1. Sound quality
There are some methods for evaluating speakers to measure headphones, but the sense of hearing of headphones is different from speakers. The sound waves emitted by speakers are attenuated and interfered in the air, interacting with human heads and ears, and the sound of headphones enters the ears directly. .
The sound quality of a headset is more important than its technical performance. Because the shape of the human head and ears are different, a pair of headsets will have different hearing feelings for different people, so the recommendation can only be used as a reference. If you have the opportunity, you must listen to it in person. .
The comfort of the earphone is also very important. If there are other activities while using the earphone, you must also consider it. A pair of earphones should not be too tight or too loose, and should be worn for a long time. The adjustability of the headband and unit can ensure the use of different head shapes and different purposes. Professional audio personnel sometimes need a single unit to monitor, and the unit needs to be able to rotate. In addition, the length of the cable and the way of entering the unit also affect the use. A factor. When adjusting the length of the headband, pay attention: the headband is short, the pressure on the top of the head is high, and the pressure on the head of the earmuffs is small. When the headband is long, the opposite is true. The three-point pressure is the most comfortable. This problem does not exist anymore.
Durability is very important in the field of portable audio and professional. Portable audio headphones are relatively light and small, and are easily damaged; professional headphones are used and moved frequently, and the cords are also easy to be stepped and broken. The headphones are required to be made very sturdy and easy to be damaged. The parts are easy to repair and replace.
Another thing related to durability is the endurance power. A small power can push the earphones loudly. When the endurance power is exceeded, the earphones may be damaged. The endurance power of general civilian earphones is less than 100mW, and professional earphones are between 100mW-1000mW. . The voice coil of high-impedance headphones is more resistant, not as sensitive to power changes as low-impedance headphones, and more durable.