Amazon.com: Eminence Professional Series Delta Pro-18A 18" Pro Audio Subwoofer Speaker, 500 Watts at 8 Ohms : Musical Instruments
Amazon.com: Eminence Professional Series Kilomax Pro 18A A-B Box, Black, 18 Inch (KILOMAXPRO18A) : Musical Instruments
Eminence Delta Pro 18A Speakers - Eminence Delta Pro 18A 18" speaker. The Eminence Delta Pro 18A is a 18" 8 ohm speaker. Speaker is rated at 500 watts RMS.
Eminence Pro Audio Speaker Drivers & Horns for sale | eBay