I've always been partial to Bowers & Wilkins' Mini Theater-series speaker systems, especially the orb-shaped PV1 subwoofer that came with the higher-end setup. B&W seemed to have managed a near-perfect balance of style, technology, and performance with those systems.
This year's updated MT-50 and MT-60D packages feature upgraded M-1 satellite speakers, which are said to have a "longer-throw mid/bass driver" to deliver improvements in low-frequency response. The new M-1 satellites are rated to reach 55Hz, which is a lot better than the 90Hz low-end of its identically named predecessor.
Another addition is B&W's new PV1D subwoofer. The sub retains the dual-driver design of the PV1, but adds DSP (digital signal processing) and some tweaks to the drive units and amplifier. There's also an OLED display and touch-sensitive buttons on the side of the PV1D that allows users to customize equalization settings. The MT-50 bundle still includes B&W's more affordable ASW608 subwoofer.