DIY Headphone Amplifier using 741 IC - Engineering Projects
The headphone amplifier circuit composed of the dual op-amp (OPA2604, et al) - Amplifier_Circuit - Circuit Diagram - SeekIC.com
Efficient Pocket Headphone Amplifier by OPA2227P - EEWeb
What is this type of op-amp circuit called and what is it good for? Boosting output power? It's a stereo headphone output in an audio module. : r/diyelectronics
Op Amp Headphone Amplifier
Headphone amplifier based OPA134PA - Amplifier Circuit Design
Headphone Driver Circuit .Driving Headphones With The SS2590
Amazon.com: Vomeko Portable Headphone Amplifier Board 2-Channel Audio OP AMP Module with Single Power Supply Provides high Quality Sound for audiophiles, 47Ω Output impedance. : Electronics