The newly reborn Monitor Series is classic Polk: a quality-built, affordable line of high performance loudspeakers for music and home theater. They are highly efficient, so they can be driven easily by unpretentious receivers, and they are voice matched for lifelike surround sound environments. The Monitor Series boasts a stylish contemporary look, modern Titanium faces, and bold stabilizer feet on the tower models. Built for speed, sound quality and value, the Monitor Series is a great introduction to high performance sound. The CS1 center speaker has been designed to be the perfect match for Monitor Series speakers in multi-channel systems.