Transducer Size (Millimeters)25
DC Resistance2.93
Resonant Frequency640.02
Half Space Sensitivity93.02
Rated Noise Power100
Test Spectrum Bandwidth2.5KHz-20KHz

Transducer Size (Millimeters)25
DC Resistance2.93 Ω±5.0%
Resonant Frequency640.02 Hz15%
Half Space Sensitivity @ 2.83V93.02 dB±1.01
Sensitivity @ 1W/1m89.8 dB±1.01
Rated Noise Power (IEC 268-5 18.1)100 W
Test Spectrum Bandwidth2.5KHz-20KHz 12 dB/Oc
Effective Piston Area8.2 cm2
Moving Mass0.4 g
Motor Force Factor2.41 T•m
Voice Coil Inner Diameter25.76 mm
Gap Height2 mm
Maximum Linear Excursion0.1 mm
Ferrofluid TypeAPGS11N
Minimum Impedance3.78 Ω±7.5%
Voice Coil Inductance0.02 mH
Mechanical Q Factor2.46
Electrical Q Factor0.74
Total Q Factor0.57
Ratio1128.79 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance170.2 μm/N
Effective Cone Diameter3.23 cm
Motor Efficiency Factor2 (T•m2)/Ω
Voice Coil Former MaterialASV
Transducer Mass0.5 Kg
Equivalent Volume0.02 L

This DX family tweeter features a 4 ohm 25 mm ferrofluid-cooled voice coil, a damped silk diaphragm with large surround roll to produce a low resonant frequency, and a ferrite magnet motor which adds heat sinking for power handling capacity. The faceplate features recessed mounting holes to minimize reflections.