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