I designed the amplifier myself from low cost components, pretty much built it from left over stuff from other projects that I had laying around. If anyone is interest I can also upload the circuit diagram and some pictures of the unit.
Here is the circuit diagram
Quote from: uart on 08 August, 2009, 10:34:17 AMHere is the circuit diagram
Thanks! I feel like crying when I see stuff like this. This costs maximum $15 in parts? If you go into the headphone amp world, people will say $100 is a very low cost for a "entry level" headphone amplifier, but you have just demonstrated it really does not cost much to make a good (measure well) headphone amp and that headphone amps can be made simply. I feel like crying because of how disgusted I feel with the headphone eqiupment industry.