DD Audio AT-28a PRO

Features 1.1” Natural Silk Fiber Dome Titanium Alloy Voice Coil Former Copper Clad Aluminum Ribbon Wire Voice Coil Neodymium Motor Dual Chamber Tuned Rear Cavity Copper Shorting Ring Design Laser Etched Back Plate Gold Plated set Screw Terminals Smooth Frequency Response From 3kHz – 25kHz Speaker Size (MM): 28 Watts RMS: 50 Watts Peak: 125 Impedance: S4 VCD (MM): 28 Frequency Response (Hz): 1500 - 25k Fs (Hz): 675 dBSPL: 91.2 Mounting Diameter (In): 1.6 Mounting Diameter (MM): 40.6 Mounting Depth (In): 0.67 Mounting Depth (MM): 17