Got home today and switched on the hifi. Lots of treble energy emminating from the speakers. Did it really sound like this yesterday? Sounds a bit flat and "digital" today...
I pulled out and pushed back in the digital RCA contacts to see if that would help. It helped a little, but the sound was still bright. I then thought I should try the same on the newly installed "separate signal ground connectors" (see http://forums.slimdevices.com/showthread.php?t=28307 ). Sat down again.. WTF, why is the sound so quiet? I haven't touched the volume.. I turn up the volume and now it sounds the way it should again! No harsh treble. I'll now make a couple of assumptions and present a hypotheses: Assumptions (or guesses if you prefer): 1. The one thing that deteriates in contact interfaces first is HF transmission. So my physical movement of connectors helps HF move through the signal ground connectors. 2. HF-differential between the SPDIF sender and transmitter's signal grounds will show up as part of the digital signal sensed by the SPDIF receiver. Hypothesis: In an coax SPDIF interface: Sender and receiver signal grounds which are not HF-connected will allow HF to embed in the digital signal (detected in the form of jitter) to produce artificial overtones to the music signal. The extent to which this happens will depend on the exact implementation details for the SPDIF transmitter and receivers. -- P Floding ------------------------------------------------------------------------ P Floding's Profile: http://forums.slimdevices.com/member.php?userid=2932 View this thread: http://forums.slimdevices.com/showthread.php?t=28502 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
