Vivaldi DAC with Upsampler and NO clock connections

[PAR (Pete)]

I guess the first thing to confirm is that the synch on the DAC is set to Audio.

This sort of problem is often caused by the TV and not the dCS equipment as the TV’s Toslink signal lies outside of the range suitable for the dCS input. There is a known issue with LG TVs. However you say that all is OK into your Vivaldi DAC which surprises me in these circumstances as if the TV is OK into the DAC it should be the same for the Upsampler . Anyway the linked thread may interest you.

Bartok and Rossini dac problem using optical connection

@Givara, based on James’ explanation of the issue, what you might want to try is an active TOSLink Repeater or Splitter; one that will regenerate your LG TV’s TOSLink signal, in the hopes that the regenerated signal is well within proper specs. Something like this between your TV and your dCS; [image] There’re quite a few on Amazon. Make sure it’s an active unit, meaning it requires power, and not one of the passive optical splitters. Shouldn’t cost more than a couple of cups of Starbucks, so…