• Welcome to ASR. There are many reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!

Eversolo T8 Digital Transport!

My phone works absolutely fine as a streamer so any streamer seems strictly unnecessary but T8 does seem to have some nice features if it works well in practice. It is just a specialised computer though. Also can’t see what the benefits from fibre connection are in reality.
 
It’s just an ‘in’ joke, fibre does isolate electrically but I have never has any issues with the previous copper connection.
Cool looking yellow cable and Sigberg ‘Sarannas’ which are for sale, (see PA site)

Keith
 
Advantages? Can you prove it?
Click to expand...
Potential advantages. If you have ground-loop hum or other ground-loop noise electrical isolation can eliminate it. This is an analog problem but you can get analog ground loops if the digital connection creates an additional ground path.

Ethernet connections are transformer isolated and of course there is no electrical connection with Wi-Fi or other wireless. And from the pictures the Eversolo has an isolated USB connection (that's a rare feature).

If you don't have ground loop problems isolation won't make any difference. And these problems are rare in home audio where cable-runs tend to be short.

Similarly, balanced analog connections are highly-immune to ground loop problems. Balanced XLR connections are standard in pro audio.
 
DVDdoug said:
Potential advantages. If you have ground-loop hum or other ground-loop noise electrical isolation can eliminate it. This is an analog problem but you can get analog ground loops if the digital connection creates an additional ground path.

Ethernet connections are transformer isolated and of course there is no electrical connection with Wi-Fi or other wireless. And from the pictures the Eversolo has an isolated USB connection (that's a rare feature).

If you don't have ground loop problems isolation won't make any difference. And these problems are rare in home audio where cable-runs tend to be short.

Similarly, balanced analog connections are highly-immune to ground loop problems. Balanced XLR connections are standard in pro audio.
Click to expand...
Thanks for the copy-paste from the internet, but the question is: what are the sound differences, and what (practical) advantages are there between an Ethernet cable connection and a fiber connection in our hi-fi systems, located in our home.
 
Pink Floyd said:
None, don't be fooled by those who sell snake oil.
Click to expand...
Don't take this wrong, SFT is a pretty ridiculous expense in a normal home environment but it does have advantages:
  • It can run longer distances than wired ethernet.
  • It can eliminate ground loops or hum sent over wired ethernet (usually via the shield).
    • But using simple UTP cables generally also provides a similar and incomparably cheaper fix.
  • It might, maybe, offer a more functional and more standardised way of providing a posh streaming connection to a DAC than currently seems the fashion with I2s. There again, so would wired ethernet.
 
Pink Floyd said:
Is there anyone who has the router more than 100 meters from the stereo system? If so, I also recommend fiber, but just for peace of mind, since it wouldn’t really be necessary anyway. :)
Click to expand...
Hmmm, got to try pretty hard for that. Back in the sands of time an internetless mate of mine had his stereo almost a mile away from my router and got his feed via wifi from my repeater so I guess that counts, even if not fibre. :)
 
The Eversolo T8 is a great addition to my system.
Prior to this I had the Topping D900 connected using the Raspberry PI5 with P2AES hat.
In this configuration, all digital inputs sound different. They also sounded different with the D90 III Discrete.

With the P2AES all outputs are active, so it is simple to switch and compare and it is quite obvious.
Many will say bits are bits, but that all ends at the DAC input, and who knows what occurs within.
There are paths the use the SPDIF clock, I2S clock, or USB and reclock.

Digital input testing is not well explored ASR.; Sign waves and lab gear are not enough to establish the real-world performance.

I have not yet setup to quickly switch with the T8s running two inputs.
This can be done because I have a trigger powered XLR switch controlled by a Shelly relay with web page.
I'm not yet motived, but I have two T8s and two D900s so I can setup an instant switching A/B comparison of input types.

I have done this in the past, so when folks say, all DACs sound alike, sorry no.
All DAC inputs do not sound the same.

Most people can hook up multiple inputs type from the same source and switch quickly between them.
I suggest doing it sometime ;)

- Rich
 
RichB said:
Prior to this I had the Topping D900 connected using the Raspberry PI5 with P2AES hat.
In this configuration, all digital inputs sound different. They also sounded different with the D90 III Discrete.
Click to expand...
Are you able to record these outputs, as this shouldn't be happening, unless there are simple level differences.
 
Soniclife said:
Are you able to record these outputs, as this shouldn't be happening, unless there are simple level differences.
Click to expand...
Not sure how to do that.

It would take knowledge of the device implementation to know if it should or should not happen.
I replaced my Benchmark DAC3 before I had the COAX option available for Roon.
I still have a Benchmark DAC3B that is a better match to the D900 on the COAX input.

Perhaps, clock generation from the USB works better on some DACs and environments than others.
There was a great deal of attention paid to the power supply and stability of the clock in the new Eversolo Z10 DAC.
Perhaps, there is a reason beyond appealing to techie audiophiles.

The Schitt guys may have a point about traditional USB implementations.
They rolled their own and added galvanic isolation. This might not matter in the lab measurements but could matter in home environments, especially those using computers.

- Rich
 
Can it record music and compare them? I don't think sine waves will do the trick.

Have you ever listened simultaneously streaming to your DAC and switching inputs?

- Rich
 
Pink Floyd said:
Thanks for the copy-paste from the internet,
Click to expand...
Steady on - DVD Doug is one of our more knowledgeable members. He wrote what I would have done not copy pasted from internet

Ground loop noise, if present in the system, can present as mains frequency hum - or as hisses or whines (especially when a PC is connected in the system). It can be very audible - and is transmitted through all copper interconnect which carries a ground. It is a system problem - not a component problem.

It can be mitigated by using balanced interconnect - or can be completely eliminated by any connection system that provides galvanic isolation - such as Toslink optical - or the optical connections as used above.

Ethernet is transformer coupled so should eliminate it also.
 
Last edited:
RichB said:
Can it record music and compare them? I don't think sine waves will do the trick.
Click to expand...

If you want to compare music - you can use Deltawave - which will compare two files - adjust the timing to match (accounting for clock drift) level match them, and provide you with a difference file that you can play at your normal listening volume. If you are comparing two Digital inputs, you'll find that the difference file is inaudible - even without full volume music to mask it.

Digital inputs (if functioning correctly, and, if receiving the same data) will not sound different in a properly controlled blind test. There is no mechanism in modern well designed dacs for them to do so.
 
RichB said:
Can it record music and compare them? I don't think sine waves will do the trick.

Have you ever listened simultaneously streaming to your DAC and switching inputs?

- Rich
Click to expand...
One of these for ~$200 can record analogue signals (like out of your DAC or even amplifier) so you can measure yourself with near APx accuracy https://www.audiosciencereview.com/forum/index.php?threads/e1da-cosmos-adciso-review.54020/

I have a Motu M2 myself which isn’t quite as accurate, but it’s been a fun addition to the hobby to allow myself to play real world music and see for myself in REW what’s happening.
I encourage you to do a little detective work, if your curiosity is so inclined, as to what the difference is between the signal paths. I agree there’s a LOT to audio products that can’t be represented by a single number generated by a test tone.
 
You must log in or register to reply here.

Similar threads

Purité Audio
Purité Audio no longer lacks moral fibre/fiber !
2 3
Replies
40
Views
3K
Purité Audio
Purité Audio
Purité Audio
Eversolo Dac Z10 @ Purité Audio
Replies
17
Views
1K
Purité Audio
Purité Audio
Purité Audio
Eversolo ‘Play’ arrives!
Replies
10
Views
2K
TTT15
T
Back
Top Bottom