RUBY SP12CEL 12" Speakers 8 ohm -This sale is for 2 speakers. Made in USA RUBY 8-ohm, 80-watt, 12-inch speaker. 1 3/4-inch voice coil, 30-oz. magnet, British cone. The American Celestion? Call it what you want, but it has good highs, and a tight bass with good definition. Excellent condition with no issues.