"Sound Bar Remote" App and HDMI ARC Take it From a 4 to a 5
At less than $200, the SR-B20A performs beautifully in our 12 X 30 not-so-great room. The sound quality for TV dialog, movie sound track, and music is excellent. It's two sub-woofers provide good bass, and it has a sub-woofer output jack for those who want to shake the house.
The included remote is inconvenient in that you get no feed back when you adjust the volume or other settings, and the indicator lights on the soundbar face the ceiling, making them impossible to see when seated.
Fortunately, Yamaha has a free "Sound Bar Remote" App, which uses Bluetooth to connect to the soundbar, eliminating both problems - you can select and view all settings from your smart phone, and never have to use the included remote again. Yamaha's other App, "Sound Bar Controller" only works on their wifi-enabled soundbars; the SR-B20A doesn't have or need wifi.
Our older plasma TV does not have ARC HDMI, so we had to use the optical output from TV to sound bar; it still delivers great sound, but lacks the convenience of controlling the soundbar from the TV's remote. An optical cable is included, but you need to supply an ARC HDMI cable if your TV has an ARC HDMI port. If your TV has no ARC HDMI, no HDMI cable is needed due to the optical cable carrying the audio signal from the TV to the soundbar. Without an ARC HDMI port, an HDMI cable would not receive any signal from the TV.