M3 headphone amp
posted Mar 14th 2008 6:00pm by Will O'Brienfiled under: home entertainment hacks, laser hacks

If you’re serious about your headphone amps, you probably already know about the M3 headphone amplifier. Instead of going for the extra tiny, they’re going the ’screw the size, it’s all about the sound’ route. Thsi thing needs a 24v .5amp power supply. Boards are available, and the discussion has gotten so long on headwize that they exceeded the maximum thread length.
I got busy with the laser last night and came up with something new: a custom etched track pad. It still works, with a bit of added texture where I introduced it to the warm glow of the laser. Hit the link for pics and a walk through.

I gotta say, your a little behind the times on this one. this was a big hit on Head-fi like two years ago.
However I gotta say, this is a sweet project for anyone serious about headphones. be wary, what this post doesnt warn you about is the parts cost which frequently pushed $200 before you get to boutique black gates or other high end caps.
I made one of these things and I cant say enough good about it. it made my DT880s sing! (the SA5k’s I got to try sounded superb as well)
great project but its not a weekend affair.
Posted at 7:08 pm on Mar 14th, 2008 by Jerb