Tweeter SEAS 27TDC série PRESTIGE
[27TDC-6] Avis/Critiques 27TDC is a High Definition precoated fabric dome tweeter with a wide, soft polymer surround and a rear chamber. Sonotex precoated fabric diaphragm with high consistency and excellent stability against variations in air humidity.
Sonomax surround for low resonance, excellent mechanical linearity and stability without magnetic fluid damping.
The voice coil is wound on an aluminium voice coil former with adequate ventilating holes to eliminate noise from internal air flow.
Stiff and stable rear chamber with optimal acoustic damping allows the tweeter to be used with moderately low crossover frequencies. The chassis is precision moulded from glass fibre reinforced plastic, and its front design offers optimum radiation conditions.
The frequency responses above show measured free field sound pressure in 0, 30, and 60 degrees, mounted in a 0.6m by 0.8m baffle. Input 2.83 Vrms, microphone distance 0.5m, normalized to SPL 1m. The impedance is measured without baffle using a 2V sine signal.
Nominal Impedance 6 Ohms
Voice Coil Resistance 4.8 Ohms
Recommended Frequency Range 2000 - 25000 Hz
Voice Coil Inductance 0.05 mH
Short Term Power Handling * 150 W
Force Factor 3.5 N/A
Long Term Power Handling * 55 W
Free Air Resonance 550 Hz
Characteristic Sensitivity (2.83V, 1m) 90 dB
Moving Mass 0.30 g
Voice Coil Diameter 26 mm Effective
Piston Area 7.0 cm2
Voice Coil Height 1.5 mm
Magnetic Gap Flux Density 1.8 T
Air Gap Height 2.0 mm
Magnet Weight 0.25 kg
Linear Coil Travel (p-p) 0.5 mm
Total Weight 0.50 kg
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