First of all, let’s talk about cobalt magnets:

Advantages: The sound is natural and transparent; the mid and high frequencies are round and sweet (sweet without modification), and it feels like it has an ancient taste.

Disadvantages: The sound is scattered, and it feels like hairs, one by one, and it is a bit cold after being emitted, because it is listened with the excitation, the cobalt magnetic left channel, the excitation right channel , I wonder if it is due to comparison with excitation.

Second excitation:

Advantages: It has all the advantages of cobalt magnet. Since the sound is turned on at the rear, after the power is turned on, the two units sound at the same time. If you feel that the sound is out of sync, turn it off quickly. With the cobalt magnet off the left channel, needless to say, air, resolution and the like, you can get as many details as you want, and these details are naturally integrated with the music; when you listen to the human voice, you can feel the The sound of breathing and the sounds of lips and teeth are relaxed and natural, as if they are in your own ears. Some people say that the sound of excitation is noble and gorgeous. I hold a different opinion. I think it is natural.

Disadvantages: High sensitivity, loud hum, I don’t know if it’s because my power supply is not handled properly.