If you would care to read even the last couple of postings, you would find all relevant links and infos.
Like 1351 or 1354... and I would check everything else as well.
I am not quite sure, but these posts seem to relate to the firmware and other "externals" of the UGS+Muses preamp from thd group buy. However I am looking for a rundown how the UGS circuit works. I am sure it's out there, but this thread is very long and it's hard to find things (the same applies to the GB thread , and also to the other thread in the French forum).
I am not 100% sure, but I think the original document is from François (alias Flat) who posts regularly on this French web site:
https://www.homecinema-fr.com/
As far as I can remember (this was a while ago), François is the one who obtained Nelson Pass's permission to share that schematic for non-commercial use.
https://www.homecinema-fr.com/
As far as I can remember (this was a while ago), François is the one who obtained Nelson Pass's permission to share that schematic for non-commercial use.
I have finally finished my UGS preamp! It sounds fantastic and I'm very happy! I do have a question though, the volume seems to "jump" at a certain level... When I reach I think -23db it goes a little quieter and the volume changes very little but at around -17 it jumps up and goes much louder.
I first thought I had soldered the wrong resistors but since the same thing happens in both channels I thought I should ask if someone had encountered the same?
I first thought I had soldered the wrong resistors but since the same thing happens in both channels I thought I should ask if someone had encountered the same?
^ Is this the original UGS AI version or the UGS Muse version. Since you mention the wrong resistor(s), I am assuming it is the AI version, with what I presume to be a relay based volume control scheme.
I haven't looked at the schematics for this one (AI), but I would start by looking at the processor bus to the relay controllers. Any shorted or non connected pins on what I would presume to be the data bus?
I haven't looked at the schematics for this one (AI), but I would start by looking at the processor bus to the relay controllers. Any shorted or non connected pins on what I would presume to be the data bus?
Also, I went looking both here and on homecinema-fr and cannot find the schematics for the UGS AI version. All of the psykok links are bad, which isn't too surprising given the 2007 or so vintage.