Allo Digione Signature

[allo.com]

6 minutes ago, matthias said:

 

Does the DIgiSig player come with the new RPI3B+ ?

Thanks

 

Matt

Yes latest RPI3B+

[matthias]

13 minutes ago, allo.com said:

Yes. Clean side accept more than 5V but for heating pourposes better to stay under 9V

 

I think the best will be a 6,4V LiFePO4 battery.

 

Matt

[allo.com]

10 hours ago, matthias said:

 

I think the best will be a 6,4V LiFePO4 battery.

 

Matt

Thats what I am using.

[pjmcos]

1 hour ago, allo.com said:

Thats what I am using.

Is there a measurement data for Allo smps?

[allo.com]

Its a cheap SMPS , we don't have any exact measuring , but from what I remember its not so bad. About 2.8mV noise ripple at 2A

[steklo]

Hi,

 

I'm looking for a good  PSU solution for RPi / Digione signature as well.

 

I could imagine that a battery PSU like Ciunas ISO-PS with dual 7V outlets might be a good choice:

 

https://www.ciunas.biz/product-page/iso-ps

 

As I was told the 7V outlet is free from any regulator; that means the full current delivery is available directly from battery. As the clean input of Digione signature can take any voltage from 5V to 29V, one could that way take full advanage of that direct-out-of-battery-approach.

The second 7V outlet of the ISO-PS could be used to feed a LT3054 LDO regulator set to 5V output and then feed the dirty side of Digione (and through that at the same time RPi).

 

Nice LT3045 boards:

http://www.ldovr.com/product-p/lt3045-a.htm

https://www.mpaudio.net/product-page/sd-hpuln-ps

 

(The 5V outlet which Ciunas also offers is regulated by XRP6272 which has 2% output voltage accuracy; that is why I think LT3045 might do a better job)

 

But – the two outlets of the battery are not galvanically isolated! John Kenny (Ciunas) says this doesn't matter as any noise introduced from one outlet would get lost within the large capacity of the battery and therefore would never be apparent on the other outlet.

 

What would you think about that?

 

Best regards

Stefan

[allo.com]

Hi Stelko

 

 you need to respect the current specs of DigiOne Sig. Dirty side needs 2.5A. LT3042 from the link you provided shows a max of 1A

 

Furthermore.. the dirty side does not care much whats feed to it. I would recommend a cheaper SMPS for dirty side and a battery like you have (7V is fine) for the clean side.

[olklei]

I have a question regarding my DigiOne SiG.
It arrived and seems to be working. However it does not look like the pictures on the allo webpage. It has a strange soldering near the diode sign (see pic.)

Is this  how  it  should be?

[allo.com]

Yes , DigiOne Sig has 2 diodes and we decided that one will be removed. (it works with both but voltage drop is lower with 1 diode only that you can find on second board)

 

 

[TAV]

Will an aluminum case be available for the Signature at some point? 

[Johnjc]

Just to let people know got the signature up and running

I am feeding the dirty side with the supplied SMPS I might experiment later on as I have a spare battery I can use and could use a 12v to 5v dc converter Just need to find on with a USB C output or perhaps a adapter 

Sound wise it is a nice step up. The tonal colour is more richer, it gives more slam and micro detail. Both files and Spotify sound excellent. 

I need to come up with some way of powering them both up at the same time

[nbpf]

3 hours ago, Johnjc said:

Just to let people know got the signature up and running

I am feeding the dirty side with the supplied SMPS I might experiment later on as I have a spare battery I can use and could use a 12v to 5v dc converter Just need to find on with a USB C output or perhaps a adapter 

Sound wise it is a nice step up. The tonal colour is more richer, it gives more slam and micro detail. Both files and Spotify sound excellent. ...

You mean a nice step up from the DigiOne, I suppose, right? Thanks, nbpf

[alastr]

would the clean side work with 3.3V PSU?

am I getting it right that if ordered from Europe, there is no option of pre-installed software?

 

thanks,

alex

 

[matthias]

On 8/31/2018 at 1:00 PM, steklo said:

As I was told the 7V outlet is free from any regulator; that means the full current delivery is available directly from battery. 

 

The Ciunas devices use LiFePO4 batteries. These deliver voltage output of 3.2/3.3V or multiples of these voltages. 

I am wondering how they can claim an output of 7V without any regulator.

 

Matt

[Cortes]

@ALLOaudio

 

Is it possible to use the Digione Signature and Katane with Tinker board instead of Pi board?.

[davide256]

On 8/28/2018 at 10:05 AM, allo.com said:

DigiOne signature will be independently measured by Amir at audiosciencereview . We think we have the best jitter measurements.Compared with ANY hardware from any manufacturer.

I'll wait for Darko, Hans Beekhuyzen, or  Jay Luong reviews. There was good promise with the DIgione, no irritating digital artifacts; I'm hoping the  Signature tweaks bring its

coax  board to parity with USBridge resolving power.

 

[matthias]

9 hours ago, davide256 said:

I'll wait for Darko, Hans Beekhuyzen, or  Jay Luong reviews. There was good promise with the DIgione, no irritating digital artifacts; I'm hoping the  Signature tweaks bring its

coax  board to parity with USBridge resolving power.

 

I wait for the reviews too but I think the Digione Signature will outperform the USBridge.

At the moment there is a price drop on the Sparky SBC and the USBridge so I hope Allo will launch a Signature version of the USBridge as well.

 

Matt

[nbpf]

42 minutes ago, matthias said:

 

I wait for the reviews too but I think the Digione Signature will outperform the USBridge.

At the moment there is a price drop on the Sparky SBC and the USBridge so I hope Allo will launch a Signature version of the USBridge as well.

 

Matt

In which sense can the Digione Signature outperform the USBridge? They are rather different devices with very different outputs ...

[matthias]

8 minutes ago, nbpf said:

In which sense can the Digione Signature outperform the USBridge?

 

Both compared with the same DAC.

 

Matt

[Johnjc]

I know the USB bridge quite well and whilst I think it a bit better than the DigiOne, the Signature is in another league for sure. But for those wanting a USB output it might be better to wait a few months

[matthias]

8 minutes ago, Johnjc said:

But for those wanting a USB output it might be better to wait a few months

 

What do you have in mind?

A new USBridge or something from another manufacturer?

 

Matt

[Johnjc]

I am pretty sure Allo would not miss the opportunity to upgrade that USB bridge to a Signature version. I have a few friends waiting for this. 

The Signature is a very different beast to the DiigiOne

[matthias]

2 minutes ago, Johnjc said:

I am pretty sure Allo would not miss the opportunity to upgrade that USB bridge to a Signature version. I have a few friends waiting for this. 

The Signature is a very different beast to the DiigiOne

 

Maybe they launch a new Sparky as well or they make the USBridge Signature for another SBC.

 

Matt

 

[Johnjc]

At the moment they seem to be building their product base at quite a fast rate, so think more to come. 

[nbpf]

2 hours ago, matthias said:

 

Both compared with the same DAC.

 

Matt

But in order to compare USBridge and DigiOne with the same DAC, you have to use a USB to SPDIF interface between the USBridge and the DAC which makes the comparison a bit pointless. I would rather compare the DigiOne with other transports with SPDIF outputs.