Just got my RPi set up with the Kali re-clocker and a Piano 2.1 DAC, and I’ve got to say that I agree with Michaelangelo that this is a real game changer.
I’ve been working with RPi and various DAC’s for a few years now. Have always loved these setups, but with very large, high bitrate files (I use mostly FLAC files), there has always been trouble with jitter, particularly if you are trying to do anything else on the RPi, like copying files, etc. From what I’m seeing so far, this setup completely resolves those issues, and also improves the soundstage pretty noticeably. All of this also makes a lot of sense, logically, given the buffer and the dedicated clock.
One question that I have is, why has this not been done before - i.e buffering the data being fed to the DAC with a dedicated clock? Would this not be something that could be built in a single HAT that includes the DAC? I.E. given that the Kali is just an FPGA, it seems like it’s purpose could be implemented at a much lower cost with a purpose-built circuit, and added to a DAC board.
At any rate, I’d be interested to hear if anyone knows about the possibilities for creating a DAC with integrated, Kali-type buffer and clock. It seems to me that this, combined with a low cost SBC (RPi or other), and loaded with Volumio, could be a formidable commercial product for the non-DIY audiophile market, competing with Olive One and similar products.
[also, I’m dying for a case for this setup, as I’m sure the rest of us are… anyone have anything yet?]