I had a similar problem with mine but I found out, by just messing around, that if I go into the audio settings while watching something(* button) and hit the reset while on bass boost or normal mode it brings back the bass. I have to do this every so often. Hope this helps.
I am having a similar issue! It played the test sound and then never another sound. I unpaired it and reset it and it refused to repair with the tv. I tried unplugging it a replugging it, nothing. It refuses to pair now. 😞
Tech support had me perform the exact same troubleshooting techniques I had done one my own with the exact same results. No sound, no pairing. Shame, when this sub was working it sounded great! Wtf roku?!
Got a call and they were going to send an e-mail with other things to try. Never got the e-mail. $250 down the drain. Should have purchased the service plan at Best Buy. Now I’ll be playing e-mail/text/phone tag with tech support. I love their soundbar, it runs flawlessly!