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Topping A70 Pro HP & Preamp Review

Rate this preamplifier and headphone amp:

  • 1. Poor (headless panther)

    Votes: 13 4.0%
  • 2. Not terrible (postman panther)

    Votes: 7 2.2%
  • 3. Fine (happy panther)

    Votes: 37 11.4%
  • 4. Great (golfing panther)

    Votes: 268 82.5%

  • Total voters
    325

jargonin

New Member
Joined
Oct 6, 2023
Messages
1
Likes
1
About 2 days ago i wanted to buy the Topping A70 pro from Audiophonics.fr, but reading this thread i was cautious.

I pinged them asking about the current batch and hp-dc problems, they replied saying "This issue is fixed on current stocks."

So i bought one, considering they had 2 years warranty. Let's see what happens.
 

raif71

Major Contributor
Joined
Sep 7, 2019
Messages
2,324
Likes
2,517
I am worried the amp I bought a couple of weeks ago may end up with the error too. any way to induce it? They should at least let us know what batch of serial numbers are at least fixed.
Yes the serial number is a good indicator. Like the L30 amp fiasco, Topping came out stating the serial number starting with ... has the fix. Should be the same with this too. All prior units with the serial number before the serial number that is fixed should be sent back for repair and released with the serial number that is fixed. That's my 2 cents.
 

Nationalizer

Member
Joined
Aug 27, 2019
Messages
25
Likes
33
Location
Roam-ania
Topping has these dangerous issues over and over again. Burning up your headphones is one, damaging your hearing is another. Why are people still risking this for a few $ cheaper?
 

BigBeard

Member
Joined
Jan 6, 2019
Messages
27
Likes
3
i am hoping someone with a confirmed "good" batch supplied by a retailer would post what their serial number starts with, here.
 

Monosauras

Member
Joined
Feb 2, 2023
Messages
65
Likes
16
Topping has these dangerous issues over and over again. Burning up your headphones is one, damaging your hearing is another. Why are people still risking this for a few $ cheaper?
I'm starting to think it isn't worth the risk. How much extra for a similarly performing unit?
 

Pulsarre

Member
Joined
Aug 28, 2023
Messages
16
Likes
13
Location
France
i am hoping someone with a confirmed "good" batch supplied by a retailer would post what their serial number starts with, here.
Mine is, but I have no idea on where to look for the serial number, it doesnt seems to appear on the unit
 

RWEI

New Member
Joined
Sep 4, 2023
Messages
2
Likes
2
I bought one a few weeks ago,and using Ananda and He6se V2 on it nearly a month without any issue.
 
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Human Bass

Addicted to Fun and Learning
Joined
Nov 25, 2018
Messages
632
Likes
646
Topping has these dangerous issues over and over again. Burning up your headphones is one, damaging your hearing is another. Why are people still risking this for a few $ cheaper?
I mean, it is a super clean powerhouse. Once fixed it is among the very best in the world for a low price. It seems they did fix it, although the communication is lacking.
 

Phony846

Member
Joined
Sep 2, 2020
Messages
49
Likes
61
Location
San Diego
I have the HiFiman He1000 v2 stealth. I get similar output volume with low gain at -10dB, or high gain at -20dB. Besides the imperceptible SNR difference, is one config better than the other?
 

staticV3

Master Contributor
Joined
Aug 29, 2019
Messages
7,170
Likes
11,426
I have the HiFiman He1000 v2 stealth. I get similar output volume with low gain at -10dB, or high gain at -20dB. Besides the imperceptible SNR difference, is one config better than the other?
No.
 

Music1969

Major Contributor
Joined
Feb 19, 2018
Messages
4,543
Likes
2,753
Mmm I normally say wait 6 months after a new Topping product to buy.

It seems since this product has faults till recently fixed, I will wait another 4 months till I buy it.

Just to make sure the stock I buy is from the latest fixed stock.

I will buy in Feb 2024 :D
 

Nationalizer

Member
Joined
Aug 27, 2019
Messages
25
Likes
33
Location
Roam-ania
Mmm I normally say wait 6 months after a new Topping product to buy.

It seems since this product has faults till recently fixed, I will wait another 4 months till I buy it.

Just to make sure the stock I buy is from the latest fixed stock.

I will buy in Feb 2024 :D
They launch 5 new products in 6 months. The one you want to buy is already obsolete by that time :))
 

MyCuriosity

Member
Joined
Jan 25, 2023
Messages
83
Likes
41
Looking the power output looks like there is either something wrong with the measurements or the manufacturer is providing false information (lying). The maker claims 12.6w at 32 ohms which is miles away from the measured performance.
 

staticV3

Master Contributor
Joined
Aug 29, 2019
Messages
7,170
Likes
11,426
Looking the power output looks like there is either something wrong with the measurements or the manufacturer is providing false information (lying). The maker claims 12.6w at 32 ohms which is miles away from the measured performance.
Topping claims 12.6W per channel at 32Ω, <0.1% THD+N
Amir measured 11.7W per channel at 32Ω, <0.1% THD+N:
Screenshot 2023-10-26 at 23.26.38.png

That is 0.3dB less volume than claimed, or 97.9% of the claimed volume.
 
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