Headphone Amplifier

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Headphone Amplifier: Front view
Headphone Amplifier: Front view

Not that much to say here. Simply a Headphone Amplifier. Based on Douglas Self “Small Signal Audio Design” second edition pg.560 and pg.33 fig.1.12

Simple dual amplifier with opamp-array (multipath amplifier).

Specs and features

  • Drives headphones in the range from 50R to 600R
  • Runs on +/-15V and +/-12V
  • Power consumption around 25mA each rail

The documentation and the Gerber files for download can be found in my website.

Headphone Amplifier: Schematic control board
Headphone Amplifier: Schematic control board
Headphone Amplifier: Schematic main board
Headphone Amplifier: Schematic main board
Headphone Amplifier: Populated control PCB
Headphone Amplifier: Populated control PCB
Headphone Amplifier: Populated main PCB
Headphone Amplifier: Back view
Headphone Amplifier: Back view
Headphone Amplifier: Side view
Headphone Amplifier: Side view