Archive for December, 2012

O2 Headphone Amplifier Project

Sunday, December 16th, 2012

O2 Headphone Amplifier

I made this! It is a headphone amplifier for use with my Sennheiser HD650 headphones.

I’d love to be able to claim that I designed it, too, but that wouldn’t be true. It was designed by NwAvGuy and sold as a self-assembly kit by All I did was buy the parts and put them together.

Read on to see what’s inside and how I got on …