Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter

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#12,423
Hello all

I would like to request some assistance from this very experienced forum regarding the Amanero & Ian Canada's ReceiverPI DDC.

The proposed stack would be Amanero Combo384 / ReceiverPi DDC -> FiFoPiQ7 -> HDMIPiPro and this would then feed a Gustard R26. My intention is to be able to stream DSD256 to the R26 via HQPlayer. I would not be using a Raspberry PI in this set-up.

My question is this. Can the Amanero Combo384 accept DSD256 if I am connecting it to HQPlayer running on Ubuntu? The documentation for the Amanero Combo384 seems to indicate that it can only do DSD256 using the ASIO driver and this, in turn, means I would need to run HQPlayer on Windows rather than Ubuntu.

@iancanada - would you be able to advise please? Now that you are the official distributor of the Amanero in North America, I am hoping that you can clarify, please?
 
#12,424
elamar said:
Total newbie here trying to stream the fifopi q7 into my Gustard r 26. Everything works well except I can't get the r26 to accept the fifopi's clocks since it always says ext err on the led screen. I get sound but must revert to the r26 clocks instead to eliminate the err. I've tried every imaginable setting option on both the r26 and thru the monitor controller on the streamer. Has anybody experienced the same issues?
Click to expand...
Hello @elamar

What you are trying to do is not possible with the FiFoPI Q7 & the R26.

In order to use an external clock with the R26 you need to connect an external clock via the socket on the back of the R26 that is labelled "10Mhz In" (something like a Gustard C16 clock unit).

The R26 will not accept the I2S output from the FiFoPI Q7 / HDMIPiPro as an external clock signal.

The reason you get the "ext err" on the R26 is because you have no clock attached to the "10Mhz In" socket on the back of the R26.
 
#12,425
iancanada said:
Upgrading Gustard R26 sound quality by external re-clock streamer DDC and compared with a Holo Spring3 side-by-side
Click to expand...
Hello @iancanada - thank you very much for your input on the R26 vs the Holo Spring using your DDC stack. This is really useful. I have a R26 and was considering replacing it with a Holo Spring - but now I think I will reconsider.

Couple of questions please:

  1. What DSD did you stream to the R26? Was it DSD64, DSD128 or DSD256?
  2. Were you using HQPlayer for purposes of producing the DSD Stream?

Thanks
 
#12,426
elamar said:
Total newbie here trying to stream the fifopi q7 into my Gustard r 26. Everything works well except I can't get the r26 to accept the fifopi's clocks since it always says ext err on the led screen. I get sound but must revert to the r26 clocks instead to eliminate the err. I've tried every imaginable setting option on both the r26 and thru the monitor controller on the streamer. Has anybody experienced the same issues?
Click to expand...
@elamar

I think I know the reason of you issue now.
You could have set the REF CLOCK to EXT, however the EXT means the external 10MHz reference clock for PLL, not the clock from HDMI cable.

Solution: Please set the REF CLOCK to INT, the error message will be gone. And R26 will take clock from I2S/DSD over HDMI input, the internal PLL will be disabled.
Confirmed on my own R26.

Regards,
Ian
 
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#12,429
sa3999 said:
Hello @elamar

What you are trying to do is not possible with the FiFoPI Q7 & the R26.

In order to use an external clock with the R26 you need to connect an external clock via the socket on the back of the R26 that is labelled "10Mhz In" (something like a Gustard C16 clock unit).

The R26 will not accept the I2S output from the FiFoPI Q7 / HDMIPiPro as an external clock signal.

The reason you get the "ext err" on the R26 is because you have no clock attached to the "10Mhz In" socket on the back of the R26.
Click to expand...

R26 PLL only applies to USB or LAN input, when input from HDMI, COXO, OPT, or NOS, the PLL function will be off and the clock from music sources will be used.
https://shenzhenaudio.com/products/...oth-xmos-xu216-high-performance-audio-decoder
 
#12,430
iancanada said:
@badd99

That's an good question.
I've tried many R-2R DACs, with many different kinds of upgrade...., but I still prefer my fully equipped dual mono ESS DAC a bit more over them. Similar to your experiences?

Hopefully I will post the details soon.

Ian
Click to expand...
It's hard to beat sc pure FIFO ess dual mono active i/v when everything is running on ucpures, basically the best power supply in the world.

Now an Ian Canada designed r2r DSD 1bit dac board to go with our stack, that will be something!!
 
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#12,434
sa3999 said:
Hello all

I would like to request some assistance from this very experienced forum regarding the Amanero & Ian Canada's ReceiverPI DDC.

The proposed stack would be Amanero Combo384 / ReceiverPi DDC -> FiFoPiQ7 -> HDMIPiPro and this would then feed a Gustard R26. My intention is to be able to stream DSD256 to the R26 via HQPlayer. I would not be using a Raspberry PI in this set-up.

My question is this. Can the Amanero Combo384 accept DSD256 if I am connecting it to HQPlayer running on Ubuntu? The documentation for the Amanero Combo384 seems to indicate that it can only do DSD256 using the ASIO driver and this, in turn, means I would need to run HQPlayer on Windows rather than Ubuntu.

@iancanada - would you be able to advise please? Now that you are the official distributor of the Amanero in North America, I am hoping that you can clarify, please?
Click to expand...
@iancanada - could you please come back to me on the question about the maximum DSD rate that the Amanero Combo384 can achieve with Linux vs Windows?

Many thanks
 
#12,438
NeoTheOne said:
@Gabster 2000 great video as always! I have a few questions about this circuit
View attachment 1301653

What is the purpose of the relay here? As a noob I did some research and it seems a relay is simply another form of a switch. Is the goal here to soften the inrush current of the toroid transformers? In which case we would need a soft-start circuit?
Click to expand...
@Gabster 2000 it looks like I'll be feeding my dac build with two UCPure and three LifePO4 Mini 3.3V . I'm keeping the AC transformers in one case and the DAC in the other just like yours. I noticed you used a DB15 cable to connect the two chassis together. What gauge wire did you use? The biggest I could find is 20 AWG shielded in a pre-made cable. I was worried that 20 AWG was to small. What gauge is your DB15 cable?
 
#12,439
pkonstantinidis said:
@Trebtek @Gabster 2000 I also have a pretty high tech version of Ian Canada's streamer, including PureStationPi Pro, two LinearPi, three UCconditioners, a FifoPi Q7 and TransportPi AES. It works extremely well with my R2R NOS Lab12 DAC. However, I was curious about the ProtoDAC and I am going to test it against my Lab12 DAC. I am not yet sure where I can place the ProtoDAC inside the streamer box, because it's full with components, but I will sort something out. In terms of power supply, I am thinking of using my 'middle' UCconditioner 5V (see attached photo), which is currently powering the clean side of my StationPi Pro. So, that UCconditioner will hopefully power both the clean side of the StationPi Pro and the ProtoDAC. I hope that should work. Any comments, @hifiamps @Gabster 2000 ?

I also happened to watch Gabi's recent video about using three UFL cables to connect the ProtoDAC with the FifoPi Q7.
That's something I am considering. And if can have the three UFL connections of the FifoPi Q7 connected to the ProtoDAC and the MasterClock of the FifoPi connected to the TransportPi AES, I guess I will be able to run a direct (simultaneous) A-B comparison test between my ProtoDAC and my Lab12 DAC. That would be interesting...
Click to expand...
Is that a picture of a TDA 1541A DAC board? What one is that?
 
#12,440
Currently I connect my transformers directly to the mains. I am employing a wooden board and most likely will take some time porting the build to an enclosure. I want to add an IEC with fuse and switch, something like this. Would appreciate some help on how to install something like this on a wooden board? Are there some L shaped brackets that can be used (but this IEC won't work). Would really appreciate any suggestions.
 
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