502HTA Raspberry Pi Hybrid Tube Headphone Amp

We have started a kickstarter campaign for our 502HTA. This Raspberry Pi shield is an update to our popular 503HTA. It has much lower noise and allows isolating power from the Pi for lowest possible noise. It also has a lower profile layout and comes with it’s own clear acrylic case. See the campaign at:


The 502HTA is fully Roon compatible, same settings as the 503HTA.