1 Clocks are changed to NDK SDA (lower jitter)
2. All important bypass capacitors are now film
3. 2 power inputs , one for “dirty side” and one for “clean side” . Dirty side input is 5V (2.5A for RPI) and clean side 5-18V (75ma) allowing even batteries to be used
4. Clean side has now a supercap for plenty of power on board.
What, the signature is cheaper - beauty I’ll have 2
Johan, I wasn’t trying to have in my previous post, just being silly. Appreciate the new Signature will be a step-up both in SQ & costing (off course they both go hand-in-hand).
with regard to the lower jitter clocks, what measurable improvement does this make to the jitter on the USB output data? I thought this was already very low to start with?
Correct, that will teach me to post just before bedtime (and I do have a Digione too)! @allo.com The question still stands, with regard to the lower jitter clocks, what measurable improvement does this make to the jitter on the SPDIF output data? I thought this was already very low to start with?
Yup it was already low but lower is always nice too
This might be more important with an SPDIF source than USB - unless you have an Ayre QX-5 Twenty: “Ayre has a patent-pending method to create an asynchronous S/PDIF input stage that works with any audio transport and doesn’t require a proprietary system with an extra clock signal.”
Just trying to work out what to upgrade to improve things. Currently, Digione feeds a Chord Mojo and I understood that Chord DACs were asynchronous and therefore immune to expected jitter levels. No point improving the source jitter under these circumstances.
We are measuring less than 400fs of jitter on the buffer.
However every noise measured on the system has come down. Every buffer , flip flop noise is now measured in uV instead of mV.
I am very confident that in most systems you will hear a difference.
Also note that now DigiOne is made out of 2 boards , one is for “dirty side” and one for “clean side”. In fact we increase the size of the PCB about 220%
With all the extra space we were able to add lots of capacitance, filters etc that make the noise in every rail to decrease . (in some cases dramatically )
At last , using batteries you are making the “clean side” galvanically isolated from the mains. That can make big difference for some systems