DD Audio AT-28a

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.FeaturesCeramic DomeTreated Silk SurroundNeodymium MotorTuned Rear CavityLaser Etched Back PlateCompatible w/ Optional CX02 2-Way and TXOHP High Pass, Passive Crossovers 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