Balanced Headphone Amp

This balanced headphone amp has a fun, little quirk.

For the gain stage diodes, were using LEDs, and testing different LEDs gives different results, so for this board layout, the circuit is set up to switch between different LEDs on relays internally to give the final unit some flexibility. The circuit itself has been tested, but we will be checking for switching noise on this layout.

Boards are being ordered in the coming week - you can order one from the shop at a low price to support the development.