X-15 D2 - Sundown Audio 15 Dual 2-Ohm 1250W RMS Subwoofer (Old V1 Model). Xmax = 30mm one-way by 70% BL.Recommended Port Area: 68 in^2. 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 "SUNDOWN AUDIO X-15 D2 15 DUAL 2 OHM 1250W RMS BASS SUBWOOFER (Old V1 Model) NEW" is in sale since Friday, November 8, 2019. 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.