MB824 - Memphis 8 300 Watts RMS Dual 4-Ohm 2-Ohm Bass Subwoofer. Selectable impedance design 2 or 4 (Patent pending).Ultra-light Aluminum voice coil for increased sensitivity and more. Folded surround for max excursion without sacrificing surface area. Reinforced double stitched rubber surround. 2 4 layer aluminum Dual Impedance voice coil 10/12/15, 1.5 on 8. DVVC Direct Vented Voice Coil Cooling. You will be issued a Return Authorization Number. In order to maintain an inventory of 100%, Brand New, A-Stock, untouched products, all sales are final. We ask that you please be sure you are ordering the correct product. The item "MEMPHIS AUDIO MB824 8 SUB 600W MAX 4-OHM 2-OHM SUBWOOFER BASS SPEAKER NEW" is in sale since Thursday, October 8, 2020. This item is in the category "Consumer Electronics\Vehicle Electronics & GPS\Car Audio\Car Subwoofers". The seller is "woofersetc_outlet" and is located in Los Angeles, California. This item can be shipped worldwide.