DD Audio AT-28a

Features:

Dome tweeter with Ceramic diaphragm!
Treated silk surround
Neodymium motor
Tuned rear cavity
Laser engraved rear panel
Compatible with optional 2-way passive CX02 and TXOHP high pass
Crossovers

Data:
Speaker size (MM): 28
Watt RMS: 50
Watt peak power: 125
Impedance: 4 ohm
voice coil diameter (mm): 28
frequency response (Hz): 3k - 25k
Fs (Hz): 1300 Hz
SPL: 90dB

Dimensions:
Outer diameter: 57.7mm
Mounting diameter: 47.9 mm
Installation depth: 12.7 mm