Since you bought the digione signature addon with the USBridge, you're in a unique position to compare both the digione signature and the USBridge. Please do compare between the USB and SPDIF out of your Allo and let us know which one sounds better to your ears, if there is difference at all.
I intended to do just that and was one of the considerations that weighed with me while getting the combo
so far, compared the usbridge signature (
through Audioquest Pearl USB cable>Chord Mojo>Audioquest Golden Gate) to my SR6013 (
through RCA preamp out and Mogami Gold interconnects) and laptop
(through Audioquest Jitterbug Noise Filter>generic usb amazonbasics usb 3.0 usb cable>Ifi Zen DAC>Ifi 4.4mm pentaconn to balanced XLR) as streaming sources, all connected through the aforementioned connectors to a Cambridge Audio CXA81. I’ve mentioned the cables to inform people reading this post about the weak links in the chain besides the source, amp and speakers itself. Speaking about speakers, the ones employed during this test were the Quad S5's.
Just to clarify in case somebody cries foul, the Chord Mojo connected to my laptop as a source through the abovesaid set of connectors sounds near identical to the Ifi Zen DAC with the GTO filter and aforementioned set of connectors to my ears. My thoughts on the comparison between these two DACs are already documented on this forum.
All music was played through spotify and I was quickswitching between inputs on the CXA81 in order to be able to immediately gauge the differences and more importantly, negate the effects of inconsistent memory. time taken to switch between components was approx 3-5 seconds max since I have to switch source output on the spotify app and at the same time, select input on the Amp. The fact that spotify switches seamlessly and instantaneously between sources without missing a single beat is what has compelled me to keep it around despite already being subscribed to Apple Music and Tidal.
In comparison to the USBridge Signature, the laptop sounded thinner and dryer though the details were all there. Conversely, the USBridge signature had a richer tonality and sounded meatier without overpowering the microdetails. Bass was also stronger without overpowering other frequencies. After coming from the laptop, it sounded like the same music had been sprinkled with a bit of magic sauce which made the music sound sweeter. I hate to use the word I'm going to use next but for lack of a better adjective to my mind at the moment, the USBridge sounded more 'musical'.
On the other hand, the SR6013 (
through its internal DAC,its AKM though does that matter at all?) had a similar rich tone to the USBridge Signature but detail retrieval was nowhere close to it or the laptop and the bass was a little too strong, overblown almost and a little one note as the SR6013 was not able to track the changes and shifts in bass notes as well as the other two. Somehow, compared to the other two sources, the balance between the terble, the mids and the highs seemed off for some reason. Though cables shouldn’t be the limiting factor, I’ll try swapping out the mogami's for the DAC ARX01 interconnects to see if that makes a difference though ideally, it should not.
Insofar as SQ is considered (
emphasis on SQ as i have a bone to pick when it comes to ease of use), the USBridge signature has come out on top and convincingly at that.
Next will be a comparo between the USBridge (
connected to the mojo through usb) vs Digione Signature (
SPDIF to the Chord Mojo). However, i don’t have the appropriate cable at the moment so i’ll have to get that first.