Master Clocks

[Audioseduction]

So, what is better 1 or 2 master clocks? For instance the Trinity uses 2 Master clocks and the PS Audio DirecStream DAC uses 1.

Trinty DAC:
"The asynchrony USB interface is galvanic de‐coupled from the computer side and is synchronized with two full
customized, hermetic sealed Voltage Controlled Oven Controlled Xrystal Oscillators VCOCXO, which deliver the 2
master clocks of 44.1kHz*512=22.579200.0MHz and 48kHz*512=24.576000.0MHz."

PS Audio DirecStream DAC:
"One master clock. Two clocks would mean more jitter. Even being able to shut
one of them completely off while using the other adds stubs and possibly worse,
logic or switches between the clocks and the final retiming-flip-flop."

 

[Mike]

George - what does DCS use? That's reportedly one of the best clocks.

Hey George - if you want to borrow my Lumin A1 for a few days while I'm reviewing the S1, let me know.

 

[Audioseduction]

George - what does DCS use? That's reportedly one of the best clocks.

Hey George - if you want to borrow my Lumin A1 for a few days while I'm reviewing the S1, let me know.

dCS Paganini Master Clock, I don't know the details on it.

Thanks but I'm very very happy with the Bel Canto DAC3.5VB MKII and don't expect to swap it out for years to come. :audiophile:

 

[Cincy2]

The dCS Vivaldi master clock has two separate, adjustable clock frequencies. These clock signals feed the Upsampler and the DAC in my configuration to keep each locked in synchrony. I have the two clocks set to 44.1 KHz and 48KHz. Depending on the frequency of the Upsampler output, the DAC will automatically choose the correct frequency from the Master clock. Example: DSD input to the DAC requires 44.1KHz or an even multiple. A frequency of 44.1KHz or even multiple is required for 24/192 sampling rate. The theory behind all of this is contained in the dCS clock users manual which can be downloaded from their website.

Cincy