Peerless by Tymphany TC7FD00-04 2-1/2″ Full Range Paper Cone Woofer 4 Ohm



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.

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Driver Size 2.5 in
DC Resistance 3.22 Ω ±5.0%
Resonant Frequency 143.42 Hz 15%
Half Space Sensitivity @ 2.83V 86.36 dB ±1.01
Sensitivity @ 1W/1m 83.3 dB ±1.01
Rated Noise Power (IEC 268-5 18.1) 20 W
Test Spectrum Bandwidth 130Hz – 20kHz 12 dB/Oct
Effective Piston Area 22.1 cm2
Moving Mass 1.6 g
Motor Force Factor 1.97 T•m
Voice Coil Inner Diameter 19.32 mm
Gap Height 3 mm
Maximum Linear Excursion 1 mm
Ferrofluid Type
Minimum Impedance 3.95 Ω ±7.5%
Voice Coil Inductance 0.02 mH
Mechanical Q Factor 3.66
Electrical Q Factor 1.22
Total Q Factor 0.92
Ratio 156.4 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance 750.5 μm/N
Effective Cone Diameter 5.3 cm
Motor Efficiency Factor 1.2 (T•m2)/Ω
Voice Coil Former Material ASV
Driver Mass 0.18 Kg
Equivalent Volume 0.51 L
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Platform: Tymphany
Driver Type: Full Range
Size: 2.5 in
Motor: Ferrite
Frame: Steel Basket
Impedance: 4 Ω
Diaphragm: Paper