To tell if a home speaker will be loud enough for you, you should consider different characteristics. Some of these include:
Sensitivity: Sensitivity refers to the speaker's ability to convert power into volume. The higher the sensitivity rating, the louder the speaker will be.
Power handling: The power handling capacity of a speaker refers to the amount of power it can handle without being damaged. Generally speaking, the higher the power handling rating, the louder the speaker can be played without distortion.
Size: The size of a home speaker is a good factor to consider when deciding if it will be loud enough for you. If a speaker has a smaller driver, it will not be able to reach higher volume levels as easily as a larger speaker.