Professional Loudspeakers
Your Global Driver Solutions Partner
Celestion International Ltd, Claydon Business Park, Great Blakenham, Ipswich IP6 ONL, UK
+44 (0)1473 835300 [email protected] www.celestionprofessional.com
Celestion adopts a progressive policy and reserve the right to alter drive unit specifications and/or appearance without prior notice 08/05
CDX20-3000
General Specifications
Power rating (AES, W rms) ........................................... 75
Nominal impedance (
Ω
) ................................................. 8
Sensitivity (dB) ............................................................ 107
Frequency range (Hz) ...................................... 500-18,000
Recommended min. crossover (12db/oct, Hz)................800
Voice coil diameter (mm/in) ...................................76.2/3.0
Magnet type.....................................................Neodymium
Diaphragm material ...............................................Titanium
Surround material ................................................Polyimide
Mounting Information
Width (mm/in) ..................................................... 125/5.0
Depth (mm/in) ....................................................... 94/3.7
Unit weight (kg/lb)...................................................2.0/4.4
Fitting Flange ................(4 x M6 holes on 102mm/4in PCD)
Throat exit (mm/in)................................................50.8/2.0
Frequency Response and Impedance Curves
Measured - Constant Directivity Horn 60º x 40º radiation pattern
60
80
100
120
20
40
60
80
Preliminary Data
• 2" exit, neodymium magnet, 3" voice coil compression driver
provides 75Wrms power handling and 107dB sensitivity
• New, patent-applied-for phase plug design methodology
suppresses cavity resonances at higher frequencies
• Titanium diaphragm, deep drawn to increase stiffness and
reduce distortion
• Lower compression ratio reduces air non-linearity and allows for
higher maximum SPL
• Rolled polyimide surround improves stiffness control, further
lowering distortion
• A curved coherent wavefront, optimised for horn loading
