A Very Useful New Discovery--EON Digital Filter from Network Acoustics


I've been on a year long quest to upgrade my stereo system, hopefully for the last time. As a senior "Luddite", I have been a late adopter of steaming capability. But now I'm converted. And just in time it apparently. In August 2020, DG released a new recording of all four Charles Ives Symphonies with the LA Phil and Dudemel conducting....with no CD format available!
Currently I'm listening to music through an Auralic G1 steamer/ Benchmark dac 3 DAC B into a newly built Audible Illusions Modulus 3B preamp and a Parasound A23+ power amp. CD's are played on an Audiolab 6000 transport into the Benchmark via Toslink. Speakers are Vanderstein Treo CT's. Oh there's still vinyl. I upgraded my trusty Well-Tempered TT with a Hana ML cartridge into a Sutherland Insight phono amp. Power supplies are a Furman PTS-8 with a Greenwave for devices switched on/off and an Audioquest 1200 for the devices left on, like the amp and the pre-amp. Everything is sounding really good (mostly acoustic jazz, Americana and Classical....lotsa acoustic piano).
I read on the 'Gon about a device from the U.K. called, EON from Network Acoustics. It is an EMI/RFI filtering device. We live on the Westside of LA. There's plenty of stray noise around. The one thing that worried me was the thirty foot run of contractor grade ethernet cable I was running from the office to the Auralic G1. I generally run mid-price cables, (Audioquest Carbon USB, Rocket 88 bi-wire speaker cables with DBS, Signal silver cables to the Sutherland, etc). Researching the EON, it seemed like this unit could be an asset, or at least save the money of 30 feet of Audioquest Cinnamon cable. And it was reasonably priced (under $500.00)!
I traded e-mails with Rich. He thought I would really like it but made two modest suggestions. He suggested that I add a D-Link DSG 1008G network switch (under $30.00)  and add a short link of good cable to the EON. (I ended up using the Audioquest Cinnamon ethernet). And he also suggested I pick up a IFI 5V power supply. ($50.00)
So.....what happened?
Suddenly the bass information, seemingly missing, was deep and powerful. I can actually feel the low bass strings on Christian McBride's acoustic bass pressing on my chest. And the percussive drive of Brian Blades drumming is being felt, not just implied. (Joshua Redman, Round Again, Nonesuch). The overall focus of everything is sharper. Like when you are tuning a guitar and the last little turn gets the top E string exactly right..... not just close. Brad Mehldau on, April 2020, sounds exactly like he is playing in my living room on a well cared for Steinway. Wow! Just Wow!!!!
I foolishly, but honestly, told my wife that I don't know to make this system sound any better.  I'm all done. Back to listening to music!
Important P.S The D-Link requires a male USB 2.0 Mini-B 5pin connector. Even though the IFI comes with many connector options, this isn't one of them. Nancy had one from an old I -Pad, keyboard connector.
mwgreene

Showing 7 responses by audio2design

One day @thyname will look in the mirror and realize this obsession and the posts like the one he made above say far more about him than they do about me. When you are trolling people on the web based on your personal conspiracy theories, time to do some personal evaluation.
The last business I sold the official company address was my house, which about 2/5th was converted to work space but most work was done remote. Everything was built at a CM, we would do QC there, and drop ship, and had a logistics/warehouse company inventory as needed. We did just a bit over $10M USD. HP started in a garage. So did Amazon. Not everything is funded by well heeled VCs.
So you of course, being a company, selling products have graphs of that 5MHz filtering?

Now which conduction mode is that 5MHz?


Doesn't this product claim to support 100MBPS Ethernet? That has a clock rate of 25Mbps and a recommended minimum bandwidth of 80MHz for proper operation. Can you please explain that 5MHz roll off?  That is way too low for 100MBPs Ethernet and way to high to be useful for power filtering.

As far as I can tell, this is the one and only thread the op has started or posted in ... flogging a product, and one of the people who makes that product is magically in this thread. Smells like an attempt at free advertising to me.
djones,

Some people don't like reality. Even though the reviewer on ASR's website has an actual business relationship with Lyngdorf, he still published a highly critical review of the unit. "Didn't understand it".  It is pretty difficult to not understand a crappy DAC, a really noise amplifier, and high near ultrasonic noise that could submodulate through speakers into the audio band.

It's not remotely state of the art, but then again, maybe amplification and DAC performance is not nearly as big an impact as many claim? Hmmmm...
The user can adjust settings for dither to minimize quantization errors, and also choose one of four settings for the Noise Shaper, which changes “linearity and noise characteristics in the audible range using digital feedback. The measurements are the same but the sound quality changes.”



Reviewer makes stuff up or just parrots manufacturers marketing sheet. Turn to page 34B for further details.

The measurements would absolutely not be the same.



nonoise6,669 posts01-14-2021 8:42pmI have no reason to contact Marantz.
You do.

All the best,
Nonoise


An honorable person would admit they were wrong and barking up the wrong tree.  It should have been obvious the measurements could not be the same. Marantz clearly in the manual states they are not the same. But as opposed to recognizing this, you try to make it look like you are the one in the right.  


Not much to say other than to quote your own posts. Djones showed quite clearly that yes, changing these setting absolutely will change the measurements. It is right there in the user manual. As opposed to acknowledging that, you are condescending to him. I have no face to save. I stated that there was no way it would measure the same. Djones did the leg work and proved that true.

There is nothing to address that the review said. He said the measurements don’t change. They absolutely do. No one doubts that the changes would be audible (and measurable), except perhaps you.


nonoise6,670 posts01-14-2021 2:14pmOn a review of the Marantz SA-10CD/SACD player, I came across this:
http://www.10audio.com/marantz_sa-10.htmI

The user can adjust settings for dither to minimize quantization errors, and also choose one of four settings for the Noise Shaper, which changes “linearity and noise characteristics in the audible range using digital feedback. The measurements are the same but the sound quality changes.” Changing the dither and Noise Shaper settings have an audible effect, but were left at the default settings for this evaluation.
The part where it states: The measurements are the same but the sound quality changes. caught my attention. Is that true? And, if so, how is it explained that something can sound different yet measure the same?


nonoise6,670 posts01-14-2021 8:03pmBoth of you should contact Marantz and maybe the reviewer, discuss it with them, dazzle them with your brilliance, and get back to us on how you told them and set the record straight.

All the best,
Nonoise

nonoise6,670 posts01-14-2021 8:42pmI have no reason to contact Marantz.
You do.

All the best,
Nonoise