The Best DAC is no DAC

[jims]

Hazard500: flip-flop x1
Supra: single-ended x1
Stijn001: flip-flop x1
dwjames: single-ended x1
ichiban: single-ended x1
PJotr25: flip-flop x1
Pegasus21: flip-flop x1
skrstic: flip-flop x1
Snicklefritzz: please specify type required
flowerpot: flip-flop x 1
Umarcus: balanced x 2
Giulio: flip-flop x 1
Caad: balanced x 2
randytsuch:balanced x 1
deanoUK balanced x 1 SE x 1
Vdi_nenna: single-ended X 2
merlin el mago: single-ended x 2
Nikola Krivorov: single ended Х1
pgour : Flip_Flop x 1 + SE x 1
ligascon: balanced x 1 SE x 1
matejS: single-ended x 1
analog_sa: balanced x 1 SE x 1
lukaluka: flip-flop x 1
xaled: single-ended x 3
Anjump123: Single-ended X 2
asanden: balanced x 1 + SE x 1
whmok: single-ended x 2
JimS: balanced X1, single-ended X2

 

[flowerpot]

Hazard500: flip-flop x1
Supra: single-ended x1
Stijn001: flip-flop x1
dwjames: single-ended x1
ichiban: single-ended x1
PJotr25: flip-flop x1
Pegasus21: flip-flop x1
skrstic: flip-flop x1
Snicklefritzz: please specify type required
flowerpot: flip-flop x 2
Umarcus: balanced x 2
Giulio: flip-flop x 1
Caad: balanced x 2
randytsuch:balanced x 1
deanoUK balanced x 1 SE x 1
Vdi_nenna: single-ended X 2
merlin el mago: single-ended x 2
Nikola Krivorov: single ended Х1
pgour : Flip_Flop x 1 + SE x 1
ligascon: balanced x 1 SE x 1
matejS: single-ended x 1
analog_sa: balanced x 1 SE x 1
lukaluka: flip-flop x 1
xaled: single-ended x 3
Anjump123: Single-ended X 2
asanden: balanced x 1 + SE x 1
whmok: single-ended x 2
JimS: balanced X1, single-ended X2

 

[guglielmope]

Hazard500: flip-flop x1
Supra: single-ended x1
Stijn001: flip-flop x1
dwjames: single-ended x1
ichiban: single-ended x1
PJotr25: flip-flop x1
Pegasus21: flip-flop x1
skrstic: flip-flop x1
Snicklefritzz: please specify type required
flowerpot: flip-flop x 2
Umarcus: balanced x 2
Giulio: flip-flop x 1
Caad: balanced x 2
randytsuch:balanced x 1
deanoUK balanced x 1 SE x 1
Vdi_nenna: single-ended X 2
merlin el mago: single-ended x 2
Nikola Krivorov: single ended Х1
pgour : Flip_Flop x 1 + SE x 1
ligascon: balanced x 1 SE x 1
matejS: single-ended x 1
analog_sa: balanced x 1 SE x 1
lukaluka: flip-flop x 1
xaled: single-ended x 3
Anjump123: Single-ended X 2
asanden: balanced x 1 + SE x 1
whmok: single-ended x 2
JimS: balanced X1, single-ended X2
Guglielmope: balanced X1, single-ended X2

 

[iestynrw]

Hazard500: flip-flop x1
Supra: single-ended x1
Stijn001: flip-flop x1
dwjames: single-ended x1
ichiban: single-ended x1
PJotr25: flip-flop x1
Pegasus21: flip-flop x1
skrstic: flip-flop x1
Snicklefritzz: please specify type required
flowerpot: flip-flop x 2
Umarcus: balanced x 2
Giulio: flip-flop x 1
Caad: balanced x 2
randytsuch:balanced x 1
deanoUK balanced x 1 SE x 1
Vdi_nenna: single-ended X 2
merlin el mago: single-ended x 2
Nikola Krivorov: single ended Х1
pgour : Flip_Flop x 1 + SE x 1
ligascon: balanced x 1 SE x 1
matejS: single-ended x 1
analog_sa: balanced x 1 SE x 1
lukaluka: flip-flop x 1
xaled: single-ended x 3
Anjump123: Single-ended X 2
asanden: balanced x 1 + SE x 1
whmok: single-ended x 2
JimS: balanced X1, single-ended X2
Guglielmope: balanced X1, single-ended X2
iestynrw: balanced x1

 

[merlin el mago]

I had a small packet arrive today...

An externally hosted image should be here but it was not working when we last tested it.

...the first batch of the revised single-ended boards.

I'm aiming to make one of these up and test it over the coming weekend.

Also, the parts I'm waiting for to finish the flip-flop prototype are now on the way so I should be able to get that tested next week too.

Ray

Ray is possible to buy the B.O.M togheter the pcb?

Regards
Felipe

Ray is possible?

 

[nautibuoy]

I've got a heavy cold so haven't felt like making as much progress as I had planned. I have managed to assemble one of the new SE boards but haven't installed it into my prototype project to test and audition it; hopefully in a day or so.

An externally hosted image should be here but it was not working when we last tested it.

Ray is possible to buy the B.O.M togheter the pcb?

Regards
Felipe

I have been pondering the question of PCBs or kits. Everything needed to build one of these projects is easy to obtain and I don't really want to spend my time putting kits together so I think I'll just supply PCBs. I hope that isn't too much of a disappointment.

As you can see from the pictures, the PCBs are largely self documenting, with part numbers and values printed on the PCB wherever possible. I'm working on a separate BOM and some assembly notes for each of the boards.

Ray

 

[torb]

Hazard500: flip-flop x1
Supra: single-ended x1
Stijn001: flip-flop x1
dwjames: single-ended x1
ichiban: single-ended x1
PJotr25: flip-flop x1
Pegasus21: flip-flop x1
skrstic: flip-flop x1
Snicklefritzz: please specify type required
flowerpot: flip-flop x 2
Umarcus: balanced x 2
Giulio: flip-flop x 1
Caad: balanced x 2
randytsuch:balanced x 1
deanoUK balanced x 1 SE x 1
Vdi_nenna: single-ended X 2
merlin el mago: single-ended x 2
Nikola Krivorov: single ended Х1
pgour : Flip_Flop x 1 + SE x 1
ligascon: balanced x 1 SE x 1
matejS: single-ended x 1
analog_sa: balanced x 1 SE x 1
lukaluka: flip-flop x 1
xaled: single-ended x 3
Anjump123: Single-ended X 2
asanden: balanced x 1 + SE x 1
whmok: single-ended x 2
JimS: balanced X1, single-ended X2
Guglielmope: balanced X1, single-ended X2
iestynrw: balanced x1
torb: balanced x2

 

[Snicklefritzz]

Hazard500: flip-flop x1
Supra: single-ended x1
Stijn001: flip-flop x1
dwjames: single-ended x1
ichiban: single-ended x1
PJotr25: flip-flop x1
Pegasus21: flip-flop x1
skrstic: flip-flop x1
Snicklefritzz: balanced x 1
flowerpot: flip-flop x 2
Umarcus: balanced x 2
Giulio: flip-flop x 1
Caad: balanced x 2
randytsuch:balanced x 1
deanoUK balanced x 1 SE x 1
Vdi_nenna: single-ended X 2
merlin el mago: single-ended x 2
Nikola Krivorov: single ended Х1
pgour : Flip_Flop x 1 + SE x 1
ligascon: balanced x 1 SE x 1
matejS: single-ended x 1
analog_sa: balanced x 1 SE x 1
lukaluka: flip-flop x 1
xaled: single-ended x 3
Anjump123: Single-ended X 2
asanden: balanced x 1 + SE x 1
whmok: single-ended x 2
JimS: balanced X1, single-ended X2
Guglielmope: balanced X1, single-ended X2
iestynrw: balanced x1
torb: balanced x2

 

[leon77]

hi all, I would to build this nodac, but I didn't read the entire the thread. Is possible to do an synthesis with all componets that I needed for the nodac? thanks in advance

 

[leon77]

is there anybody that can help me ? which usb/is2 interface have to buy between Amanero , jlsound , diyinhk ? So, do you have also pcb with dsd filter and muting circuit ? and the output, better audio trasformer or else?

Please help me, thanks in advance
Best Regard
Emilio

 

[leon77]

after to be was entire night to read this thread, maybe I have understood that I needed to build my nodac. So, the muting circuit and lp filter are an only circuit board, that has name Single-Ended.
But the flip-flop, isn't clear, It to use only for balanced output or is there another way?

 

[leon77]

My summary that I have need: the Jlsound with its isolator, then muting circuit and lp filter for only single ended output. But if I want to use also a buffer or gain, for example an output trasformer or tube buffer, I must to consider also another diy pcb (flip-flop or else)?

 

[Dimdim]

Hazard500: flip-flop x1
Supra: single-ended x1
Stijn001: flip-flop x1
dwjames: single-ended x1
ichiban: single-ended x1
PJotr25: flip-flop x1
Pegasus21: flip-flop x1
skrstic: flip-flop x1
Snicklefritzz: balanced x 1
flowerpot: flip-flop x 2
Umarcus: balanced x 2
Giulio: flip-flop x 1
Caad: balanced x 2
randytsuch:balanced x 1
deanoUK balanced x 1 SE x 1
Vdi_nenna: single-ended X 2
merlin el mago: single-ended x 2
Nikola Krivorov: single ended Х1
pgour : Flip_Flop x 1 + SE x 1
ligascon: balanced x 1 SE x 1
matejS: single-ended x 1
analog_sa: balanced x 1 SE x 1
lukaluka: flip-flop x 1
xaled: single-ended x 3
Anjump123: Single-ended X 2
asanden: balanced x 1 + SE x 1
whmok: single-ended x 2
JimS: balanced X1, single-ended X2
Guglielmope: balanced X1, single-ended X2
iestynrw: balanced x1
torb: balanced x2
Dimdim: balanced x 1

 

[nautibuoy]

My summary that I have need: the Jlsound with its isolator, then muting circuit and lp filter for only single ended output. But if I want to use also a buffer or gain, for example an output trasformer or tube buffer, I must to consider also another diy pcb (flip-flop or else)?

Almost...

The single-ended board just provides a single-ended output, which you can feed into a suitable SE buffer if you wish. That's what I did with my initial build: JLSounds >> LP filter >> JG Buffer.

The flip-flop board provides a balanced differential output for use with transformers (as with Hazard500's build) or a buffer that accepts a balanced input. I'm close to completing a project that uses a flip-flop board to feed a Broskie BCF tube buffer.

Muting is needed in either scenario.

Hope that helps.

Ray

 

[leon77]

Hazard500: flip-flop x1
Supra: single-ended x1
Stijn001: flip-flop x1
dwjames: single-ended x1
ichiban: single-ended x1
PJotr25: flip-flop x1
Pegasus21: flip-flop x1
skrstic: flip-flop x1
Snicklefritzz: balanced x 1
flowerpot: flip-flop x 2
Umarcus: balanced x 2
Giulio: flip-flop x 1
Caad: balanced x 2
randytsuch:balanced x 1
deanoUK balanced x 1 SE x 1
Vdi_nenna: single-ended X 2
merlin el mago: single-ended x 2
Nikola Krivorov: single ended Х1
pgour : Flip_Flop x 1 + SE x 1
ligascon: balanced x 1 SE x 1
matejS: single-ended x 1
analog_sa: balanced x 1 SE x 1
lukaluka: flip-flop x 1
xaled: single-ended x 3
Anjump123: Single-ended X 2
asanden: balanced x 1 + SE x 1
whmok: single-ended x 2
JimS: balanced X1, single-ended X2
Guglielmope: balanced X1, single-ended X2
iestynrw: balanced x1
torb: balanced x2
Dimdim: balanced x 1
Leon77 : Balanced x 2, Single-Ended x 2

 

[jborden]

Hazard500: flip-flop x1
Supra: single-ended x1
Stijn001: flip-flop x1
dwjames: single-ended x1
ichiban: single-ended x1
PJotr25: flip-flop x1
Pegasus21: flip-flop x1
skrstic: flip-flop x1
Snicklefritzz: balanced x 1
flowerpot: flip-flop x 2
Umarcus: balanced x 2
Giulio: flip-flop x 1
Caad: balanced x 2
randytsuch:balanced x 1
deanoUK balanced x 1 SE x 1
Vdi_nenna: single-ended X 2
merlin el mago: single-ended x 2
Nikola Krivorov: single ended Х1
pgour : Flip_Flop x 1 + SE x 1
ligascon: balanced x 1 SE x 1
matejS: single-ended x 1
analog_sa: balanced x 1 SE x 1
lukaluka: flip-flop x 1
xaled: single-ended x 3
Anjump123: Single-ended X 2
asanden: balanced x 1 + SE x 1
whmok: single-ended x 2
JimS: balanced X1, single-ended X2
Guglielmope: balanced X1, single-ended X2
iestynrw: balanced x1
torb: balanced x2
Dimdim: balanced x 1
Leon77 : Balanced x 2, Single-Ended x 2
jborden: Balanced x 2

 

[RushBattle]

Almost...

The single-ended board just provides a single-ended output, which you can feed into a suitable SE buffer if you wish. That's what I did with my initial build: JLSounds >> LP filter >> JG Buffer.

The flip-flop board provides a balanced differential output for use with transformers (as with Hazard500's build) or a buffer that accepts a balanced input. I'm close to completing a project that uses a flip-flop board to feed a Broskie BCF tube buffer.

Muting is needed in either scenario.

Hope that helps.

Ray

This is very interesting, as I was going to use a BCF following the flip flop boards as well. Can you give any more details?

I may have missed it despite my reading this thread twice, what is the output voltage of the flip flop boards? Thanks for doing this work!

 

[dwjames]

Please can someone link again to the calculation for cap and resistor values for the lp filter, it seems to be hiding from me..

 

[nautibuoy]

Please can someone link again to the calculation for cap and resistor values for the lp filter, it seems to be hiding from me..

I don't recall anything about a calculator here James. I have a copy of this software;

TCJ Filter Design - Download

I can do a calculation if you need.

Ray

 

[dwjames]

Thanks Ray, I think it was a link to the formula for working it out rather than a calculator per se, but if you have a simple method that would be great

My amps have a 50k input impedance, but I guess if it's simple and you could work it out for 10k 50k and 100k others would likely find that useful.
Thanks,
James