Thats make it 2. But headfonia cannot make final conclusion in depth difference and certain aspect that are better overall. What about other reviews ?https://www.headfonia.com/topping-a90-review/
Here’s another. It echoes everything said in the other review
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Topping A90
- Thread starter bahamot
- Start date
Lucky87
100+ Head-Fier
Is there anyone who using a HD800 with A90? How is the synergy? I. planning to purchase a Hd800 but its very amp picky.
I think it does very well but I think I like the Violectric V281 combo better with my HD800 and when the HD800 launched it was with the Violectric amp now I know why. Both amps are warmish in sound and my testing was with my Holo Spring 2 KTE, and Chord Dave dacs.
ClicketEKlack
100+ Head-Fier
Thats make it 2. But headfonia cannot make final conclusion in depth difference and certain aspect that are better overall. What about other reviews ?
https://www.audiosciencereview.com/...topping-a90-headphone-amplifier-review.13592/
That is even worst. Nothing really talks about the sound rather than just built. Mostly nonesense, sadly !
Baten
Headphoneus Supremus
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Yep that's Zeos ReviewsThat is even worst. Nothing really talks about the sound rather than just built. Mostly nonesense, sadly !

Its full of BS, am shocked ! Why would people take him so seriously ? Funny guy though.Yep that's Zeos Reviewsall hype little substance
MRHiFiReviews
Formerly MRphotography
Sponsor: The Source AV
Hey Friends, my thoughts on the Topping A90 and how it pairs with the Topping D90! I hope you guys enjoy the video.
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TSAVJason
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Hey Friends, my thoughts on the Topping A90 and how it pairs with the Topping D90! I hope you guys enjoy the video.
Have you heard the HPA-4 ?
sajunky
Headphoneus Supremus
I suggest to read the entire discussion on the ASR test thread, not just the measurements. You will be able to pickup shortcomings in the design.
I made a summary on a local SA forum. The following posts also reveal a serious design problem with dual MeanWell SMPS's. I would wait for L30 it should sale around $100 to compete with Atom (if you are a Topping head).
https://www.avforums.co.za/index.php/topic,88010.msg1003523.html#msg1003523
I made a summary on a local SA forum. The following posts also reveal a serious design problem with dual MeanWell SMPS's. I would wait for L30 it should sale around $100 to compete with Atom (if you are a Topping head).

https://www.avforums.co.za/index.php/topic,88010.msg1003523.html#msg1003523
Last edited:
I suggest to read the entire discussion on the ASR test thread, not just the measurements. You will be able to pickup shortcomings in the design.
I made a summary on a local SA forum. The following posts also reveal a serious design problem with dual MeanWell SMPS's. I would wait for L30 it should sale around $100 to compete with Atom (if you are a Topping head).
https://www.avforums.co.za/index.php/topic,88010.msg1003523.html#msg1003523
Thanks for the link. This is what happens when companies chase after measurements over all others. I'm afraid SMSL is another one heading in that same direction.
ClicketEKlack
100+ Head-Fier
What seems to be lost in all the granular parsing of numbers and reviews -- some of us who actually own the A90 really love it. Mine paired with the D90 and Focal Utopias sounds incredible. Do I have anything to compare it to, save my own DAP? No. And given the pandemic, not likely to be able to A/B it for a year at least. In the meantime, I'm grateful to the reviews who steered me to the A90. No regrets.
What seems to be lost in all the granular parsing of numbers and reviews -- some of us who actually own the A90 really love it. Mine paired with the D90 and Focal Utopias sounds incredible. Do I have anything to compare it to, save my own DAP? No. And given the pandemic, not likely to be able to A/B it for a year at least. In the meantime, I'm grateful to the reviews who steered me to the A90. No regrets.
Whether you own it or not should have little bearing on the issues being surfaced or its validity, as long as data can be corroborated. I'd much rather the issues be widely known so the manufacturer doesn't repeat the same mistakes. There's lot to like about the A90, but as with most components out there, it's not without faults. I like mine as well for the most part except for the noisy SE out. No complaints on the balanced side. SQ compared to THX products is preferential, so I don't pay much attention to that front.
ClicketEKlack
100+ Head-Fier
Whether you own it or not should have little bearing on the issues being surfaced or its validity, as long as data can be corroborated. I'd much rather the issues be widely known so the manufacturer doesn't repeat the same mistakes. There's lot to like about the A90, but as with most components out there, it's not without faults. I like mine as well for the most part except for the noisy SE out. No complaints on the balanced side. SQ compared to THX products is preferential, so I don't pay much attention to that front.
Oh, you're correct. The key words are 'data' and 'corroborated.' I'm all for reporting issues and problems that have not come to light in reviews, especially technical ones. The more hard info for consumers, the better. I just mean that the posted assumptions that any positive review must be the result of bribery -- without a shred of evidence suggesting as much -- are not as helpful to prospective buyers as first-hand accounts.
MRHiFiReviews
Formerly MRphotography
Sponsor: The Source AV
What seems to be lost in all the granular parsing of numbers and reviews -- some of us who actually own the A90 really love it. Mine paired with the D90 and Focal Utopias sounds incredible. Do I have anything to compare it to, save my own DAP? No. And given the pandemic, not likely to be able to A/B it for a year at least. In the meantime, I'm grateful to the reviews who steered me to the A90. No regrets.
I agree, I think it’s a great reference amp for the money especially when using it via the balanced connections. I actually have the Utopias in for review now and will be listening to them with the A90/D90 combo along with the Bifrost2 and a few other amps.
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TSAVJason
Stay updated on The Source AV at their sponsor profile on Head-Fi.
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MRHiFiReviews
Formerly MRphotography
Sponsor: The Source AV
Have you heard the HPA-4 ?
Not yet but would love to check it out.
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TSAVJason
Stay updated on The Source AV at their sponsor profile on Head-Fi.
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