A:Answer Yes...I have only the playbar (well only the playbar hooked to my tv, i have several other sonos components in the rest of my house) and it works amazingly better than the standard speakers on my tv (and I have a huge expensive tv). The playbar is used by itself...and bonus, the app allows you to mute louder sounds at night with the nighttime feature so if you're awake and the kid is asleep and you don't want to wake her, you can still listen to the voices and sounds at a similar volume without having your finger on the "trigger" to lower/raise the volume all the time. I can't wait to add the sub myself, but right now I only have playbar and I love it!