I recently inherited a 12" Alpine Type R car subwoofer speaker from a friend (without the box enclosure). Seeing as how I have no desire to install it into my car (I find car subs to be obnoxious), can I make a decent sub out of it? Also, is there a service that will make a sub for me if I send them the Alpine sub? Just as background, I'm already running a Velodyne CHT-8 and the Alpine sub would be my second.