my <1year old fridge is LOTS quieter than the 20 year old GE it replaced...and has cut my electric bill by about 50kwh per month while being about 10% more capacity.
IF your current fridge is more than about 10 years old, and IF the sound deadening ideas don't cut it, you may consider a new box.
On my brothers boat, he sometimes will put a small (2kw) generator on the upper deck. Adding a 2thick of those large foam floor tiles made it work and cut genset noise drastically. Tiles available at any 'home despot' type store.
IF your current fridge is more than about 10 years old, and IF the sound deadening ideas don't cut it, you may consider a new box.
On my brothers boat, he sometimes will put a small (2kw) generator on the upper deck. Adding a 2thick of those large foam floor tiles made it work and cut genset noise drastically. Tiles available at any 'home despot' type store.