New Primus speakers feature our patented Plus One polypropylene woofers which feature more radiating cone area for increased output and edge driven tweeters for better high frequency dispersion. Speakers are super clear at the top with vocals, horns and strings and deliver big bass with plenty of slam. Long story short superior sound top to bottom. True 4 ohm architecture gives the amplifier room to reach peak power for increased depth and detail. There are seven Primus models for easy installation in any vehicle, whether its a truck, compact or limo. In addition to passing demanding reliability and environmental testing, all speakers are individually voiced by some of the world^s best transducer engineers to authenticate the Infinity sound. Its not a coincidence that Infinity is one of the worlds top selling car audio speaker brands.