Some amps weight over 100 lbs., so they should be placed on the lower shelving of a durable cabinet. For the top shelves, they can handle weight up to 250 lbs., so they can be used in mounting flat screen TVs or other types of heavier equipment.
Your home stereo system may weigh less. If so, then you can get a more affordable cabinet with a lesser weight capacity.
Home stereo systems are expensive audio equipment, so they must be given the best protection possible. Fortunately, you have myriads of stereo storage cabinet options!