19-Dec-2014, 11:34
Regarding where to connect to the grounding cable on a Devialet, I did a few measurements a year or so of the resistance from the earth pin of the plug on the mains cable to the point (ground part of each connector) where each Entreq grounding cable could connect to. The measurement was 0.5 Ohms to the grounding post of the Devialet and to the ground pins on the AES and digital RCA connections. The line 1 & 2 RCA connectors however measured 11 Ohms suggesting there was a bit more going on there circuitry-wise . These connections are configurable in several ways (i.e line 2 phono or line for instance) so there's clearly a bit more going on with them. From what I remember the Entreq dealer recommended connecting to one of the phono RCA connectors, but I suspected this was more out of habit than any technical differences between connectors as he hadn't had the chance to do any measurements like I had. Unfortunately on my Devialet the phono connectors are in use so I put the ground cable elsewhere. Interestingly I had it on one of the line 1 RCA connectors for a while but I recently moved it to one of the digital RCA connectors (on of the right-most pair of the 6 RCA connectors when looking towards the back) and things sounded a fair bit better to me so those differing impedances may well have a bearing on things (well they should!).
