It Works ! - Sony UBP-X1000ES HDMI "Audio" output to Chinese I2S Adapter Board to DS Sr. I2S Input

A couple of questions:

  1. For multichannel, how do you manage volume adjustment when the fronts aren’t managed by your AVR?

  2. Since you use an external power supply for the board, did you mask the 5V lead in the HDMI to prevent the DS from ‘seeing’ it?

I want to order one to have a go myself. Thanks for the tip :slightly_smiling_face:

Update :

The board is awesome on SACD’s/DSD files but sucks on PCM (I keep the S/PDIF and USB inputs on the DS Sr. for that).

I run the front L/R with the DS SR.'s Volume Control. The Center and Surrounds have independent Digital Pots courtesy of the MiniDSP’s that I use to EQ all five Sealed Box Bose 901’s.

The L/R MiniDSP has I2S outputs that I want to connect to I2S Input #2 one of these days thereby bypassing the 48/24 DAC that currently feeds M700’s. Funny thing is improvements made by the DS Sr.'s XLR out’s feeding the MiniDSP are then going through the MiniDSP’s DAC are clearly heard. I’ll post a diagram of my system soon on the Systems Diagram Topic page.

‘… sucks on PCM’ : Have you read this thread?–> Getting Oppo DSD output to the DS via I2S. In the beginning of that thread they discuss a board that looks identical to yours, and later in the thread (before post 114) they seem to solve the problems regarding PCM.

Regarding MiniDSP being transparent to the DS analog signal quality: I experience the same with my Lyngdorf preamplifier/crossover filter/room correction unit - the extra AD DA conversion seems to do very little harm to the DS signal.

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I never masked off the pins for the 5V from my Sony’s HDMI and it works great. I’m assuming that the Chinese Adapter board internally switches off the HDMI 5V when it senses that an external 5V supply is used.

FWIW posts 197 - 206 in the thread I mentioned talks about blanking off pin 18 to prevent the 5V, and one says it improved the SQ. May be the board they sell now is improved (?)

I’m going to try that with back to back HDMI to 20 pin. 2.54mm pitch adapter boards I have. I just won’t connect pin 18. Would have tried it tonight but I didn’t have any header strips laying around :angry:.

Your effort is highly appreciated. I’m showing some images from the other thread here for our convenience. You can also skip connecting pin 15 to prevent the pre-emphasis/de-emphasis signalling that worsens SQ from PCM sound tracks.

And then there are some settings in the Sony that probably needs to correspond to the ones given by this post: Post 115.

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Thanks Standahm1. Got everything working as per the the Post from the other I2S Forum Topic. Thanks for heading me that way.

PCM still sounds like crap but the Coax input will do for now. I’ll try the Pin 15 mask over once I order more HDMI breakout boards (I messed the exiting ones up - oops).


I have a Sony UBP-X800 myself so I’m a bit curious if you were able to find corresponding settings in your X1000 to the Oppo settings in the other thread?

Exact same setup. Don’t even worry about the 5V disabling either. Simply plug in the “BigBoard” into the HDMI “Audio Only” and keep your regular Video HDMI connected to your AVR/TV Set so you can see watch/stream content. From the 6 Pin I2S Out of the big board, wire it to the 6 pins of the I2S in of the “Little Board” and make sure you do the pin swap for the L & R channels. It was super easy and not too much of a “Klugdefest” going on behind the Player. I masked pin 15 and the Sony no likey.

Get this to interconnect the “big Board” to your Sony X800

No need for a Disc Transport since the X800/X100ES does the job and quite well to my ears. Now you can Stream Netflix/Amazon/Hulu in Stereo via the DSD Sr. Overkill but it’a becasue we can…LOL.

I also use the onboard DLNA/Windows Media Player USB’d to my HTPC/Music Server to access all my PCM files, Concerts, Movies, etc via the Ethernet connector. DSD files are via USB (Audirvana) , SACD discs, or the USB ports of either my Sony X1000 or my Sony STR-DN1080

Thanks again for your help.

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Ok, I think I’m good to go order me some items. Thanks!

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I have a Sony X800M2 and a Sabaj D5 DAC. After I removed R47 from the green board Sabaj become unable to show the real sample rate. When I added the blue board I get a lot of noise. I have noticed that on my green board R35 is missing by default. Any suggestion? Thank you!

I have a concern about this product:) The product has a single 24MHz oscillator that is typically not associated with proper 44.1 or 48 kHz PCM conversion to i2s. For proper conversion from these sample rate families you need 22.5792MHz and 24.576MHz oscillators. As such, these boards will cause jitter at their output. Anyway, if they can update the design it would be a nice product.

My board is an older revision. The new boards have the HDMI in & out swapped. I friend of mine bought the new boards and I did the mods before I found out that the resistor removal was no longer necessary. DSD works great on both the reversed the not reversed outputs (blue board) but no PCM output I think because I incorrectly removed the resistor. But it only worked so far with the PS Audio DirectStream Sr. & Denafrips Terminator DAC’s. It did not work with my friends LKS DAC at all. Same noise problems as you are experiencing with the Sabaj D35

Fair enough but then why does it work flawlessly on two different DAC’s ? (please see my response below).

I’m not commenting on the DAC issue…just the board itself.

I don’t know the board but there are pretty good quality fractional multiply/fractional divide clock converters/generators from multiple vendors (TI, SiLabs, IDT, …). You only need +/- 100ppm accuracy so you probably don’t need the more expensive versions which have ridiculously accurate conversions. (You can also use a jitter cleaner…)
I liked the sound from an analog VCXO better than the more “accurate” digital synthesis when I implemented both years ago.


So am I correct to conclude that the Sony UBP-X800M2 -> to the I2S board-> to my Cocktail Audio X40 via Coax or Toslink is the trick to SACD audio? My research indicates so but perhaps a 2nd opinion before I convert my Canadian $ to yen…

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Sony HDMI 1 out ----> HDMI In (adapter board) ----> I2S Out (adapter board) —> I2S input of PS Audio DAC (Denafrips works too) but other DAC’s I2S inputs are a crapshoot - e.g LKS didn’t work). On the Sony, set the HDMI out to “Auto”


ha, you’ve reminded me of VXOs in my radio days - crystal osc being pulled a few kHz either way from its resonant frequency (by a capacitor o cross it if i recall? i’ll have to go look it up) in order to cover most of an amateur band with one expensive crystal :slight_smile:
before frequency synthesis made an appearance!