Check the listing for details. Addictive Audio 15” Version 4 Dual 4ohm. Condition: Open box. Listed at 499.00 USD. Never used, mounted or connected. Comes with OEM box and packaging. 6 Layer UV Treated Ultra Compressed HI-RISE Foam Surround Double Stitched to Cone ​ TIGHTWEAVE© Woven Black Kevlar Cone Resin Pressed with Long Strand Kevlar Reinforced Paper Pulp Backing ​ Cast Aluminum Damped with Black Hammered Finish ​ 4 Gauge Chrome Plated Push Style Connectors ​ Dual 3 Layer LSD© Optimized NC3© Spider Assembly – NC3© spider composition is a proprietary performance enhanced blend of materials on all Addictive Audio speakers. ​ Integrated Tinsel Leads to Prevent Cone Slapping and/or Separation ​ Proprietary MAC© Motor Assembly for Maximum Cooling of the Coil and Motor by Forcing Air Through Strategically Placed Vents on Both the Coil Former and Motor. ​ 15″ ​ Break-in Period: 4-6 weeks ​ Dual 4ohm ​ Voice Coil Former Type: XTC© Black Anodized Aluminum with Our MAC© Cooling Technology ​ Voice Coil: 3″ 8 Layer Flat Wound Aluminum ​ Motor Weight: 640 Ounces ​ Continuous Power Handling: 1200 (conservatively rated) ​ Maximum Power Handling: 2400 ​