If you want to use an entry-level product, the most important thing is the power amplifier. For example, JBL and British Martin all start at 100,000 yuan. Of course, second-hand ones, over 30,000 yuan, go to a real training room.

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The effect of the power amplifier can move your heart (it is a shock wave, which penetrates the heart), air wave,

But ordinary people cannot do this every day (your family and neighbors cannot let you do this every day) Tremolo),

Don’t look for problems from the sound source, look for matching speakers based on the quality of the power amplifier, such as speakers below five/ten inches.

In fact, I found that this has an impact and the money is bottomless,

It is not as good as a wireless Bluetooth brand, such as Samsung's GEAR Incox 2018, which comes with offline music and 4G,

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The same audio source, transferred from the mobile phone, paired with Bluetooth, and played with the built-in chip, have completely different effects and are lossy. So it's not a sound source problem, it's a signal conversion problem.

Because of this, the power of expensive speakers is not as good as that of a small Bluetooth speaker.