PCB Grinder “Head Grinder” Headphone Amp

Projects > PCB Grinder "Head Grinder" Headphone Amp

Designed by Gustav from PCB Grinder and Jakob Erland from Gyraf Audio, the Head Grinder is a parts kit for a boutique-style, high-gain headphone amplifier based around a pair of NE5534 ICs. The builder will need to supply an enclosure, mounting hardware/connectors, and power transformer with (2) 18V secondaries.


  • Small footprint
  • Low component count


  • €64 for component/PCB kit

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