Measurements of Sonore microRendu Streamer

[amirm]

Dpnt forgetcthe fast differential probe!

That is what I meant by bits and bytes! These things run into thousands of dollars by themselves.

 

[Sal1950]

Noise from a PC (or other computing device, Pi or whatever) can be carried along in the ground connection, plus I suppose RF noise on the data/PSU lines. This why I use an Intona galvanic isolator.

That's why I'm using Toslink.

 

[watchnerd]

Has there been a comparison of these two device (microrendu and RPi) in jitter and noise at the usb port?

Archimago has measured and reviewed both, including recently the USB out of the PI. I'd check there.

 

[Sal1950]

Archimago

Archimago, my man!

 

[skypickle]

So I found this
http://archimago.blogspot.com/2017/01/measurements-raspberry-pi-3-as-usb.html#more
No direct comparisons but a polite statement hinting at no difference to 690$ streamers. And only using a switching power supply

 

[amirm]

I plan to do a comparison of microrendu to Raspberry Pi streamers. And if it all works out, to another (lower cost) commercial one!

 

[March Audio]

I plan to do a comparison of microrendu to Raspberry Pi streamers. And if it all works out, to another (lower cost) commercial one!

cool!

 

[LulaNord]

Hi...i am a new user here. As per my knowledge if the microRendu causes the iFi DAC to output a higher analog level with the same digital level source, there are two options:The digital signal level has been increased by the microRendu - meaning it isn't transparent passing data - meaning, to me if a full scale source signal is processed it will be digitally clipped. And Testing error.Can you digitally loop your source to the analyzer, and while transmitting the same source digital signal, compare the numerical levels of what would be "direct to iFi" vs "massaged by the microRendu"?

printed circuit assembly

 

[RayDunzl]

if the microRendu causes the iFi DAC to output a higher analog

Maybe you haven't read far enough, but that was resolved - cockpit error... see post #27

 

[jtwrace]

I apologize if I have missed it but what make/model is the Lab Power Supply?

 

[amirm]

I am not home so can't look up model. But it is nade by Leader. It is 20+ years old linear power supply. I am not sure if it is still made.

 

[jtwrace]

I am not home so can't look up model. But it is nade by Leader. It is 20+ years old linear power supply. I am not sure if it is still made.

Thanks!

 

[amirm]

You are welcome. And welcome aboard by the way.

 

[amirm]

Found a picture of it on my workbench for when I tested the grounding box:

It is the box on the left. I actually have three different ones so it may have been one of them but all are in the same series.

 

[Blumlein 88]

And now, it is obvious with one picture why your results were no good. You have used a skewed power cord plug. How many times must it be repeated, everything matters. Your skewed cord plug should be 90 degrees to the earth's magnetic field or parallel to it. You can't get results at a level of sensitivity that a grounding box works with such sloppy implementation. All that expensive test gear becomes useless from simple sloppiness. Oh, and is it okay to stack your Stax like that?

 

[Don Hills]

What's the box behind it with all the power cords plugged into it?
And you need to replace the power cord from the wall socket, it's far too flimsy and cheap.

 

[DonH56]

Looks like a standard UPS.

Wood looks nice for a workbench, but one thing I would seriously recommend is getting a good antistatic mat that covers it. At these frequencies and for consumer stuff ESD probably isn't a huge concern, but you're obviously not in Colorado. Dry air, lots of static.

Which perhaps explains a few of my posts...

 

[amirm]

Looks like a standard UPS.

NO, it is a magic box with ultra-super-cap energy generator using rare, radical free insulated wires. I hope to market it one day for say $20,000.

 

[amirm]

Wood looks nice for a workbench, but one thing I would seriously recommend is getting a good antistatic mat that covers it. At these frequencies and for consumer stuff ESD probably isn't a huge concern, but you're obviously not in Colorado. Dry air, lots of static.

It is not an electronic workbench Don although I have done some light work there. It is a bench for measuring audio equipment right now. I am debating where you build my electronics bench as this place is highly visible in our home. I have space in basement but don't want to work there as it is away from family....

 

[Blumlein 88]

NO, it is a magic box with ultra-super-cap energy generator using rare, radical free insulated wires. I hope to market it one day for say $20,000.

Maybe this info will help then if you intend to market oil/paper based insulated audiophile wires with it being free of free radicals.

www.mdpi.com/1996-1073/8/8/7690/pdf