Hi-Fi Headphone Amplifier Circuit


Hi Fi Headphone Amplifier

 

Hi-Fi Headphone Amplifier

 


Can be directly connected to CD players, tuners and tape recorders.
* Tested with several headphone models of different impedance: 32, 100, 245, 300, 600 & 2000 Ohm.
* Old 8 Ohm impedance headphones can be also driven, but these obsolete devices are not recommended.
* Schematic shows left channel and power supply (common to both channels).
* Numbers in parentheses show IC1 right channel pin connections.
* A correct grounding is very important to eliminate hum and ground loops. Connect to the same point the ground sides of J1, P1, C2, C3 & C4. Then connect separately the input and output grounds to the power supply ground.


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