7 Driver 12THUNDER5K74 2850w Rms 4 Ohm Bass Woofer

This item is brand-new, factory sealed.

With its innovative design, the 5k7 Thunder offers less dynamic compression and high performance, this means power and endurance to play your favorite streak songs for a long period of time without the effect of power loss caused by coil heating.

* Innovative design with air cooled vented and screened magnet structure.
* Features lower dynamic compression which means less reduction or compression of an audio signal's dynamic range.
* General specifications.
* Frequency response - 50 to 2400 hz.
* Resonance frequency - 87,711 hz.
* Q mechanical (qms) - 5,567.
* Equivalent volume (vas) - 8,700 l.
* Compliance (cms) - 22,767u m / n.
* Mass diaphragm (mmd) - 148.252 g.
* Total mass (mms) - 155,046 g.
* Excursion of cone without distortion (x max) - +/- 10 mm.
* Cone effective area (sd) - 0.0510 sq.m.
* Q electric (qes) - 0.495.
* Resistance - 2.2 ohms / vdc.
* Nominal impedance - 4 ohms.
* Product bl - 15,819 tm.
* Maximum power (rms) - 2,850 w.
* Musical power - 5.700 w.
* Q total (qts) - 0.454.
* No (efficiency reference) - 1,034%.
* Sensitivity (@ 1w, 1m) -free-air - 92,163 db.
* Flow density in gap - 11,000 gauss.
* Nominal diameter - 12 inches.
* Ferrite material - barium.
* Ferrite dimensions - 2x220 x 25 mm.
* Coil diameter - 4 inches.
* Coil height - 28 mm.
* Coil wire material - ccaw.
* Section of the coil wire - round.
* Coil shape - * kapton.
* Gap height - 13 mm.
* Housing material - aluminum