I built Sheldon Stokes DAC a few years ago - and it's been performing well for a while.
Has anyone tried any of the clock upgrades - is it worthwhile?
Has anyone tried any of the clock upgrades - is it worthwhile?
Which is this DAC?? Is it the one with CS8412 + NPC5842 +2xPCM63 + Tube output?? If yes, there is no clock in it, the clock is generated by the 8412 chip so no clock upgrade can be done. You can try different output stages and/or psu regs though.
Sure you can. Why don't try a VCXO (tunable crystal oscillator) and a PLL. It may improve performance.
Guido, when are we going to be able to check some of the VCXO stuff on your web site?
Regards,
Extreme_Boky
Regards,
Extreme_Boky
Yes, it's the one with the CS8412 /NPC5842/2xPCM63/resistor i2v / Tube output.
I did quite a bit of work after I built it upgrading the obvious components - esp changing caps and resistors (the caps changed the sound a lot) as well as using linear technology regulators etc.
Any recommendations on which VCXO / PLL to try?
Any experiences with what this will do to the sound in this circuit (or something similar).
- Greg
I did quite a bit of work after I built it upgrading the obvious components - esp changing caps and resistors (the caps changed the sound a lot) as well as using linear technology regulators etc.
Any recommendations on which VCXO / PLL to try?
Any experiences with what this will do to the sound in this circuit (or something similar).
- Greg
Digital sources
I should have said my sources are a Meridian 500 CD transport and a Squeezebox (the v2 arrived today).
I think Meridian claim to have done some work on producing a good signal. I suspect the Squeezebox 1 isn't so good - although they've put some thought into it for the Squeezebox2,
I should have said my sources are a Meridian 500 CD transport and a Squeezebox (the v2 arrived today).
I think Meridian claim to have done some work on producing a good signal. I suspect the Squeezebox 1 isn't so good - although they've put some thought into it for the Squeezebox2,
Yes, I agree that VCXO and a PLL WILL improve the sound, Guidio Tent is the master of this 🙂
But this is relatively complicated circuit, will need extra PCB /If Guido Tent offers such circuits this will be quite easy/ and will lock to only 44.1kHz sources /basically/
So I do not call this clock upgrade but circuit upgrade, as this will make a new DAC version.
In such a case I would prefer feeding the transport CD player with the DAC clock, which will require mods/additional circuits for the CD transport.
Guido, I've thought about some automatic PLL/switch circuit for such a purpose, for inserting into Slave CD Transport, allowing the CD Transport to work without external clock input. Have you designed such circuit??? 🙂
😎 😉
But this is relatively complicated circuit, will need extra PCB /If Guido Tent offers such circuits this will be quite easy/ and will lock to only 44.1kHz sources /basically/
So I do not call this clock upgrade but circuit upgrade, as this will make a new DAC version.
In such a case I would prefer feeding the transport CD player with the DAC clock, which will require mods/additional circuits for the CD transport.
Guido, I've thought about some automatic PLL/switch circuit for such a purpose, for inserting into Slave CD Transport, allowing the CD Transport to work without external clock input. Have you designed such circuit??? 🙂
😎 😉- Status
- Not open for further replies.