I need a soundbar 30" or under that doesn't have low volume dialog problems often seen in low end 2 channel systems & TV's.
The smallest 3 Channel system I could find is the Vizio 3.0-Channel Soundbar with Bluetooth and Deep Bass Technology - Black SB3830-C6M which shouldn't have the problem but it's 38".
At minimum it just needs to have Digital SPDIF Input for I/O.
No additional external system components (sub-woofer, satellite speakers, etc).
The soundbar will be mounted right below the TV using a TV soundbar mounting bracket. The TV is on a wall mount.