Oops... Good call Robert. Upon looking at my receipt, the sub is an XXX18 from resonant engineering. I purchased it in April, 2003 from a store in Kent, WA called Discount Car Stereo.
I live in Seattle and want to sell my 18 inch XXX to somebody willing to pick it up. This was purchased in 2003. The enclosure (no amp included) was built by a previous employee (worked their 3 years) of Adire Audio with extensive knowledge of their product line. I am asking $380 for this...