Topping E70 Velvet (AKM 4499EX)

[Rottmannash]

Ah, sorry- misread your post. I'd love a E70 Velvet but have so many DACs now it's ridiculous.

 

[JSmith]

The E70 is $296. The E70 Velvet is $382. Excellent prices for both dacs.

Not really though when you consider the only main difference is ESS vs AKM and the word velvet.


JSmith

 

[MadMaxx]

Not really though when you consider the only main difference is ESS vs AKM and the word velvet.


JSmith

I think you fail to grasp the monumental impact of adding Velvet to the name of the AKM version.

 

[Martin]

The E70 is $296. The E70 Velvet is $382. Excellent prices for both dacs.

At those prices I couldn’t pass them up. I just ordered both. Plan to perform a level matched comparison through my Benchmark HPA-4 using both headphones and speakers. Anyone interested in a gently used DX7 Pro? I’m posting it for sale when I get these.

Martin

 

[raif71]

When one gets the E70, this is the best song to complement your new purchase. In addition to the velvet smoothness, you get the blackest background to differentiate between silence and when there's sound.

 

[JSmith]

When one gets the E70, this is the best song to complement your new purchase. In addition to the velvet smoothness, you get the blackest background to differentiate between silence and when there's sound.

... or blue.

JSmith

 

[theREALdotnet]

I can see the allure of the Velvet, but would it be too much to ask of AKM to make a Silk and an Egyptian Cotton version as well?

Kidding of course, AKM should stick to silicon instead of playing around with these flammable materials. They’ve already burned down the factory once…

 

[JSmith]

would it be too much to ask of AKM to make a Silk and an Egyptian Cotton version as well?

Oh I've already emailed them asking for a baby camel hair version... will be the smoothest sound ever. I'm told they're looking into it...


JSmith

 

[theREALdotnet]

Oh I've already emailed them asking for a baby camel hair version... will be the smoothest sound ever. I'm told they're looking into it...

If they manage to control the smell I’m all for it!

 

[aka_Z]

You are just jelaous to George Costanza

Btw, Apos does not have pickup option. Now I have to wait for them to ship the device to me, even though they are just a few miles away

 

[rarewolf]

Not really though when you consider the only main difference is ESS vs AKM and the word velvet.


JSmith

“To evaluate DAC performance, I paired the E70V directly with my time-tested studio monitors via XLR. I switched between both of the units, volume-matched, and used the same AQ cables. The E70V sounds natural, impressively clean, and accurate. It is tonally balanced, with a colorless signature across the spectrum. The E70V features the same, mighty impressive technical ability as the E70. It is not surprising since Topping has been constantly upping its game throughout 2022. Its resolution is just brilliant. I believe the biggest difference between the two devices is that the AKM has a more realistic, slightly meatier, and slightly more natural timbre, especially in wind and natural instruments. Although the difference is quite small, I was able to distinguish between the E70V and E70 8 out of 10 times in a blind test…”

Topping E70V Review

In this article we review the new Topping E70V DAC selling for $449 USD. It is a recommended buy! Discover why, now on Headfonia!

www.headfonia.com

 

[staticV3]

"To evaluate DAC performance, I paired the E70V directly with my time-tested studio monitors via XLR. I switched between both of the units, volume-matched, and used the same AQ cables. Although the difference is quite small, I was able to distinguish between the E70V and E70 8 out of 10 times in a blind test…"

Sorry, but when it comes to a blind test between two transparent DACs, that's just not enough.

Volume-matched how?
How were the two DACs fed?
What was the dead time when switching?
How was the blind test conducted?

That's the sort of questions that cannot be left unanswered if the test result should hold any value.

 

[Martin]

Have to find some Mel Tormé or Velvet Undergound to play.

Martin

 

[JSmith]

Seems apt in a few ways.

... together Velvet goldmine, you stroke me like the rain Snake it, take it, Panther princess you must stay Velvet goldmine ...

JSmith

 

[Martin]

So I've been thinking about my upcoming comparison between the E70 pair. I will start a separate thread when I have completed the comparison but wanted some help setting it up. Here are the relevant details and my questions...

The Setup

Components:

• PiCorePlayer with embedded LMS on 2GB Raspberry Pi 4
• USB A male to USB A female splitter cable
• Identical USB A to USB B cables
• Topping E70 & Topping E70 Velvet both set to DAC mode, 4V output and default filter
• Identical XLR cables
• Benchmark HPA-4 preamp / headphone amp
• Audeze LCD-3 headphones or ICEpower monoblock amps through Von Schweikert VR-5 Anniversary speakers

I will use oratory1990 headphone equalization and REW speaker equalization throughout. Equalization is performed on the LMS using SOX. Comparison will be performed with a set of songs I know well; I may use the same set I used for my headphone comparison.

Level Matched:
This is where I need help. I have a multimeter, a Radio Shack handheld sound level meter, and pink and white noise FLAC files. I was planning to check voltages on the USB cables and sound levels through my speakers. What is the best recommendation for level matching?

Blind:
I will have my son connect the DAC USB cables and XLR cables between the DACs and HPA-4. The DACs will not be visible to me, and I will switch between the two HPA-4 inputs. Switching should be nearly instantaneous. I will have control of the HPA-4 remote and will switch between the two inputs at will. Only after I have completed the comparison will I look to see which DAC is connected to which input. How many trials should I run?

Any other comments or recommendations?

Thanks,
Martin

 

[staticV3]

USB A male to USB A female splitter cable

I hope you're not trying to connect two DACs to one USB port on the Raspi using a simple splitter cable, because that won't work.

This is where I need help. I have a multimeter, a Radio Shack handheld sound level meter, and pink and white noise FLAC files. I was planning to check voltages on the USB cables and sound levels through my speakers. What is the best recommendation for level matching?

The USB cables don't carry an analog signal that you could measure the voltage of. You need to measure the voltage at the DAC outputs, in-situ. Or at the Amp output works as well. Use a 60Hz test tone for this, and make sure any replay gain is turned off in the player.
You can forget about the SPL meter. It's not accurate and repeatable enough for this.

Blind:
I will have my son connect the DAC USB cables and XLR cables between the DACs and HPA-4. The DACs will not be visible to me, and I will switch between the two HPA-4 inputs. Switching should be nearly instantaneous. I will have control of the HPA-4 remote and will switch between the two inputs at will. Only after I have completed the comparison will I look to see which DAC is connected to which input. How many trials should I run?

Give your son a phone with a random number generator running on it that outputs either a 1 or a 0. After each trial when you're done A/B-ing and tell your son which DAC you think is which, he should refresh the generator. If it's a 0, have him plug out both DACs and plug them in the same way as before. If it's a 1, have him plug out the DACs, then plug them back in the other way.
Your son should have a pice of paper where he notes down each trial, what DAC is connected to what input, and whether you got it right.
The DACs and inputs should be labeled to avoid operator error.
I'd say 10-20 trials should be good.

 

[Martin]

I hope you're not trying to connect two DACs to one USB port on the Raspi using a simple splitter cable, because that won't work.

That was the plan to avoid having to switch inputs/ouputs on multiple devices. Why would it not work? The Pi has 2 USB 3 and 2 USB 2 ports. I guess I can use one pair of outputs. Are they both active or will I have to switch between them? Looks like I'm going to have to do some experimenting.

 

[staticV3]

That was the plan to avoid having to switch inputs/ouputs on multiple devices. Why would it not work? The Pi has 2 USB 3 and 2 USB 2 ports. I guess I can use one pair of outputs. Are they both active or will I have to switch between them? Looks like I'm going to have to do some experimenting.

You can certainly connect two USB devices to one port on your Pi using a USB Hub. Those have a controller inside that assures proper communication. As a result, both DACs will be detected by the Pi as separate devices.

What doesn't work is connecting two accessories to one port with a simple USB splitter made of only copper wires.

It should be possible to tell the Pi to output the audio to two USB DACs simultaneously, but I don't know if or how this works using picoreplayer.

 

[Martin]

You can certainly connect two USB devices to one port on your Pi using a USB Hub. Those have a controller inside that assures proper communication. As a result, both DACs will be detected by the Pi as separate devices.

What doesn't work is connecting two accessories to one port with a simple USB splitter made of only copper wires.

It should be possible to tell the Pi to output the audio to two USB DACs simultaneously, but I don't know if or how this works using picoreplayer.

Now I see the error of my ways. PiCorePlayer needs to know the device on the USB port. I'll play with connecting through two separate USB ports on the Pi. I've found some relevant posts on the piCorePlayer / Logitech forums.

 

[fabien32]

Prof. Wolf posted measurements of this unit 8 days ago;

Measurements of Topping E70 VELVET DAC - L7Audiolab

台式设备 随着"三小强"中SMSL和Gustard都推出了自己的4499EX解码器，拓品的研发总让我感觉是不是有点滞后？不过随着我拿到这台 Topping E70 VELVET 我打消了疑虑，拓品还是他家的老样子……

www.l7audiolab.com

It seems this implementation of the AKM 4499EX is also showing the IMD hump which showed up in the measurements of the SMSL D400EX.

From what I can see it's basically the E70 with an AKM chip instead of ESS;

Greetings! TOPPING E70 VELVET DAC!

The twins of E70 with higher capabilities! TOPPING has announced numerous superior DACs, including the D series, and E series, all of which play very well and get many high-praised! And this time, TOPPING updates its E series and invites E70 VELVET to be a new member! From what it is named...

shenzhenaudio.com

JSmith

Let me understand, when you guys changed from es to ex that was something else?