BC25SG15-04

Transducer Size (Millimeters)25
DC Resistance2.93
Resonant Frequency1067.72
Half Space Sensitivity93.88
Rated Noise Power50
Test Spectrum Bandwidth1kHz - 20kHz

Transducer Size (Millimeters)25
DC Resistance2.93 Ω±5.0%
Resonant Frequency1067.72 Hz15%
Half Space Sensitivity @ 2.83V93.88 dB±1.01
Sensitivity @ 1W/1m90.5 dB±1.01
Rated Noise Power (IEC 268-5 18.1)50 W
Test Spectrum Bandwidth1kHz - 20kHz 12 dB/Oc
Effective Piston Area8.2 cm2
Moving Mass0.4 g
Motor Force Factor2.44 T•m
Voice Coil Inner Diameter25.4 mm
Gap Height3 mm
Maximum Linear Excursion0.6 mm
Ferrofluid TypeAPG027
Minimum Impedance3.72 Ω±7.5%
Voice Coil Inductance0.02 mH
Mechanical Q Factor2.39
Electrical Q Factor1.2
Total Q Factor0.8
Ratio1338 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance61.1 μm/N
Effective Cone Diameter3.24 cm
Motor Efficiency Factor2 (T•m2)/Ω
Voice Coil Former MaterialASV
Transducer Mass0.66 Kg
Equivalent Volume0.01 L

This BC family tweeter features a 4 ohm 25 mm voice coil, a damped fabric dome for smooth frequency response performance, and ferrofluid in the gap of the shielded ferrite magnet motor, providing enhanced cooling of the voice coil. The tweeter\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'s faceplate features recessed mounting holes, to hide mounting screws and minimize reflections.