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Does the voltage of DC power banks remain constant with time? I think there are drops. So dc may not be pure dc like a straight lineALLO being a digital transport, wondering if LPS will bring any major benefit.
Thanks for the link though.
I am also wondering how long a high capacity battery bank will last with the ALLO
The essential difference between the USBridge and digione is that the boards can be powered individually. You can go with a low noise SMPS or even better a LPS or a battery bank with the USBridge board and the ALLo wall wart for the Sparky board.digione signature
The RPI has more processor power, I could make out the difference when the library scanning works, RPI is done in less than a minute for my and sparky goes on for edges. Also RPI3 has bluetooth advantage for streaming from mobile phone via bluetooth although newer volumio images have UPNP streaming. I do not know sonic difference thoughAlso what is better to use, Allo sparky or RPI.
The way sparky is made it's more suited for audio
This is one bad thing I must admit, I did however compare USB Bridge (lent from a FM) with Digione (not signature) in my setup and almost sounded identical except that the female vocal was getting some undue smoothening in USBBridge than Digione and later sounded more natural on voices but unless someone hears both its difficult to comment.But the digione board won't run with sparky and the USBridge won't work with RPI
you are right, i have experienced this too even in recent volumio versions and I know the root cause is some specific file of specific album where there are special chars or too many chars in folder / file name that creates problem, at times some audio files have problems in ID tags and as a result this scan halts. Monitoring the last album scanned and alphabetically what the next track or album is the faulty files can be isolated and removed to avoid this problemThe big problem I had was in making it read my almost 2TB of music data. I found its library implementation shoddy.
it never updated.
For USB, yes, that is why ALLO developed Sparky with the USBridge.So I think as far as SBC is concerned the RPI or sparky does not make huge difference as far as an add-on card is used
Both must sound similar as the approach with both is the same, one being USB transport and the other with coaxial output.This is one bad thing I must admit, I did however compare USB Bridge (lent from a FM) with Digione (not signature) in my setup and almost sounded identical except that the female vocal was getting some undue smoothening in USBBridge
In my "not so resolving" setup I could make out difference. I suggest you try two side by side. I agree theoretically they must sound similar if their numbers match but does they match? Also ioved away from usb for neverending jitter, clock sync problems. Probably the signature would sound better for two power supply mode.Both must sound similar as the approach with both is the same, one being USB transport and the other with coaxial output.
I believe the digione signature sounds closer to the USBridge.