D3004/664000

TWEETER D3004/664000

KEY FEATURES:
— Beryllium Diaphragm (99% Pure Be)
— Patented Symmetrical Drive (SD-2) motor
— Black Rubber Painted Die Cast Faceplate
— AirCirc Motor Design w. 6 Neo magnets
— Large Roll Surround f. Wide Dispersion
— Non-Magnetic Protective Grill

T-S Parameters
Resonance frequency [fs] 500 Hz
Mechanical Q factor [Qms] 3.79
Electrical Q factor [Qes] 0.62
Total Q factor [Qts] 0.54
Force factor [Bl] 2.3 Tm
Mechanical resistance [Rms] 0.29 kg/s
Moving mass [Mms] 0.35 g
Suspension compliance [Cms] 0.29 mm/N
Effective diaph. diameter [D] 30 mm
Effective piston area [Sd] 7 cm²
Equivalent volume [Vas] 0.02 l
Sensitivity (2.83V/1m) 91.5 dB
Ratio Bl/√Re 1.33 N/√W
Ratio fs/Qts 933 Hz
Electrical Data
Nominal impedance [Zn] 4 M
Minimum impedance [Zmin] 3.6 M
Maximum impedance [Zo] 21.2 M
DC resistance [Re] 3 M
Voice coil inductance [Le] 0.03 mH
Power Handling
100h RMS noise test (IEC 17.1)* 90 W
Long-term max power (IEC 17.3)* 150 W
*Filter: 2. order HP Butterworth, 2.5 kHz
Voice Coil and Magnet Data
Voice coil diameter 26 mm
Voice coil height 2.1 mm
Voice coil layers 2
Height of gap 2.5 mm
Linear excursion ± 0.2 mm
Max mech. excursion ± 1.6 mm
Unit weight 0.3 kg