O2 Headphone Amplifier PCB

PCB for the O2 Headphone Amplifier in the latest version 1.1
This PCB has been developed by NwAvGuy under the Creative Commons License CC BY-ND which can be seen here.

The PCB has been produced according to specifications with two differences, higher copper weight and immersion gold pads.
The full specs are:

• material - FR-4
• finished hight - 1.6mm
• copper weight bottom/top layer - 2oz
• soldermask both sides - red
• silk screen top layer - white
• pads finished with immersion gold
• size 100 x 80 mm