Haut-parleur SEAS CD22RN4X
[CD22RN4X-8] Avis/Critiques Double treated, hard paper cone designed to be very stiff without losing the damping capability, together with a natural rubber surround produces a well behaved roll off characteristic and reduces potential resonance problems.
Bumped back plate in the magnet system, together with the very long and light weight copper clad aluminium voice coil, allow extreme coil excursion with low distortion.
Heavy copper ring below the T-shaped pole piece will reduce non linear and modulation distortion. Extremely stiff and stable injection moulded metal basket keeps the critical components in perfect alignment.
Large windows in the basket both above and below the spider reduce sound reflection, air flow noise and cavity resonance to a minimum.
The frequency responses above show measured free field sound pressure in 0, 30, and 60 degrees angle using a 12L closed box. Input 2.83 Vrms, microphone distance 0.5m, normalized to SPL 1m.The dotted line is a calculated response in infinite baffle based on the parameters given for this specific driver. The impedance is measured in free air without baffle using a 2V sine signal.
Nominal Impedance 8 Ohms
Voice Coil Resistance 6.1 Ohms
Recommended Frequency Range 20 - 2500 Hz
Voice Coil Inductance 3.47 mH
Short Term Power Handling * 250 W
Force Factor 11.4 N/A
Long Term Power Handling * 100 W
Free Air Resonance 20 Hz
Characteristic Sensitivity (2.83V, 1m) 87 dB
Moving Mass 41.6 g
Voice Coil Diameter 39 mm
Air Load Mass In IEC Baffl e 2.02 g
Voice Coil Height 20 mm
Suspension Compliance 1.5 mm/N
Air Gap Height 6 mm
Suspension Mechanical Resistance 1.67 Ns/m
Linear Coil Travel (p-p) 14 mm
Effective Piston Area 230 cm2
Maximum Coil Travel (p-p) 21 mm
VAS 108 Litres
Magnetic Gap Flux Density 0.9 T
QMS 3.28
Magnet Weight 0.64 kg
QES 0.26
Total Weight 2.20 kg
QTS 0.24
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