 4 5/8" x 8" (117mm x 203mm) Shipping Weight: 6 lbs (2.8kg) pair