3rd gen no clock bought Black Friday 2019
Mostly used as a speaker for watching streamed content on fire tablet, closely followed by playing radio, but also have found the voice command stuff useful too though haven't made the most of this I don't think
It's sounding tinny/vibrating loads/buzzing which is REALLY annoying.
And of course this is happening just a few months after the replacement period ended yet another case of planned obsolescence I think 
Anything I can do to fix?
I'm a which? Member now, wasn't at time of purchase and really disappointed to see it's a "don't buy" mainly due to sound quality - which I have to say until now I've found to be ok
It's still ok when it's only speech it's whenever there's music even just background music and I've even noticed it's only certain content where it's an issue which suggests to me it's not necessarily the hardware so what the hell is it?!
Which? Recommendations for smart speakers are well into £100's which I cannot afford
So if I do replace what would be best? Something smallish with voice command capability and compatible with fire tablet preferably.