Sound suddenly quiet and flat through HT-SF150 2.0 soundbar

[owenston]

Having some trouble with my soundbar, the volume has gone really flat and dull. Tried resetting it, tv settings, swapping hdmi cables etc to no avail. Currently using this with the 2020 49 inch KD49X7052PBU 

[HannahEd01]

Hi owenston, what's the current software version of your TV?

[owenston]

v8.909-1000-2.700-0002

[HannahEd01]

Did you try resetting the TV?