Transducer Size (Millimeters)88.9
DC Resistance3.03
Resonant Frequency174.64
Half Space Sensitivity90.27
Rated Noise Power25
Test Spectrum BandwidthFs-10000

Transducer Size (Millimeters) 88.9
DC Resistance 3.03 Ω±5.0%
Resonant Frequency 174.64 Hz15%
Half Space Sensitivity @ 2.83V90.27 dB±1.01
Sensitivity @ 1W/1m87.1 dB±1.01
Rated Noise Power (IEC 268-5 18.1)25 W
Test Spectrum Bandwidth Fs-10000 12 dB/Oc
Effective Piston Area 36.3 cm2
Moving Mass 2.1 g
Motor Force Factor 2.33 T•m
Voice Coil Inner Diameter 19.43 mm
Gap Height 4 mm
Maximum Linear Excursion 1.6 mm
Ferrofluid Type
Minimum Impedance 3.84 Ω±7.5%
Voice Coil Inductance 0.02 mH
Mechanical Q Factor 4.75
Electrical Q Factor 1.28
Total Q Factor 1.01
Ratio 173.09 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance 398.1 μm/N
Effective Cone Diameter 6.8 cm
Motor Efficiency Factor 1.8 (T•m2)/Ω
Voice Coil Former Material ASV
Transducer Mass 0.4 Kg
Equivalent Volume 0.74 L

This TC family 3.5 inch 4 ohm full-range driver,with ferrite magnet, paper cone, fabric 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 Pro column and other high sensitivity full range applications in mind.