Transducer Size (Millimeters)63.5
DC Resistance3.45
Resonant Frequency201.81
Half Space Sensitivity90.56
Rated Noise Power20
Test Spectrum Bandwidth200Hz -10kHz

Transducer Size (Millimeters)63.5
DC Resistance3.45 Ω±5.0%
Resonant Frequency201.81 Hz15%
Half Space Sensitivity @ 2.83V90.56 dB±1.01
Sensitivity @ 1W/1m88 dB±1.01
Rated Noise Power (IEC 268-5 18.1)20 W
Test Spectrum Bandwidth200Hz -10kHz 12 dB/Oc
Effective Piston Area22.1 cm2
Moving Mass1.2 g
Motor Force Factor2.44 T•m
Voice Coil Inner Diameter19.32 mm
Gap Height3 mm
Maximum Linear Excursion1 mm
Ferrofluid Type
Minimum Impedance4.41 Ω±7.5%
Voice Coil Inductance0.02 mH
Mechanical Q Factor3.39
Electrical Q Factor0.88
Total Q Factor0.7
Ratio288.3 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance518.7 μm/N
Effective Cone Diameter5.3 cm
Motor Efficiency Factor1.7 (T•m2)/Ω
Voice Coil Former MaterialASV
Transducer Mass0.32 Kg
Equivalent Volume0.38 L

This TC family full-range driver,with 2.5Inch 4Ohm paper cone and fabric surround, 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 column speaker and other high sensitivity full range applications in mind.