Anyone looking for a portable headphone amplifier to be able to get the most out of their hi-fi headphones, may be interested in a new pocket 9v Deluxe CMOY Headphone amplifier which has been created ...

The CMoy portable headphone amplifier was designed for testing purposes while using a single OPA134 op-amp in a non-inverting configuration. The project has adequate current capability to drive most ...

I recently built a CMOY headphone amp, and while I am quite pleased with it, I don't like using disposable 9Vs, and I could use more power. Therefore I was wondering if could replace the 9V with some ...

[Rupert Hirst]’s headphone amp ...