JL Audio 12" Free Air Subwoofer 12IB4............750rb


Features:

* Nominal Diameter: 12inches (250 mm)
* Continuous Power Handling: 125 Watts
* Voice Coil: 2.0" diameter, 2-layer, Kapton former
* Available Configurations: 8 ohm (Single Voice Coil)
* Fs (free-air resonance): 40.5 Hz
* Qts (total speaker "Q"): 0.634
* Qes (electrical "Q"): 0.673
* Qms (mechanical "Q"): 10.967
* Vas (equivalent compliance): 3.97 112.4
* Xmax (linear excursion one-way): 0.288 7.3
* Effi ciency (1W/1m)*: 92.2 dB
* Sd (effective piston surface area): 78.5 0.0506
* Re (DC resistance): 6.07
* Znom (nominal impedance): 8
* Pt (continuous thermal power handling): 125 Watts


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081282357888