It is *always* prudent to have spares to test out in this type of situation. Luckily, speakers are cheap as such.
Could you provide more specifics on how everything is connected? Cables used (HDMI, etc.), input/output ports, sound modes, etc.
I have had a Samsung smart TV for a while but the speakers are not great. I have an old stereo (from the 70's) so I thought to connect the audio out from the TV to the stereo (using an aux in on the receiver). I got some crackling and distortion when listening to video programming through the stereo. This did not happen through the TV speakers. I thought since the stereo was old, I would try replacing the amplifier and got a new Sony receiver (still using the same old speakers, bookshelf 50W speakers).
It is still happening. Is it possible it was the speakers, not the amplifier? It doesn't seem to happen all the time, just when background music swells. Happens with digital cable programming or from video streaming. Does not happen when using the tuner on the receiver. Do I have to buy new speakers now? What happens if it continues then?
Any advice would be appreciated