Haut-parleur SEAS W18NX001
[W18NX001-8] Avis/Critiques An adaptive rubber surround provides an ideal match to the cone over the total frequency range. A paper cone with a unique Nextel coating ensures smooth frequency response and low distortion.
A large magnet system with bumped back plate, together with a very long and light weight CCAW voice coil allow extreme coil excursion with low distortion and excellent transient response.
Heavy copper rings mounted above and below the T-shaped pole piece reduce non linear and modulation distortion and increase overload margin. 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 reflexion, 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
Recommended Frequency Range 30 - 3000 Hz
Short Term Power Handling * 250 W
Long Term Power Handling * 80 W
Characteristic Sensitivity (2,83V, 1m) 87.5 dB
Voice Coil Diameter 39 mm
Voice Coil Height 20 mm
Air Gap Height 6 mm
Linear Coil Travel (p-p) 14 mm
Maximum Coil Travel (p-p) 22 mm
Magnetic Gap Flux Density 1.0 T
Magnet Weight 0.64 kg
Total Weight 2.15 kg
Voice Coil Resistance 6.3 Ohms
Voice Coil Inductance 0.43 mH
Force Factor 7.0 N/A
Free Air Resonance 40 Hz
Moving Mass 13.7 g
Air Load Mass In IEC Baffl e 0.86 g
Suspension Compliance 1.2 mm/N
Suspension Mechanical Resistance 1.77 Ns/m
Effective Piston Area 126 cm2
VAS 24 Litres
QMS 2.08
QES 0.41
QTS 0.34
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