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Topping E30 DAC Review

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rigadoon

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Wait. You don't have an E30? What???
Lol yeah can we all just buy one of these already like we obviously want to for some cheap AK thrills...it's really not that much, and they'll fix whatever they can with firmware. I really want to compare with my D50s into Atom into LP-6s while looking at that sweet orange display. You guys go first tho...tired of hitting refresh on this thread :) Topping could you make it in white too, so it matches my LP-6s ;) Promise I'll buy the L30 as well whenever it fights its way out...
 
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As far as I know the E30 does not hum. If you experience a hum: Check your RCA cables for ground loops, or check any equipment in your audio chain. Also check your power supply. Normaly the E30 does not hum at all. A friend of mine who has the E30 does not here any hum either. Also on this forum I did not read anything about the E30 humming, except for one post. Later the same person of that post said that the hum was because of the cables he used. The hum you here probably comes from elsewhere and not from the DAC.

Thanks for your answer. I understand that at the end of the quality line is always the lowest key component which make the overall quality. I will check everything and also the cables. Good tip about the Ground loop. My consideration was more related to the power supply given that i get the Usb power from the amp. Also it could be a low insulation from the amp.

I have been waiting to get a Hifi Ultra-low noise Linear Power supply but i need to do a little bit more research about it.
 

somebodyelse

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I have been waiting to get a Hifi Ultra-low noise Linear Power supply but i need to do a little bit more research about it.
If you're planning to use it with the E30 you'd almost certainly be wasting your money, assuming the goal is audio performance not a pretty box or bragging rights. There will be multiple internal regulators, almost certainly including a switching regulator of some sort to make the -ve rail for the output stage. These are good enough to produce this measured performance when supplied from an ordinary USB hub. In the unlikely event that a change of PSU improves on these measurements, that improvement will almost certainly be inaudible in a blind test (level matching not required in this case as you'd just be changing power source).
 
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Thanks for your answer. I understand that at the end of the quality line is always the lowest key component which make the overall quality. I will check everything and also the cables. Good tip about the Ground loop. My consideration was more related to the power supply given that i get the Usb power from the amp. Also it could be a low insulation from the amp.

I have been waiting to get a Hifi Ultra-low noise Linear Power supply but i need to do a little bit more research about it.
You can just test with a phone charger as power supply to verify if is the ground loop issue. I use ifi ipower with my E30.
 

franspambot

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Thanks for your answer. I understand that at the end of the quality line is always the lowest key component which make the overall quality. I will check everything and also the cables. Good tip about the Ground loop. My consideration was more related to the power supply given that i get the Usb power from the amp. Also it could be a low insulation from the amp.

I have been waiting to get a Hifi Ultra-low noise Linear Power supply but i need to do a little bit more research about it.
Please see the following for more information about those "hi-fi" power supplies. They are a waste of money.
https://www.audiosciencereview.com/...o-you-need-linear-power-supply-for-dacs.7021/
There are plenty of threads for you to find as well.

More, this reasoning strongly suggests that you don't understand the measurements. I am not picking on you here but trying to help. I've been there. I have purchased fancy power supplies like the ifi one. The noise issue has been discussed ad nauseam here on this thread. Please look it up. But more importantly, what could you possibly think that you are gaining by switching power supplies? The DAC measures 112dB SINAD with a "dirty" source. How can you possibly "hear" any improvement? You need to learn what the measurements mean and how to use them. This is the whole point of the site.

That said, there are plenty of reasons for getting a power supply that have nothing to do with audio fidelity. And there are plenty of well-engineered, professional power supplies. I use this Jameco one with my E30 because it is more convenient for me: https://smile.amazon.com/gp/product/B00B88ENAG/.
It is a professional and robust power supply. More, there is nothing wrong with paying a little bit more for something that is well-engineered--though in the case of the "hi-fi" ones, a rip-off is a rip-off. But for me to think that it will improve anything is just plain silly.
 
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samsa

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Are the connections at the back so loose?
Is that normal ?
If you're talking about the barrel connector on the supplied USB-A → barrel cable, yeah. Mine had an outer diameter ~.5mm too narrow.

The correct cable is easy to obtain. But it was a little chagrining that Topping shipped the wrong cable with my E30.

Interesting, maybe you can try Manjaro, it's 64bit Linux. That's the only difference i can think of now. Or buy a raspberry pi 4 which has better usb port I think.
I did upgrade my Rpi 3B+ to the latest Raspbian and Linux kernel:

Code:
Raspbian 10.3 | 5.4.35-v8+ #1314 | aarch64 (64-bit)
That made no difference to the "E30 won't stay in Standby mode when connected via USB" issue.
 
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jinny

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Wanting to pick one up but it seems shipping is significantly delayed from China, has anyone bought from aliexpress recently using dhl and received within 2 weeks?
 
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Wanting to pick one up but it seems shipping is significantly delayed from China, has anyone bought from aliexpress recently using dhl and received within 2 weeks?
Yes over few weeks ago I bought one. Shenzhen audio bit not from Ali express. It takes 5 working days to proceed the order but after that I had it in a week. Be aware that you might need to pay tax ditties.
 
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Wanting to pick one up but it seems shipping is significantly delayed from China, has anyone bought from aliexpress recently using dhl and received within 2 weeks?
I ordered one a few days ago via Aliexpress postage. It has already left the country according to tracking. I was going to use DHL but didn't want to pay the customs charges that so many have complained about. I know it's dependent on the country, so this may not apply to you. You should be okay with DHL.
 
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Wanting to pick one up but it seems shipping is significantly delayed from China, has anyone bought from aliexpress recently using dhl and received within 2 weeks?
I ordered mine from Apos Audio. They shipped it from China on April 27th and it was delivered to me in Arizona on April 29th. Woo-hoo!
 
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Toku

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Wanting to pick one up but it seems shipping is significantly delayed from China, has anyone bought from aliexpress recently using dhl and received within 2 weeks?
Which shop did you order from?
I arrived in 6 days by DHL in late April when air freight was decreasing due to covid-19. I don't think there will be any major confusion when shipping via DHL or FeDex.
However, it should be noted that, from my experience, purchasing from China does not provide compensation for accidents in transit.
 

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