To choose the best mini-subwoofer, you should consider the size that fits your space, any wattage needs or concerns you may have, and the performance of different speakers. Even though most are quite small, there are still a range of sizes available that you should match with your room. Depending on your sound system, you should consider the wattage of a mini-subwoofer to ensure there are no power issues in your setup. You should also look for reviews of different speakers to see what problems or advantages professionals and other consumers have found with various products.
A mini-subwoofer serves essentially the same purpose as a standard subwoofer, to create bass audio in a sound system, but at a smaller size. If you have a fairly small room in which you want to set up a system with multiple speakers, including a subwoofer, then a small speaker may work well for you. For large spaces, however, you should typically look for larger or standard speakers that can better fill the space with sound. If a mini-subwoofer is appropriate for your room, then you should consider the space you have for such a speaker and choose one that fits into your décor and sound system.
You should also consider any wattage requirements that a mini-subwoofer may have before choosing one. This is especially true if you are looking at a speaker that runs off of power supplied by the rest of your sound system. You want to make sure that any subwoofer you choose has a high enough wattage rating for your sound system, to ensure that you are unlikely to damage the speaker through high volume listening. A mini-subwoofer can also use a separate power cable for necessary wattage, and you should be sure that you have an available outlet for such a speaker.
One of the best ways to determine the audio quality of a mini-subwoofer is to find a store that allows you to listen to a sound system prior to purchasing it. Many retail stores include a sound room in which you can hear different setups and evaluate the audio quality produced by them. This is not always a practical consideration, however, so you should also look for reviews of different speaker systems. You can often find both professional and user reviews for a mini-subwoofer, which allows you to read about any problems others have had with a system and find recommendations or suggestions on setup based on the experiences of others.