BC20SC15-04

Transducer Size (Millimeters)19
DC Resistance3.11
Resonant Frequency1579.55
Half Space Sensitivity90.18
Rated Noise Power80
Test Spectrum Bandwidth1.5kHz - 20kHz

Transducer Size (Millimeters) 19
DC Resistance 3.11 Ω±5.0%
Resonant Frequency 1579.55 Hz15%
Half Space Sensitivity @ 2.83V90.18 dB±1.01
Sensitivity @ 1W/1m86.7 dB±1.01
Rated Noise Power (IEC 268-5 18.1)80 W
Test Spectrum Bandwidth 1.5kHz - 20kHz 12 dB/Oc
Effective Piston Area 4.5 cm2
Moving Mass 0.2 g
Motor Force Factor 1.13 T•m
Voice Coil Inner Diameter 20.4 mm
Gap Height 2 mm
Maximum Linear Excursion 0.2 mm
Ferrofluid Type APG027N
Minimum Impedance 3.56 Ω±7.5%
Voice Coil Inductance 0.02 mH
Mechanical Q Factor 4.8
Electrical Q Factor 4.99
Total Q Factor 2.45
Ratio 645.77 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)316.44
Suspension Compliance 49.4 μm/N
Effective Cone Diameter 2.4 cm
Motor Efficiency Factor 0.4 (T•m2)/Ω
Voice Coil Former Material ASV
Transducer Mass 0.1 Kg
Equivalent Volume 0 L

The BC family of tweeters features a damped fabric dome for smooth frequency response performance and ferrofluid in the gap of the NdFeB motor, providing enhanced cooling of the voice coil. BC tweeters come with a compact faceplate with recessed mounting holes, complete with a sealing gasket which helps reduce vibration between baffle and driver.