1. I've heard your interest in Pi2AES loud and clear. I've contacted them for a review sample, if not I'll purchase it myself. 2. It's Moode OS (not Mood, that was a typo). 3. Enjoy your music, and see you next time! 🎶

I have a USBridge Sig and this review prompted me to try the DigiOneSig. I am very glad I did this because my experience is that the DigiOneSig is a major step up in sound quality - richness of sound, definition, 3D soundstage and dynamics are all improved. The DigiOneSig is one of the best improvements I can remember trying and cheaper than many other upgrades I have tried. It is a revelation - thanks very much!

Thanks for this video! Fortunatelly i have the Digi One Sig installed four weeks ago :-)

Great honest review. I haven’t heard these devices, but your review gave a great understanding of the differences between the players. I have used a Pi2aes with ifi power x and linear power supply. It sounds great. A friend said he thought my Pi2aes sounded better than his allo digione signature….. thanks

I am pleased. I built my streamer with a Pi4 and DigiOne Signature. I liked the idea of a DIY project and that it performs like products that cost much, much more.

I was relieved at the conclusion, as I ordered a DigiOne Signature Player about three weeks ago, and in fact it arrived today.

Methodical and detailed is how I would describe your reviews. Thank you for always circling back to similar items that you previously evaluated. It helps put the current equipment in perspective. Yes please, a comparison of Pi2AES vs Allo Digione Signature. Hopefully you will be able to get your hands on a 24V LPS (eBooster perhaps) to make it fair. Also you mentioned the RBPi 4 has a better USB sound abilities in this review any thoughts on Kadas’s VIM SBC??

Sir, First of all I like to thank you for extremely precise and useful reviews in the subject. I am from India. A review of Allo BOSS2 Player will be great and much helpful for beginners like me. Thanks in advance!

Nice review .

Finally a nice comparison of usb bridge signature and digione signature ... I have both to my Denafrip Terminator plus dac and shares the same conclusion. If not playing native dsd or >dsd64 files which digione signature cannot do so without down sampling, indeed it bested the usb bridge signature. Guess separate psu and isolation really helps. Tks !

The advantage of the USBridge is that the RPI is on a card (compute model) that fits on the Allo designed USBridge board. This allows Allo to make the unit much more quiet. Now, the amazing thing is that you can order the USBridge with a case that is tall enough to fit the DigiOne Signature board, allowing the benefit of the quieter RPI to be used with the outstanding s/pdif board - a winning combination! I bought the original DigiOne and have upgraded several times (to the Signature an then adding the USBridge board/housing). Thanks for the review!

Nice one Srboljub, but we want Pi2aes review. :) Does it do DSD64 as DOP over spdif coax and HDMI i2s?

I have this and I love it, I use the Shanti too and it powers the Allo unit, and my Chord Qutest DAC. I installed Ropieeexl which works well with Roon. I also use a Flirc USB with this which lets me control the music with my Logitech Harmony Elite.

Two important things to consider. If you want to play DSD files, you need USBridge since DSD cannot be played through SPDIF. And if you need both, you can have them, USBridge allows attaching the DigiOne Signature and offer a proper cage for that setting! And if you want the best of the best, get the Shanti power supply that will work for both ;)

Will you upgrade to Allo Digi One Signature? That seems the one to beat. Very honest comparison. This hints spdif still has an edge to usb, usb is better technically but a good clocked spdif signal is simpler to drive than usb, and may sound better with dacs which is surprising, because the dac has to sync to spdif, while usb is asynchronous these days and yields less jitter in charts than spdif in most dacs.

Thx for the vid. Can I ask did you use glvanic isolation via USB when testing?

Hi! Thanks for the great video. The question the allo digit one Signature hat. What was the model of the rasberyPI there?? 4, 3b+ or 2? Was it the same is like moode? Thanks!

I wish they had a small 2 line OLED or some small 2” display so one can see what’s being played? Also I wish they had a second USB port in the rear for a USB Hard disk. Can one connect a USB Hard drive to the front ports in the USBridge Signature? Also is there a way to stream from an iPhone? I do not have Android

I would be very curious to hear how the USBridge would compare against the Digione Signature when using Schiit's Unison USB. I believe that founder Mike Moffet made Unison USB to compete against I2S.

So what files did you A/B? DSD? Flac? What level DSD? If you had 128 or 512 DSD you’d have to downsample for spdif…. Thoughts? I have the digi2 pro from hifiberry on my rpi4…and am running usb to a Cambridge dac magic 200m. I think I’m only hearing less resolution on spdif if I go to higher level dsd. I’m hearing more details over spdif of the file is 192 and below. Thoughts?

I wonder how USBridge would compared when paired with a Schiit DAC. Perhaps something to try as an outlier because of UnisonUSB. I’ve been very impressed by Unison compared to SPDIF so pairing it with a lower noise source may bring the USBridge on top. Just a thought

You shoud put the all HAT inside the player. There is a full 40 pin gpio inside. Im curious if it would sound better this way.

Pi2AES vs Allo would be fantastic!!!

Do you think the khadas tone2 pro is better than the Lotoo paw S1?If not,which DAC/Amp would you consider the best under $200?.

Is the USBridge Signature very good to reduce noise from a laptop USB output? Thank you.

Are there any DACs fully decoding Tidal Master MQA files via coaxial? Most probably only decode via USB.

Surely if a comparison is to be made, it should be between the usbridge signature and the raspberry pi alone, as both take ethernet input and stream into usb? Digione signature is an additional filter to spdif output that can be added to either the usbridge signature or the raspberry pi. I understand the comparison was sound difference. But the comparison should be between raspberry pi/Digione signature and usbridge signature/Digione signature.

Very good review and keep up the good work. I like to ask if all three units are using the same OS and PSUs? Volumio, Moode and RupieeeXL do sound different which may be led to a different conclusions. Also, you have mentioned that the DAC maybe at play here wihich may favour the digione sig with the SPDIF over the USB. I have ran the same kind of experiment with USB SIGNATURE PLAYER and DIGI ONE SIGNATURE and found them the same. Pls comment. Thanks

Question, on the Allo website you can bundle products for some savings. I already wanted their Shanti PS, so looking at streamers was next on the agenda. On viewing the Allo USBridge Signature Player for a base price of $249, you can add on DigiOne Signature bringing the total to $469. Does this mean they are putting the DigiOne Signature player offered at $315 into the USBridge case with added inouts/outputs? So for $469 you are getting perhaps a better sounding player in a metal case? Plus, for $3 more you can get an additional DigiOne case (presumably the clear case) in addition to the metal? I'm just not clear on all the hardware upgrades they offer and what they mean. Additionally, in choosing among the operating systems, which could work best and offer the best SQ if the intention of use is more via computer rather than phone? Aren't too many reviews comparing what is offered against each other as to strengths, weaknesses and flexibility. Already have the amp, speakers and dac. Dac has BT but not wireless. I figure an aftermarket wireless device could be added. Any ideas appreciated.

Hi! What dongle to have WiFi on the USBridge?

How can we add WiFi functionality, does a USB WiFi Card can do the job without messing with audio?

Your conclusion is one is better than the other. What about having them both? I believe you can have the digione signature mounted on the usbridge signature in the same box? Will this double the spif quality or does it simply make a more versatile unit, where you can use either usb or spdif? Will both signatures act as double filter?

hi Srboljub, I want to ask, did you try to connect Intona USB to USBridge Signature? Do you think this would have a positive effect on improving the sound?

Ive tried the topping e50 dac with the allo us bridge signature and it wont Connect to the usb . This is also with the ifi zen signature V2. Both have a usb 3.0 dac chip and the back of the allo have a special usb 2.0 Port Don’t work with this new generation dacs . I hope there Will come Solution for this . I m afraid this is a hardware problem

If compare to other STEAMER BLUESOUND? SOUND IS IMPROVE OR NOT

I'm soo surprise about this. Paul from PS Audio was clear. The spdif do multi-plex the 3 signal in order to go in the spdif. Then the dac have to deplex it. I'll wait for a I2S then :-p

iiWi do you think USB (or similar digital computer protocol) will eventually replace all the audio connections? It seems to me that’s the way it’s headed. We will eventually have just one universal interconnect for all devices that will carry video, audio, data, network, etc.

Hello. When starting ALLO SPARKY USBBRIDGE, what password and login must be entered? Thank you.

Nice Honest and good review. You mentioned tidal and qobuz music services,will stream youtube also?

Those side pans such as at 2:38 make the text on the case and the ports themselves completely blur out, a simple still photo would be better, please!

I have loved my USBridge Signature for a couple years now but it stopped working recently and it seems as if Allo is not providing support for their products anymore. Has anyone else heard or experienced that? They have always used a forum approach but none of their support team is responding anymore.

Would you recommend this go with SMSL M400 or rather with something of equal price?

Hi, will you try out the new more expensive model from fx audio, the d01? There seems to be a drought of reviews on it so it would be nice if you could review it

Yes i am now a less happy usbrigde signature owner. Did you use an audiophile grade USB cable?

What software you prefer for sound quality for upnp. Moode or ropieeexl?

have you try very great LPS on this ? I got ALLO LPS, wonder if there is any difference between very very good LPS or ALLO LPS

Even if the USB out from the sig is cooked nice, most USB inputs, especially on the budget friendly DACs are not as good as even cheap coax inputs. So no surprise here.

Can one connect a laptop (with Groove Music as music source) to the USBridge Signature, without loading any OS on the SD card?

Does the owner need to renew his os license yearly like with say, raspberry pie and voluminous?

Now the real question is; How does the Digione Signature sound mounted on the USBridge signature vs. mounted on the RP3/RP4 (also I now need to have a cry 😂)?

I have this and Allo Shanti. How do I ground it?

I have both and i prefer usbridge signature with curious usb cable. Better results than digione.

Good review! Thx. I own the Allo USBridge Signature and have as well the Shanti LPS. I use moOde as OS and the mpd is sounding very good. But !!! 1.) The Shanti is not the best LPS for this unit. I replaced it with a DIY LPS I build for approx the same price and this LPS is lifting the level of the USBridge to the next level. More dimensional and clearer sound. 2.) Furthermore the Shanti is extremely sensitive to power cords and the supply electricity. Changing power cords makes a big difference. Bigger than different USB cables. 3.) The USbridge Sig is sensitive for the incoming ethernet signal. Using a good ethernet cable makes an audible difference. I build a DIY Ethernet cable for approx 25€ using Sommer CAT 8 cable (2,-/m) and Telegaertner RJ45 plugs (10,-/pcs). 4.) I use the Allo unit with a RME ADI2 DAC. And despite RME is saying its USB input is very good and "immune", (so better USB cables wont make a difference), this is just not true. The soundstage and clarity in the sound is depending on the USB cable and its matching to the 2 devices connected. 5.) Using the Allo USBridge as UPNP streamer with moOde OS and mconnect App to stream Qobuz is ok, but not better than using my MacBookPro. Only doing all the above items to lift sound quality and using the Allo only as player/renderer and streaming from my MBP as server with Audirvana player will give you a satisfying streaming quality. So final conclusion: It is a good unit, but you need to put a lot of effort (and money) into it to get it to "sing". But the potential is there. Just my 2Cents

Everything you review is interesting and informative, my wallet hates you though. Have a good weekend.

There is most certainly a regular USBridge. Seems they stopped making it though. Probably because it didn't work with a regular Raspberry Pi. You had to use the Allo board I think. I'll look when I get home from work, and tell you if I'm wrong about that. I should also add that a used Pro-ject Streambox S2 Ultra is a much better way to go IMO. It has more features, and sounds better then any of these. No linear power supply needed. ✌️

"I found these two sounds very similar "... so the best value is a RP3+ and Allo Digione... in a box.

Btw, moode OS sounds better than volumio.

If they had put a small OLED display on it, I would have been much more interested. Other than that this is a fantastic sounding device. Thanks for your review.

How big a difference between usbbridge signature player and digione signature player? I'm asking cos I own the first one. Also, doesn't it depend on the DAC as well? Which DACs did you use for comparison? Some DACs can be good in usb/RCA audio and some on spdif/RCA audio based on their SINAD measurements. I am a bit disappointed but it's ok I guess since the Allo Digione signature player is also expensive than the usbbridge signature player.

Was the digi one signature you listened to running on Pi 3b or Pi 4?

"Moode" has an "e" on the end :)

Hi, What is the maximum size of hard disk it can read?. Thanks.

So basically we can say: RPi 3 < RPi 4 < USBridge < DigiOne < DigiOne Signature?

What’s your favourite USB cable?

i think Pi2AES vs Allo would be fantastic:)

Great video!. I have the USBridge with the DigiOne Signature and it is fantastic! However, I didn't like the aluminium USBridge chassis and I share your opinion of the open plastic frame. So, I designed my own enclosure (skip to the end of this video to see the completed unit ... kzfaq.info/get/bejne/nNCYpKqgvKmWaJc.htmlsi=Pt4Brm5hC3owq9-U). I used my own low-noise PSU internally for the DigiOne Signature and considered building a full 4A + 1A PSU for this, but what's the point given the price of the Shanti. So, thoughts turned to create a decent looking enclosure to align the Shanti with whatever Allo streamer/DAC you have in a neat hi-fi rack friendly enclosure (kzfaq.info/get/bejne/nbx5h8am09-bc6M.htmlsi=qK6a-C_4WFPNufSn). This project is on the back burner at the moment, but will surface again if there is interest.

troppo parlare

USB and Spdif inputs are very dependent on DAC itself! You can NOT draw conclusions comparing those on low-cost DAC-s that usually don't have the good USB inputs

And where and when will this small equipment fleet end? A completely irrational waste of resources. Madness. I get off there.