[tobz]

I'm working on a headphone stand that has a USB DAC/headphone amplifier built in, along with circuitry to detect when the headphones have been hung up, thereby switching the DAC output to a line out (to drive speakers, or whatever).

It's a shameless amalgamation of a DIY post on Reddit[1] and some design aesthetics from an existing DAC/headphone amp[2] that I really like. I'm currently at the point where the internals are close to finalized enough to order boards and do integration testing, and starting work on modeling the enclosure, which will involve some mix of CNC milling, mandrel bending and welding.

I really like throwing away money, apparently.

Blog here: https://nuclearfurnace.wordpress.com/

[1] - https://www.reddit.com/r/3Dprinting/comments/529qyp/smart_he...

[2] - https://www.jdslabs.com/products/151/the-element/

[dawnerd]

That's really cool. I've always wanted something that would seamlessly switch between headphones and my monitors.

[tobz]

Yeah, right now, I have some dinky 2.1 speaker setup, and there's a remote control box that feeds back to the subwoofer to control the volume and expose a headphone port. I have to plug/unplug when I want to switch, and the volume control button/wheel has low resolution because it's so small.

The Reddit link uses a Windows program to do it, but I wanted it to be universal because I dual-boot, so doing it in the DAC/amplifier seemed like a better approach. :)