<p>The AT-28a offers a soft rich sound with extraordinary detail and excellent off axis response. It features a lightweight, ultra rigid ceramic dome that has excellent damping and offers a breakup mode thousands of cycles above the audible range. A powerful neodymium motor and soft silk surround keep the moving parts linear during the excursion cycle resulting in near perfect pistonic motion and superb accuracy. A tuned rear cavity extends the tweeter’s low frequency response for a broader usable frequency bandwidth. Features Ceramic Dome Treated Silk Surround Neodymium Motor Tuned Rear Cavity Laser Etched Back Plate Compatible w/ Optional CX02 2-Way and TXOHP High Pass, Passive Crossovers</p>

TECHNICAL DATA

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: 47.9mm
Installation depth: 12.7mm