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EtherREGEN - Formal Video Imaging and Audio Review


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@DarqueKnight Dr. Smith:

Thank you so very much for your fascinating and comprehensive review of our EtherREGEN switch in your A/V system! 

While we have received numerous reports from around the world from users seeing visual improvement with the EtherREGEN in their video systems, your imaging report is the first photographic evidence to be put forth.

 

Of course it comes as no surprise to us that you also are enjoying the audible contributions of the EtherREGEN in your system. B|

Again, thank you for all the time and effort you put into this report.

 

Best wishes,

--Alex C.

 

P.S. You have a terrific system set up there. Clearly you have been at this game for many years! 9_9

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Awesome work!

 

 

PH SR7 > MacMini+Uptone MMK Mod > Audirvana 3.2 > re-clocked D-LInk switch/LPS1.1 > sMS-200Ultra/LPS1.2 > tX-USBUltra/PH SR7 > Chord BluDave > Focal Utopia(Norne Silver) or Voxativ 9.87/ Stereo REL G1 Mk II

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Nice report!

 

I could not help but noticing that you are using the Polk Audio SDA SRS 1.2TL (modified), not many seems to do that anymore.

 

 

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9 hours ago, Summit said:

Nice report!

 

I could not help but noticing that you are using the Polk Audio SDA SRS 1.2TL (modified), not many seems to do that anymore.

 

 

Yes. It is the lone survivor from my many equipment upgrades through the years. I have not been able to find a better imaging loudspeaker.

 

A summary of the modifications can be found here:

 

https://forum.polkaudio.com/discussion/148092/improvements-to-the-sda-srs-1-2tl-summary-of-modifications

 

 

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3 hours ago, DarqueKnight said:

I have the SE version. I did this modification in March 2019. Installation was easy. An installation guide was downloaded from the Oppomod website.

My immediate results with the Oppomod Linear Power Module Special Edition (LPM SE) were:

1. Brighter, clearer, more detailed picture, with better color rendition.
2. Sound was apparently much louder, due to the significantly lowered noise floor. I actually had to turn the volume of my home theater pre-pro down 4 dB.
3. More tactile sensation.
4. Sound stage size didn't change, but image weight increased significantly.
5. I notice more small details, both with video and audio.

 

528470767_Fig01-OppomodInstall-TopOff-s.jpg.fa5a2c0c10263574ef5adbda8b5fa5b7.jpg

Figure 1. The Oppomod LPMSE is a drop in replacement, but a fair amount of disassembly is required. First, the video output board must be removed.

 

166315090_Fig02-OppomodInstall-OutputBrdOut-s.jpg.20490ee0680247ddd42f68b0fce549d3.jpg

Figure 2. Next, the noise shield surrounding the switch mode power supply must be removed.

 

1448056446_Fig03-OppomodInstall-NoiseShieldOff-s.jpg.8864ebb84556351715a70df3fb56041f.jpg

Figure 3. The switch mode power supply board can then be removed.

 

1048577268_Fig04-OppomodInstall-SMPS-s.jpg.5b856b8d80bb05dfbc05b7dbf975e6db.jpg

Figure 4. Close up of switch mode power supply.

 

437119672_Fig05-OppomodLPMSEInstalled.jpg.fe51420ff9d85a76d23c6b8ce159c5b9.jpg

Figure 5. Oppomod LPM SE installed.

 

346236227_Fig06-OppomodLPMSE-StockSMPS.jpg.e02c76037f26f1714e7e87878bf0592a.jpg

Figure 6. Stock switch modes power supply on left, Oppomod LPM SE on right.

 

1992030190_Fig07-OppomodLPMSE.jpg.f36f477447809f31a2affd5fd3bafa3c.jpg

Figure 7. Close up of Oppomod LPM SE.

 

1356193481_Fig08-OppomodLPMSEUnderside-s.jpg.7f08cf2b63019dbf5425cc3e7e4f3e1e.jpg

Figure 8. Underside of Oppomod LPM SE.

 

867600028_Fig09-OppomodEyeBeforeAfter.jpg.c77f6882578be560321ed415c073c0ec.jpg

Figure 9. The reward. Better detail and color accuracy. Left - before mod. Right - after mod.

 

The screen captures in figure 9 were photographed with a Nikon D800 36.3 megapixel camera and Nikkor 24-70 zoom lens. The television was an LG 65" OLED, model OLED65E8PUA. The front of the camera lens was 42" from the TV screen. The camera was setup and the "before" picture was taken. The Oppo UDP-205 player was removed and modified, then reinstalled and the "after" picture was taken.

 

Oppomod LPM SE installation guide:

Oppo UDP-205 LPM Install Guide.pdf 799.61 kB · 0 downloads

Thanks! Appreciate the detailed response

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On 4/10/2020 at 9:16 PM, DarqueKnight said:

Figure 17. Pixel level pictures, side by side. Left to right: Amazon Cable Matters Cat6a, Blue Jeans Certified Cat6a, AudioQuest Cinnamon Cat7, AudioQuest Vodka Cat7, Revelation Audio Labs Prophecy CryoSilver Cat8+.

 

When you did this did you simply pause the video and swap out cables? If not how did you get to the exact same frame?

 

What jib had the camera locked in place? Were the pictures snapped on remote or actuated on body?

 

 

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43 minutes ago, pkane2001 said:

The photographs of the screen show a likely focus shift or possibly different frames, as well as, exposure differences that have nothing to do with ethernet. A more careful experiment is needed, with much better stabilization of the equipment (TV and camera), an exact frame fix, as well as completely fixed focus and exposure.

That's why I suggest a high resolution picture instead of video just as a start.

 

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7 hours ago, plissken said:

 

When you did this did you simply pause the video and swap out cables? If not how did you get to the exact same frame?

 

What jib had the camera locked in place? Were the pictures snapped on remote or actuated on body?

 

 

1. The video was restarted each time after a cable change and allowed to run to 01:01:14, then paused with the remote control. While still in pause mode, the fast forward button was pressed which cased the video to advance in slow motion at 1/16th speed. I held my breath beginning at 00:01:16 and and paused via the player's remote control as soon as the player's display timer changed to 00:01:17. The picture below was taken with my cell phone to give an idea of what the player's timer display looks like.

 

2. Since the UDP-205 player does not measure time in terms of frames, I had some concern about frame to frame variation with my manual stop method. I examined a series of photographs from from 00:01:16 to 00:01:18 to look for pixel level consistencies and variations in sharpness, blooming, black level, and detail. I was confident that my manual frame stops gave an accurate assessment of the picture quality changes in the different cable trials. Therefore, if my manual frame stops at 00:01:17 for the different trials weren't exact to the same nano-pico-femto second, they were close enough for the purposes of this exercise.

 

3. The camera was mounted on a Manfrotto BG468MGRC4 Ball Head camera mount. The Manfrotto ball head was mounted on a Slik AMT PRO700DX tripod.

 

4. The camera shutter was activated with a Nikon MC-30 cable release.

 

5. The lens autofocus was turned off. Focus, exposure, ISO, aperture, and shutter speed were set manually: All photos taken at f/3.2, ISO 1000. Room lights were turned off.

 

6. The rear of the OLED TV screen is braced against the rear wall with a cardboard tube. The brace is secured to the wall and to the TV with packing tape.

 

7. Photos were cropped using Corel Paint Shop Pro Photo X2 software.

 

1935810317_AlienCovenant-CellPhonePic-DisplayTimer-s.thumb.jpg.e8ebabfe52c9832009d4c9d376422582.jpg

7 hours ago, plissken said:

Why not do this with a 4K HDR photo?

 

Because I don't watch photographs. I watch movies.

 

6 hours ago, pkane2001 said:

 

 

The photographs of the screen show a likely focus shift or possibly different frames, as well as, exposure differences that have nothing to do with ethernet. A more careful experiment is needed, with much better stabilization of the equipment (TV and camera), an exact frame fix, as well as completely fixed focus and exposure.

 

All the Ethernet cable trial photos were taken at the same exposure and same fixed focus. See response to plissken above. In which photographs are you seeing a difference in focus?

 

5 hours ago, plissken said:

That's why I suggest a high resolution picture instead of video just as a start.

 

 

That would be an interesting exercise. Thanks for the suggestion.

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5 hours ago, DarqueKnight said:

All the Ethernet cable trial photos were taken at the same exposure and same fixed focus. See response to plissken above. In which photographs are you seeing a difference in focus?

 

This is comparing two photos used in Figure 11, Worst to best. As I said, possibly different frame, or frame in transition, not necessarily focus difference. Obvious exposure and color balance differences, though.

 

Quote

Figure 11. Worst to best: Left - Pixel level detail, NAS with stock switch mode power supply and Oppo player connected to wireless range extender. Right, NAS with TeraDak DC-200VA linear power supply and Oppo player connected to EtherREGEN with TeraDak DC-30 linear power supply. The overall result of using equipment with increasingly better electrical noise abatement was a picture with increasing detail, depth, sharpness, and color accuracy.

 

Make sure your browser can show loop GIF image animations and click on the image to see the larger version:

 

er.gif

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5 hours ago, DarqueKnight said:

Because I don't watch photographs. I watch movies.

 

But you posted photos's not videos....

 

Does your camera record videos like I've seen some others?

 

With a photo you don't have to guess what frame you are on. There is only one.

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40 minutes ago, pkane2001 said:

 

This is comparing two photos used in Figure 11, Worst to best. As I said, possibly different frame, or frame in transition, not necessarily focus difference. Obvious exposure and color balance differences, though.

 

 

Make sure your browser can show loop GIF image animations and click on the image to see the larger version:

 

 

 

There is no difference in exposure. The TV put out different amounts of light depending on the power supply attached to the NAS. The camera settings remained constant. The color balance also changed when the NAS's power supply was changed. All the pictures were cropped and then resized to the same size, so there are small aspect differences due to the cropping and resizing. That is why the two white flecks and the two eye lashes alternately move toward and away from each other in the circled portion of a screen capture from your looped video.

 

1458446434_Image002-Noted.thumb.jpg.9cfd3689fe661718aeb09595d5be117e.jpg

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31 minutes ago, plissken said:

 

But you posted photos's not videos....

 

Does your camera record videos like I've seen some others?

 

With a photo you don't have to guess what frame you are on. There is only one.

Yes, my Nikon D800 records high definition video.

 

You are correct that a static image alleviates guessing which frame to stop on. I could have also used some of the static test patterns from my Spears & Munsil UHD Benchmark calibration disc.

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7 minutes ago, DarqueKnight said:

 

There is no difference in exposure. The TV put out different amounts of light depending on the power supply attached to the NAS. The camera settings remained constant. The color balance also changed when the NAS's power supply was changed. All the pictures were cropped and then resized to the same size, so there are small aspect differences due to the cropping and resizing. That is why the two white flecks and the two eye lashes alternately move toward and away from each other in the circled portion of a screen capture from your looped video.

 

1458446434_Image002-Noted.thumb.jpg.9cfd3689fe661718aeb09595d5be117e.jpg

 

You are missing all the other parts of the eye moving and changing relative positions and sizes between the two shots. It's much more than the two flecks you circled.  These are just not comparable exposures. You need much better controls on your 'measuring' equipment before declaring that the reason for these differences is the ethernet switch. 

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6 minutes ago, pkane2001 said:

 

You are missing all the other parts of the eye moving and changing relative positions and sizes between the two shots. It's much more than the two flecks you circled.  These are just not comparable exposures. You need much better controls on your 'measuring' equipment before declaring that the reason for these differences is the ethernet switch. 

 

You missed my point with regard to my comment about the circled area.

Thank you for your advice and for sharing your opinions and insights.

 

3 minutes ago, plissken said:

Is the Oppo even capable of stopping on the same frame out of 60FPS with the remote control?

 

That would be a good question to ask Oppo. The player indicated that this movie's frame rate was 24FPS though.

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1 minute ago, DarqueKnight said:

That would be a good question to ask Oppo. The player indicated that this movie's frame rate was 24FPS though.

 

I couldn't find the frame rate in any packaging detail. A better way would be static images. A 2nd best way is Adobe Premier, and grab an H.264 encoded file and use it's Frame function.

 

Could also use AnyHD to strip the content protection and use HandBrake to copy your movie to H.264 and then import into Adobe Premier. That seems like a lot of work when you can again just use a static image. That's all a frame is anyways.

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1 minute ago, DarqueKnight said:

 

You missed my point with regard to my comment about the circled area.

Thank you for your advice and for sharing your opinions and insights.

56 minutes ago, DarqueKnight said:

All the pictures were cropped and then resized to the same size, so there are small aspect differences due to the cropping and resizing. That is why the two white flecks and the two eye lashes alternately move toward and away from each other in the circled portion of a screen capture from your looped video.

 

No. Resizing an image, doesn't warp it. The two images are warped in relation to each other. These are most likely different frames, or less likely the result of a focus or focal length shift. 

 

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