Category Archives: Uncategorized

HiFiBerry DAC featured in Make magazine

cover_makeOur favorite DIY magazine “Make” features the HiFiBerry DAC and Digi in the current issue.
Quote: “I tested both their DAC and Digi models and was quite impressed at the aural improvement – details are clearer and the audio gains a real sense of space that felt horribly absent when played through the Pi’s built-in output”.

Subscribers of the digital edition can download the current issue already, print customers should receive it in the next days. You’re not a subscriber? You can subscribe online or even buy single issues in digital format. Have a look at

HiFiBerry Digi support in Raspberry Pi Linux kernel

hbdigi-proto-raspberryOur HiFiBerry Digi will be available soon. Now, another major step in development has been finished: The HiFiBerry Digi support is included in the official Raspberry Pi Linux 3.10 kernel. If you’re interested in the source code, check out the pull request on Github.

I want to thank Florian Meier – the author of the Raspberry Pi I2S kernel module – for his great support. During the last weeks, I learned a lot about GIT and Linux kernel patches.


ltspice-macI was looking for a Spice simulation for MacOS, but couldn’t find a good one. Volta has a native Mac GUI, but unfortunately the standard library is very limited. In the past I often used LTSpice or Tina-TI for Windows. I was sure, that both run only on Windows. But now I noticed, that LTSpice also supports MacOS now. When did this happen? I had a quick look at the software. The circuit editor does not really feel like a Mac program. For most command you have to use the right mouse button or function keys. Simulation directives have to be written as a spice directive in the circuit. You cannot select them in the menu as in many other spice simulations. Also a lot of the features of the Windows version is not available in the Mac version. You cannot display the operation points in the circuit (at least I could not find out how). My recommendation: use the Windows version in a virtual machine, it is much easier to use than the MacOS version.

RIAA stage online calculator

You want to build your own RIAA stage or change an existing? You want to use different capacitors for your platINA? Then check out our online RIAA calculator. You can simply enter the value of the capacitors you want to use and calculate the necessary values of the resistors. The calculator even recommends a parallel circuit of two E24 resistor values, that match the necessary value best.
This calculator is specifically designed for a passive/active RIAA equalization, but expect more calculators in the next time. Another feature that is planned is an online frequency response plot that shows how the filter deviates from the optimal RIAA equalization.