Haut-parleur SEAS W18EX001
[E0017-08S W18EX001] Avis/Critiques Precision cast and surface treated magnesium cone coupled to a natural rubber surround showing no sign of midrange (edge) resonances. Large magnet system with bumped back plate makes room for extreme coil excursions.
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. Gold plated terminals mounted on a glass fibre reinforced plate to reduce contact resistance and improve reliability.
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 40 - 2500 Hz
Short Term Power Handling * 250 W
Long Term Power Handling * 100 W
Characteristic Sensitivity (2,83V, 1m) 88 dB
Voice Coil Diameter 39 mm
Voice Coil Height 16 mm
Air Gap Height 6 mm
Linear Coil Travel (p-p) 10 mm
Maximum Coil Travel (p-p) 19 mm
Magnetic Gap Flux Density 1.00 T
Magnet Weight 0.64 kg
Total Weight 2.15 kg
Voice Coil Resistance 6.1 Ohms
Voice Coil Inductance 0.65 mH
Force Factor 8.4 N/A
Free Air Resonance 34 Hz
Moving Mass 15.5 g
Air Load Mass In IEC Baffl e 0.82 g
Suspension Compliance 1.4 mm/N
Suspension Mechanical Resistance 1.94 Ns/m
Eff ective Piston Area 126 cm2
VAS 30 Litres
QMS 1.8
QES 0.30
QTS 0.26
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