Receivers keep growing more channels, but few people have developed an affinity for running more speakers and their tethers 'round the living room. Yamaha's doing its part with a series of products that integrate things together -- soundbars, HTIBs, and the like. On the lower end are the YHT-S350 and YHT-S400, pictured after the break. Both offer a receiver with an integrated subwoofer, though which your various devices can be connected and the output end of their HDMI cables tickled with bass. The two differ only in how they get their highs out, with the S350 including a pair of squat stereo speakers and the S400 offering a thre
