Item model number: BD800.42OHM. "SPECIFICATIONS Model # BD800.42OHM Color : Black 800.4 : 4 x 100 WRMS | Total Power 14,4 @ 2 Ohms : 4 x 260 WRMS | Total Power 14,4 @ 4 Ohms : 2 x 520 WRMS | Total Power 12,6 @ 2 Ohms : 4 x 200 WRMS | Total Power 12,6 @ 4 Ohms : 2 x 400 WRMS | Efficiency @ 4 Ohms : 0.84 | Efficiency @ 2 Ohms : 0.78 | ".
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