Improving the High-Frequency Response of PEI-Based Earphone with Sodium Copper Chlorophyllin
The polyetherimide diaphragm, sodium copper chlorophyllin (SCC), and copper ion coating composite used on earphones were observed to improve the high-frequency (10k−14k Hz) performance. This reinforcement phenomenon was expected to make the sound experience brighter and more diverse. By SE...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-01-01
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| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/25/1/219 |