Description: Audio Preamplifier Circuit Board PCB Assembly Manufacturer, Audio Amplifier Equipment PCB Circuit Board Custom Proofing Production, Audio Amplifier Circuit Board One-Stop PCBA Manufacturer;
| Layer | 4L | Material Thickness | 1.6mm |
|---|---|---|---|
| Surface Finishing | HASL Free | Finished Copper Thickness | 1oz |
| Solder Mask | 2*Green | Legend Mark | 2*White |
| Material | FR-4 | Test | Flying Probe Test |
| Impedance Control | Yes | Routed Outline/Punching | CNC+V-cut |