ToneWinner AD-8PA HI-end Pure Class A power Amplifier Fully Balanced Output

I bought it with the ToneWinner TD1 speaker. The manufacturer has arranged all the wires. Only with a complete set of electronic crossover speakers can the advantages of AD-8PA be used. At the beginning, my sound source was not properly set up, and the power amplifier did not burn well, resulting in a dull sound. Later, the reason was found, and after another 20 days of burning, the sound became better and better!