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T 250 4 OHM

Art. No. -
25 cm (10") woofer with red foam surround, coated cone, magnet vent and extended rear pole plate. High power handling and excellent value for money.
Technical Data
Sketch
Amplitude & Impedance Frequency
Rated power 90 Watt
Maximum power 130 Watt
Nominal impedance Z 4 Ohm
Frequency response 31 - 2000 Hz
Mean sound pressure level 88 dB (1 W/ 1m)
Excursion limit 20 mm
Resonance frequency fs 31 Hz
Magnetic induction 1 Tesla
Magnetic flux 660 µ Weber
Height of front pole-plate 6 mm
Voice coil diameter 3.5 cm
Height of winding 1.2 cm
Cutout diameter 23.6 cm
Net weight 1.5 kg
D.C. resistance Rdc 3.8 Ohm
Mechanical Q factor Qms 3.31
Electrical Q factor Qes 0.78
Total Q factor Qts 0.63
Equivalent volume Vas 159 l
Effective piston area Sd 353 cm2
Dynamically moved mass Mms 29 g
Force factor Bxl 5.2 T · m
Inductance of the voice coil L 0.52 mH

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