HDMI to IIS/Coax DoP Converter

[2.82 MHz]

I saw on another site that someone had trouble when he used a different power supply than the one that came with the unit.

Thank you, Dennis.
Though these boxes typically don‘t come with a PSU. Mine didn‘t.

 

[phofman]

But the suggestion is a good one - a failing PSU with slowly dropping voltage could cause issues like this. I would try a different PSU for comparison.

 

[2.82 MHz]

@Dennis_FL @phofman
Yes, you're right, forgot to write that, I will try if that makes a difference

 

[Dennis_FL]

Thank you, Dennis.
Though these boxes typically don‘t come with a PSU. Mine didn‘t.

I have this one (looks similar but no HDMI) and it came with a PS. One of the commenters in the review section changed his zero star to 5 stars after the tech support convinced him to use the original PS.

I just compared music from this adapter to the same music but direct from Roon and couldn’t tell the difference. Much better than I thought.

 

[2.82 MHz]

@Dennis_FL @phofman
Yes, you're right, forgot to write that, I will try if that makes a difference

It does make a difference - switched the no-name 5V / 2A USB PSU (like an iphone charger) for another no-name adjustable 3-24 V / max 6 A / max 144 W PSU (not targeted at battery charging) - et voilà!
happy camper again - thank you guys!!

 

[Kiko1974]

I got an inexpensive universal power supply from Amazon that works like a charm with this HDMI audio extractor. It can be configured to output V, 4,5 V, 5 V, 6 V, 7,5 V, 9 V, 12 V, 2 A, 30 W and never had a glitch with the combination of a Sony UBP X-800 M2, this HDMI audio extractor plus the power supply and an SMSL DO 300EX.
I own two versions of it, the I2S plus SPDIF DoP one and the cheapest unit that can only output DSD vía I2S which is the one I'm currently using as with my DO 300EX has no need for DoP.
As I said earlier on this thread, despite the SMSL DO 300EX has two ways to reduce jitter, one is its own clock (CK-03 I think It's called) and a second order PLL jitter reduction, and that none of them work with either the I2S and USB inputs, only with the S/PDIF and TosLink inputs, I prefer the sound of the I2S output/input despite the jitter this HDMI audio extractor may induce.
The SMSL DO 300EX uses the AKM 4499EQ (it's a two IC's solution, one IC does oversampling and Delta Sigma modulation and the second one does the actual D/A convertion) that doesn't mention on its specs any means of jitter reduction, unlike ESS IC's that do tell they have a jitter rejection feature. AKM seems kind of secretive when disclosing the full specs of their D/A IC's unlike ESS.
I prefer with both versions of this HDMI audio extractor the sound of the AKM based DO 300EX to the sound of the ESS based DO 300. I've had them both at the same time connected to my set Up (Marantz PM 6007 integrated amp plus KEF Q-550 speakers) and the AKM DO 300EX sounds more natural and analogue-like that the ESS based DO 300 which sounded analytical and cold. And both of them sound equally resolving, getting plenty of detail out of my digital media (some think AKM chipsets sound warmer at the expense of detail and dinamics, that's not my experience) and very dinamic.
What I like from this HDMI audio extractor is that fills in a gap in an inexpensive way, and that is the capabilitiy of matching the SACD player/transport one wants with the D/A converter one chooses depending on budget or chipset preference.

 

[Kiko1974]

I have one question regarding this HDMI audio extractor. Up to what resolution is It able to pass from HDMI in to I2S out?
Has anybody tested it with DSD 128 and DSD 256?
The Sony UBP X-800 M2 is supposed to play Up to DSD 128, but when I try to play some DSD 128 files either from this HDMI audio extractor or straight to a friend's A/V receiver that can play up to DSD 256 via HDMI, the Sony UBP X-800 M2 plays DSD 128 files, but It outputs PCM 176.4/24 and not native DSD 128.

 

[ravichopra]

Hoping someone might be able to help. Running a BDP-83 to an Eversolo A6. Definitely have the more expensive DOP box via ebay with an ac power supply. When the Oppo is set to PCM out it works fine with the A6 showing PCM 88.2, music playing properly both over optical and coax. When I set it to DSD, the A6 shows it’s getting the DSD signal, music plays, but with intermittent pops and clicks over both optical and coax. Have tried 2 different ac power supplies and 3 HDMI cables with the same results.

Any thoughts? I have a message out to the seller, bit I’m outside the return window so who knows if they’ll respond…

 

[Stoutblock]

Hoping someone might be able to help. Running a BDP-83 to an Eversolo A6. Definitely have the more expensive DOP box via ebay with an ac power supply. When the Oppo is set to PCM out it works fine with the A6 showing PCM 88.2, music playing properly both over optical and coax. When I set it to DSD, the A6 shows it’s getting the DSD signal, music plays, but with intermittent pops and clicks over both optical and coax. Have tried 2 different ac power supplies and 3 HDMI cables with the same results.

Any thoughts? I have a message out to the seller, bit I’m outside the return window so who knows if they’ll respond…

If you are using HDMI between the BDP-83 and the box you should not need a power supply. You might try not using the PS. I assume the Eversolo accepts DOP?

 

[Kiko1974]

Hoping someone might be able to help. Running a BDP-83 to an Eversolo A6. Definitely have the more expensive DOP box via ebay with an ac power supply. When the Oppo is set to PCM out it works fine with the A6 showing PCM 88.2, music playing properly both over optical and coax. When I set it to DSD, the A6 shows it’s getting the DSD signal, music plays, but with intermittent pops and clicks over both optical and coax. Have tried 2 different ac power supplies and 3 HDMI cables with the same results.

Any thoughts? I have a message out to the seller, bit I’m outside the return window so who knows if they’ll respond…

I recommend you to use a linear power supply instead of a cheaper switch one. I have both the I²S only (for DSD) and the more expensive DoP one and both sound better using an inexpensive linear power supply (around 55 €) I got from AliExpress.
This HDMI audio extractor IS not very power demanding It needs 5 Volts and 1 mAh (my measurements using an inexpensive USB multimeter shows 5 Volts and 0.8 mAh), so the linear power supply I got, that outputs 5 Volts and Up to 3 mAh is more than enough. It works like a charm and believe me, It makes/gets an audible difference.

 

[Dennis_FL]

Hoping someone might be able to help. Running a BDP-83 to an Eversolo A6. Definitely have the more expensive DOP box via ebay with an ac power supply. When the Oppo is set to PCM out it works fine with the A6 showing PCM 88.2, music playing properly both over optical and coax. When I set it to DSD, the A6 shows it’s getting the DSD signal, music plays, but with intermittent pops and clicks over both optical and coax. Have tried 2 different ac power supplies and 3 HDMI cables with the same results.

Any thoughts? I have a message out to the seller, bit I’m outside the return window so who knows if they’ll respond…

You can get DSD out of an Oppo? I didn't know that.

 

[linger63]

You can get DSD out of an Oppo? I didn't know that.

Only via HDMI out.

 

[ravichopra]

If you are using HDMI between the BDP-83 and the box you should not need a power supply. You might try not using the PS. I assume the Eversolo accepts DOP?

It does.

 

[Stoutblock]

It does.

Did you try not using any PS with the box?

 

[lyramax]

What is the polarity of the 5V power connector?

TIA.

 

[ravichopra]

Did you try not using any PS with the box?

I did. Same results. Seems the issue may in fact be with the default settings in the Eversolo A6 DAC.

 

[Stoutblock]

I did. Same results. Seems the issue may in fact be with the default settings in the Eversolo A6 DAC.

You have the Oppo connected to the box with HDMI (short cable better) and the box connected to the A6 with coax (for DOP)? I assume the A6 does DOP?

 

[ravichopra]

You have the Oppo connected to the box with HDMI (short cable better) and the box connected to the A6 with coax (for DOP)? I assume the A6 does DOP?

Yes, short cable, have tried both coax and optical with the same results. Yes, the A6 supports DoP, albeit with significant flaws.

 

[lyramax]

What is the polarity of the 5V power connector?

TIA.

In case there will be others who look for answer to the same question above -- the 5V (5.5/2.1mm) connector's barrel is negative.

Also, none of my USB wall plugs that I have on hand for charging phones/tablets and are rated 5V/2A or 3A would work -- there would be zero sound or intermittent cut-outs. I only succeeded when using a HOSA multi-voltage power adapter with its output voltage set to 6V.

 

[lyramax]

In case there will be others who look for answer to the same question above -- the 5V (5.5/2.1mm) connector's barrel is negative.

Also, none of my USB wall plugs that I have on hand for charging phones/tablets and are rated 5V/2A or 3A would work -- there would be zero sound or intermittent cut-outs. I only succeeded when using a HOSA multi-voltage power adapter with its output voltage set to 6V.

Using a USB digital tester to measure the power drawn by the converter, the voltage is a bit above 5V for the only one USB wall plug I was able to find that works and closer to 5V or slightly below for those wall plugs that do not work.