PCB uses aluminum plate
1. An audio device: input, output amplifiers, balanced amplifiers, audio amplifiers, preamplifiers, power amplifiers, etc. 2. power supply: switching regulator `DC / AC converter` SW regulator and s...
| Ranking | Name | Answers |
|---|---|---|
| 1 | PCBWay Team | 4 |
| 2 | KhronoSound Audio | 1 |