BC25SC55-04

Transducer Size (Millimeters)25
DC Resistance2.74
Resonant Frequency1401.51
Half Space Sensitivity93.34
Rated Noise Power100
Test Spectrum Bandwidth1.4kHz - 20kHz

Transducer Size (Millimeters)25
DC Resistance2.74 Ω±5.0%
Resonant Frequency1401.51 Hz15%
Half Space Sensitivity @ 2.83V93.34 dB±1.01
Sensitivity @ 1W/1m89.6 dB±1.01
Rated Noise Power (IEC 268-5 18.1)100 W
Test Spectrum Bandwidth1.4kHz - 20kHz 12 dB/Oc
Effective Piston Area7.1 cm2
Moving Mass0.4 g
Motor Force Factor2.18 T•m
Voice Coil Inner Diameter25.4 mm
Gap Height2 mm
Maximum Linear Excursion0 mm
Ferrofluid TypeAPG O27n
Minimum Impedance3.36 Ω±7.5%
Voice Coil Inductance0.02 mH
Mechanical Q Factor3.82
Electrical Q Factor1.83
Total Q Factor1.24
Ratio1134.82 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)767.12
Suspension Compliance35.8 μm/N
Effective Cone Diameter3 cm
Motor Efficiency Factor1.7 (T•m2)/Ω
Voice Coil Former MaterialASV
Transducer Mass0.08 Kg
Equivalent Volume0 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 neodymium magnet motor, providing enhanced cooling of the voice coil. The tweeter comes with a compact faceplate with recessed mounting holes, complete with sealing gasket which helps in reducing vibration between baffle and driver. A finned heat sink has been added for improved power handling.