The ALLO DigiOne is simply the most advanced digital (S/PDIF) transporter for Raspberry PI. There isn’t much more to say about this, really.
The DigiOne is expensive when compared to similar solution, but it’s definitely worth every penny of it. What we have here is something that was not designed to sound good, but to sound as best as possible (on Raspberry PI), and this is not yet another case of over-engineering: they made clear design choices which my listening impressions confirm to be correct.
To me, the DigiOne (or DigiOne Player, if you look for a complete player) are the best choice possible as of now if you own an S/PDIF DAC, or if you know for sure that the implementation of S/PDIF receiver in your DAC is superior than the USB side.
UPDATE: On sale is version 1.2 of Digione, which has very important improvements:
Improved ground sensitivity (rock solid with any DAC and AMP including ones with relays)
Small improvement on jitter
What they did, was develop the best possible Digital Transport HAT for the Raspberry PI, and let the measurements talk:
Jitter value = 411.4 femtoseconds
- BNC and RCA (coaxial) connector
- Galvanic Isolation
- Jitter as low as 0.411ps (1 picosecond – time taken by light in a vacuum to travel approximately 0.30 mm)
- Noise as low as 50uV
- 10 LDOs
- Based on WM8805
- 2 NDK oscillators
- Master SPDIF configuration
- Compatible only with Raspberry PI 2 and 3 (not Sparky)
Read the discussion about Allo DigiOne on Volumio Forum
Looking for a case for the DigiOne? Here you have it!
IMPORTANT NOTICE FOR EUROPEAN CUSTOMERS
Since we received some complaints for custom fees, Allo has decided to offer shipping from Europe as well. If you select “Shipping from Europe” all custom fees will be included in the order, and therefore prepaid by Allo. You can still order with “Shipping from India”, but VAT and custom fees may apply and been added when delivered.
IMPORTANT NOTICE FOR ALL CUSTOMERS
This product is shipped from India. International customers are responsible for any VAT and/or customs fees. These are beyond our control and will be based on declared value which is the board cost plus any options.