The curved cabinets usually only found on much more expensive speakers help eliminate vibrations and dissipate standing waves. This ensures no loss of performance superior bass and a more focused image. The 9.CS speakers can also be bi-wired separating the signal paths to the high and low frequencies and so offering a cleaner more precise sound. With a strong tight bass and huge amounts of top-end detail the Wharfedale Diamond 9.CS centre speaker will give you hours of listening pleasure.