What is good sound?
Good sound is not completely straightforward, there are many things to consider when looking into this area, but here we have simply divided it into four main parts. Speaker output, frequency range, Bluetooth version and impedance. Below you can read a more detailed description of each part.
Speaker output power
When choosing Bluetooth speakers, the output power is the most important specification. Under normal circumstances, the higher the power, the louder the sound. And the signal to noise ratio must reach 80 dB. Usually, the power of Bluetooth speakers on the market is basically 10-15W, which is enough for our daily use.
Frequency range
The vibration frequency range that the human ear can perceive is about 20-20000 Hz. If the speaker cannot reproduce the entire audible spectrum, there will be sounds that we would miss. Therefore, the larger the frequency range covered by the Bluetooth speaker, the clearer we will perceive the sound.
Bluetooth version
The latest Bluetooth version is 5.3. Although the new version of Bluetooth is compatible with the old version, the new Bluetooth features under version 4.0 will be missing. Therefore, when you buy Bluetooth speakers, the Bluetooth version should be above 4.0.
Impedance
Resistance in ohms deals with the passage of electric current and is related to power. The higher the resistance, the less power the speaker puts out. To keep things simple, just remember that the lower the impedance, the better the sound quality.