The affordable Polk Audio Signa S4 soundbar and subwoofer is a fantastic way to experience immersive audio, but it can’t be upgraded with additional speakers, and you’ll have to do without Wi-Fi.

The new Signa S4 features seven drivers, including two upward-firing speakers, that deliver 3D surround sound. The low-profile design of the Signa S4 looks like it can blend in with any décor, and it ...

Forbes contributors publish independent expert analyses and insights. Technology journalist specializing in audio, computing and Apple Macs. Earlier this week I reviewed the superb Denon Home Sound ...