Transducer Size (Millimeters)63.5
DC Resistance3.22
Resonant Frequency143.42
Half Space Sensitivity86.36
Rated Noise Power20
Test Spectrum Bandwidth130Hz - 20kHz

Transducer Size (Millimeters)63.5
DC Resistance3.22 Ω±5.0%
Resonant Frequency143.42 Hz15%
Half Space Sensitivity @ 2.83V86.36 dB±1.01
Sensitivity @ 1W/1m83.3 dB±1.01
Rated Noise Power (IEC 268-5 18.1)20 W
Test Spectrum Bandwidth130Hz - 20kHz 12 dB/Oc
Effective Piston Area22.1 cm2
Moving Mass1.6 g
Motor Force Factor1.97 T•m
Voice Coil Inner Diameter19.32 mm
Gap Height3 mm
Maximum Linear Excursion1 mm
Ferrofluid Type
Minimum Impedance3.95 Ω±7.5%
Voice Coil Inductance0.02 mH
Mechanical Q Factor3.66
Electrical Q Factor1.22
Total Q Factor0.92
Ratio156.4 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance750.5 μm/N
Effective Cone Diameter5.3 cm
Motor Efficiency Factor1.2 (T•m2)/Ω
Voice Coil Former MaterialASV
Transducer Mass0.18 Kg
Equivalent Volume0.51 L

This TC family 2.5 inch 4 ohm full-range driver,with ferrite magnet, paper cone and rubber surround, and steel basket, is designed to be a cost-effective high performance full range driver. The cone utilizes Tymphany-patented PentaCut NRSC cone technology to help dampen and control cone resonances, optimizing the listening experience. The motor contains a copper cap to lower inductance and distortion. The product was designed with portable and other compact applications in mind.