Sound quality: Vizio's SB3221n-J6 has Good overall sound quality - this model reproduces music and dialog reasonably well despite the obvious shortcomings in its sound. In the Movie sound mode bass has good impact and goes fairly deep, but is a bit prominent and boomy. Midrange is fairly even, but is somewhat grainy and hazy. Treble is fairly extended but is somewhat smeared. Does a decent job of recovering room ambience and is somewhat congested. With stereo program material two channel sound field extends somewhat above and only a bit beyond the sides of the speaker array, but lacks depth. Except for the Virtual X sound mode the various sound modes had no significant difference on the sound quality. The Virtual X mode makes the sound louder, more echoey, extends it more up toward the ceiling, and makes the sound field somewhat wider. With multi-channel material the sound field is noticeably wider and taller with than with stereo program material. Except for the Virtual X sound mode the various sound modes had no significant difference on the sound quality. The Virtual X mode makes the sound louder, more echoey, extends it more up toward the ceiling, and makes the sound field somewhat wider. There was no significant difference in sound quality between the optical, aux, USB and Bluetooth inputs. The system can provide satisfying volume in a medium sized room.
TV ease of use: Very good overall.
Features ease of use: Acceptable overall.