Vizio Sb4251W-B4. The vizio support homepage provides the latest trending support topics and support videos, user manuals, product registration, along with tech specs and . Having the rear speakers make this sound bar the easy choice when trying to choose from two very similar and highly rated sound bars. Hey guys, if your vizio soundbar stopped powering on, this video may help you fix your soundbar. It has the combination of features, amazing performance, . When enabled (on), you can use a vizio tv remote control to turn on the sound bar. (using the tv volume up button) and control volume. Rated at up to 102 db with less than 1% total harmonic distortion, the s4251w is a true premium surround sound system that turns any room into the ultimate home .