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A film about the Allo DigiOne Signature Streamer

Allo DigiOne Signature Streamer - 13th Note HiFi Reviews

In this film I look at the Allo DigiOne Signature Streamer. I have previously written up an article about this mass market busting budget conceiver here.

I make a comparison to the Yamaha WXC-50 streaming pre amp and pose the question that streaming is a huge function of the quality of the DAC.

So long as you have a good streamer but a GREAT DAC, you won’t be dissing streaming any more if you haven’t jumped onto the streaming bandwagon.

This product also makes great sense if you have a Roon server and want to add another streamer to another HiFi because it’s all about Audio.

Feel free to let me have your thoughts and comments in the comments section… What d’ya think?

A film about the Allo DigiOne Signature Streamer

Manufacturer :

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  • It’s a “re-clocker”. The unit has its own clocks so it does not rely on the jittery RPI clocks
  • It’s galvanically isolated. The clean board is isolated (ground and signals) from the dirty side
  • It needs 2 PSUs, one for 5V/2A-3A (RPI) and a second power that can be almost anything.
  • It’s recommended the cleanest power supply possible (batteries, linear but even a good SMPS will work)
  • Old driver is compatible for both units (chose DigiOne on your favorite player)
  • Measured jitter has decreased further, less than 400fs (tested at buffer)
  • Output is coaxial/BNC and rise/fall time is 1ns and voltage level is exactly as per guidelines (550mV on coaxial) measured at end of transmitting cables
  • Includes 2 x DC to Type C Adapter Cables and 1 x DC 5.5 x 2.5 to DC 5.5 x 2.1 Adapter

What Allo have to say ;

Our regular DigiOne has no equal.

In our quest for digital perfection we asked how we can improve the design and give you the ultimate DigiOne.

First, we decided to use more board space (we are using 2 boards), the PCB area increased 220%. First board is the “dirty side” and top board has the “clean side”. With the extra space, we used the best decoupling capacitors (film) on everything that’s important (clocks, buffers, flip flops). Also, with this extra space we added a supercap on the “clean side” so most of the electrons come from this onboard “buffer” (there is so much power onboard that DigiOne Sig can run a few seconds without any power attached to the clean side).

We also decided to use 2 power supplies. The “dirty power” needs 5V /2-3A (RPI power). The “clean side” needs about 100mA and accepts from 5V to 6V. You can use anything on it, linear power supply or pure batteries power.

Thirdly, we changed the clocks to the latest from NDK (ultralow jitter SDA) that have lower phase noise than the previous generation.

Allo Website – Jan 2020

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Written by Simon Price

I'm music lover who shares experiences of faithfully reproduced audio in an ENGAGING way with HIGH VIDEO PRODUCTION VALUES. I enjoy and make reviews as I love audio gadgets, being a voice on audio and producing creative videos that ultimately benefit the industry and new participation. I keep technicalities easy, as I believe great audio serves music and music is inclusive and to be enjoyed by all!

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