I recently acquired the Audiophonics DigiRescue, a coax/spdif reclocker designed by Ian Canada. Ian Canada is best known I think for his many diy-friendly ultra low noise focused Raspberry Pi products. Since I don't play in the Pi world I don't know much more beyond that but I have looked on in envy at some of the wonderful designs he's produced. Somehow popular European online audio retailer Audiophonics was able to get Canada to design this non-Pi unit and for a very reasonable price. Given the current exchange rate it's only ~$135 US. Shipping from France is ~$30 and very fast. I get my orders in just a few days.
Per description: "Using a high-precision local clock and Ian Canada's discrete reclocking technology, it perfectly resynchronizes S/PDIF signals to achieve very low jitter. The result is a sound reproduction of an incredible clarity and precision."
So it reclocks and galvanically isolates. SPDIF Jitter is listed as 20ps. I am not a Jitter expert but pretty sure that is extremely low. It's takes external power via usb-c.
I compared the Digirescue with a Singxer SU-6 which retails for $750. Source, Wiim Ultra. Output to the new Topping D90III Discrete. Singxer powered by low noise LPS. Digirescue powered by Talentcell 5v battery pack. First thing I noticed was the Digirescue has a much blacker background. Or even like no background. Next, imaging much more precise. Very precise I would say compared to the SU-6. Detail retrieval is exceptional thanks to the lower noise, also improved over the SU-6. Vocals are more locked in place, inhalations and microdetail in expression more audible. Tone and timbre I would say mirrors source quality so there isn't coloration or augmentation/reduction. Just more musical information. All this without fatigue or brightness/digititis. I continue to assess but IMO the Digirescue is a step up from the SU-6. What I hear from the Digirescue is what I typically associate with lower jitter devices; precision, detail, more 3D pop from background. Also the battery pack is essential here; with a typical 5v smps the Digirescue is still very good but the delta is reduced and the presentation not as pure.
If you use coax out or looking to use one I give the Digirescue a big thumbs up. I have played with a lot of cheaper reclockers and similar over the years (Singxer F-1 anyone?) and the Digirescue should cost a lot more than what they're asking, especially given the pedigree of parts and design.
https://www.audiophonics.fr/en/digital-interfaces/audiophonics-digirescue-reclocker-spdif-optical-coaxial-galvanic-insulation-24bit-192khz-p-18113.html
