DigiOne SPDIF Output


$110.00

Warranty
1 Year

Rpi is not included with this product

Best: Shanti LPS Dual
Great: Nirvana SMPS
Regular: PSU Cheap 5V SMPS (made in China)

*We recommend Shanti Ultra low noise dual linear PSU for your DigiOne, and above you get it at a discount.

Top Reviews

The Hans Beekhuyzen Channel Review

The Hans Beekhuyzen Channel
Video review of the DigiOne on YouTube

AVForums South Africa
"The Allo DigiOne combined with the Multibit DAC sounds fantastic..."

Darko.Audio Review
"DigiOne pulls five star sound quality from RPI..."

EnjoyTheMusic.com
"It is very natural sounding, there is zero harshness..."

Audio Science Review
Independant Measuring of DigiOne and DigiOne Signature


 

First... What is a “Transport”

Basically you have your music on the cloud or on your PC/NAS. If it’s on the cloud , you will use your smartphone to access your account and play. From your smartphone, in order to send the music to your DAC (DACs have USB and/or S/PDIF inputs) you need a transport that will be visible (to your smartphone / tablet /PC) as an Airplay device (iOS ) or UPNP/DLNA (Android/PC).

Our transports have different outputs. USBridge is feeding your DAC through USB and DigiOne is using coaxial/bnc. Depending on your DAC inputs you need to make a choice.


 

We started designing a digital (S/PDIF) transport for RPI with one goal in mind: Absolut best S/PDIF output.

Now let me explain… behind the grandiose wording there is an exact science. Since this is a digital stream the most important aspect for "absolut best" is jitter. Jitter in digital domain directly translates into analog errors. Second, is noise. Lowering the noise that’s injected in your DAC will produce some (small-to-none) improvements.

Then we went to work.

10 LDOs, 12 LPF, DC/DC convertors, galvanic isolator, WM8805, flip flops, buffers.

Optical had to go… by definition it has a jitter of 4ns. That’s 4000ps. We simply removed it. However, optical has galvanic isolation so we took the decision to use a digital isolator instead that separates the outputs from both RPI and WM8805.

DigiOne has 2 outputs: BNC and plain RCA (coaxial). On both, we have achieved jitter of 0.6ps (1 picosecond – time taken by light in a vacuum to travel approximately 0.30 mm).

Noise. 50uV (batteries have about 12uV of noise).

What we achieved, in our opinion and based on public measurements, is the best transport at any price point (yes, even when compared with 5k USD/EUR transports).

Enjoy.

 

Waveforms of BNC and RCA S/PDIF Out

 

Compatibility

 

The Digione has a galvanic isolator for both power and signals. You do not need an extra isolator. As well, DigiOne has a double relocking of the S/PDIF stream (one of them taking care of metastability and the second one taking care of realigning the data). You do not need another reclocker (like Kali).

  • Compatibility: RPI only
  • PSU: Not needed (power is taken from RPI, then we use a isolated DC/DC convertor with filters and LDO)
  • Not Working With: Sparky, Isolator, Kali

 

* Please note that all acrylic cases we ship, have a protective film (which looks like brown paper). You will need to peel this film off, in order to reveal the case. This is to prevent scratching and fingerprints during shipping.

Features



  • 10 LDOs, 12 LPF, DC/DC convertors, galvanic isolator, WM8805, flip flops, buffers.
  • 2 outputs: BNC and plain RCA (coaxial)
  • Noise. 50uV

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RPi + DigiOne Case
BNC to RCA Adapter
BNC to BNC Cable
RCA to RCA Cable
Standoff Set

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