W 200 S - 4 ohm is a 20 cm (8") HiFi woofer with strong drive, extended rear pole plate and 35 mm voice-coil for high power handling. Built with elastic rubber surround and coated paper cone.
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|Nominal impedance Z||4ohm|
|Outside diameter||232 mm|
|Maximum power||115 W|
|Mean sound pressure level||88dB|
|Coil diameter||35 mm|
|Resonance frequency fs||29 Hz|
|Electrical Q factor Qes||0.38|
|Mechanical Q factor Qms||3.99|
|Total Q factor Qts||0.35|
|Dynamically moved mass Mms||28 gr|
|Equivalent volume Vas||65 L|
|Frequency response||fu–6000 Hz|
|Le Inductance bobine (Le)||1.5 mH|
|DC resistance. (Re)||3.4 Ohms|
|Effective piston area Sd||214 cm²|
|Linear Excursion (Xmax)||+/−10 mm|
|Force factor (BxL)||7.7 Tm|
|Magnetic induction||1.1 T|
|Magnetic flux||600 µWb|
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