even i play some 56k~128k online radio, sound beautiful, amazing, 😈😈The DAC plays all possible musical genres like nothing. It works like a crisp Swiss watch. I don't know how PCM63P-K plays but this Y version is top-notch. No bugs - chopping or anything weird. This PCB is perfect. I have never heard such a vivid sound coming out of headphones.The smile does not leave my face. 😍![]()
all of them sound beautiful, all sound signature are nature, comfort, instrument full of shape, i cant describe that feeling, because its a feeling, like mikorist said, "The smile does not leave my face", mouth cape raises i dont know why........ 😈😈I would like to ask the difference on sound signature among AD1862, AD1865 and PCM63.
I think all of them sound beautiful.
How long can the i2s cables be? I was thinking of a 2 box solution, with the Toslink i2s in one box and the dac in another box, using with an xlr.
It is known that shorter is better for I2S. I had the opportunity to change the wiring in one DDDAC a couple of years ago. And there was a little more than 30cm of flat ribbon cable for the I2S connection. I could not change that because such a PCB layout was already done. And it worked well. I was comparing it with my DDDAC where that link is shorter than 10cm. And there was no big difference, nor did it cause problems in work. The USB/I2S board is WaveIO in both cases.
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Thanks for sharing your experience!It is known that shorter is better for I2S. I had the opportunity to change the wiring in one DDDAC a couple of years ago. And there was a little more than 30cm of flat ribbon cable for the I2S connection. I could not change that because such a PCB layout was already done. And it worked well. I was comparing it with my DDDAC where that link is shorter than 10cm. And there was no big difference, nor did it cause problems in work. The USB/I2S board is WaveIO in both cases.
this was what I was looking for!
I2S was invented to be short, i.e. inside cd players. The two box thing was a marketing trick to make you spend more monney then the I2S signal was multiplexed on a wire for that purpose. They didn't think at Philips Sony than people would change of dac chip and later diy with re splitting in three the I2S signals as the pro world did sometimes.
properly shielded 3 AES cable is certainly the best idea to swap I2S the frontend and the conversion if really needed for whatever bad reasons and will need here extra diy efforts. Longer length as said is jittery while some argue it doesn't matter too much with pcm chips. But jitter isn't the only problem. Better also not to cross and sandwich such signals between a jumper of a higher current and a ground plane.
Best bet : short less than 4 inch, uf-l or like properly grounded cable, in the same box. It was said before with layout example from member pictures in that thread so I am a fool to repeat.
properly shielded 3 AES cable is certainly the best idea to swap I2S the frontend and the conversion if really needed for whatever bad reasons and will need here extra diy efforts. Longer length as said is jittery while some argue it doesn't matter too much with pcm chips. But jitter isn't the only problem. Better also not to cross and sandwich such signals between a jumper of a higher current and a ground plane.
Best bet : short less than 4 inch, uf-l or like properly grounded cable, in the same box. It was said before with layout example from member pictures in that thread so I am a fool to repeat.
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Isolator (opt.) + TI differential driver + RJ45 to RJ45 + TI differential receiver + Isolator (opt.) and you could go longer. Sure, expensive and you need two PCB´s and dedicated supplies. But if that´s your requirements?!
JP
JP
There were diy modules with different names around: transporter, teleporter, etc, with the same idea using hdmi or rj45 cables, but all that added active parts and layout interactions worse things at the end, alas.
I2S signal over >10cm, even silver wire, nogo. u.fl, well, not a big fan. Best, shortest I2S routing on PCB.
PS: forget XLR connectors.
JP
PS: forget XLR connectors.
JP
I have 4-5cm all wires in DAC - if the wires from the transformers are not counted.
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Nice box mikorist. I found a tda141a marked 2Y but I wish it was for a pcm63. So I sent you two ninjas 🙂
curiousity pushs me to see more on the manual of JLsound I2Sover usb. Found the board is also able to provide dataL and dataR directly to PCM63. If do so, can it directly skip the shift registers and result to sound more beautiful?
so a guess
so a guess
guess only for ad1862, I may miss some good posts!Miro made a board where you can stack the JLSounds with the option to skip the registers.
I am not sure that JLsound I2Sover usb has shifters in of that speed and quality. It's too damn small.If do so, can it directly skip the shift registers and result to sound more beautiful?
And the sound of the PCM63 depends entirely on the shifters.
I have resistors of 0.1% on the shifters - Kemet capacitors - a separate PSU2 and transformer for it - the separation goes to the atoms of sound. The stereo effect goes into an infinite number of dimensions. It is unbelievably good..... 😍 😀
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I'm done... 🤓
Thanks to everyone for everything - especially @miro1360 - without him this would not be possible...

@happylistenning,
Just to say tje experiment is easily feasible for the ad1862 owners.
@mikorist , I am curious also because also the layout with the registers ask others trade offs...than also can lowish the rendue...trade offs trade offs...
Just to say tje experiment is easily feasible for the ad1862 owners.
@mikorist , I am curious also because also the layout with the registers ask others trade offs...than also can lowish the rendue...trade offs trade offs...
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