The Wharfedale Evo 4.S Walnut Surround Speaker (Pair) is a high-quality surround solution that is tonally balanced adding sonic brilliance to your set-up. Wharfedale have packed the Evo 4 range with technology that pushes the boundaries of standard hi-fi speakers. Pulling some of the best features from the best-selling Elysian range the Evo 4.S features AMT technology ensuring clear articulate highs pushing beyond the regular performance of a regular dome tweeter and thanks to the SLPP technology your low range is covered too making sure you get wide-ranging bass that will fill your room with colour and rich tones. With Evo 4.S backing up your main speakers youll be able to hear all the musical detail no matter where you sit.