I'd like to fix it if possible, I'll keep the TDA7297 in mind for a future project. The few I see don't have a power input, rather a split + & - wire input, which would mean damaging an existing power cable.
If there is a way to fix the current amp, that'd be great. It works with my cabinet right now and I kinda have the front designed to fit it. (I had to cut a dowel down to act as a shaft extender to fit the volume knobs I have.
I'd simply like a way to cut down on the excess noise. I remember seeing somewhere online that a Resistor across the input should help it, but it's doesn't really do anything.