Designed in the USA, the FR Series provides full range for audiophiles seeking maximum power with unparalleled performance and sophistication. Find the most powerful midranges, tweeters, drivers, coaxial, or any other speaker and plug them to the full range Series. Create an Elaborate build. Compete. Win. These amplifiers are the highest Rated amplifiers today's technology can manufacture. Only recommended for serious installers, competitors, and people who want to be heard by anyone within a Mile radius.