• WANTED: Happy members who like to discuss audio and other topics related to our interest. Desire to learn and share knowledge of science required as is 20 years of participation in forums (not all true). Come here to have fun, be ready to be teased and not take online life too seriously. We now measure and review equipment for free! Click here for details.

Topping D90 Balanced USB DAC Review

majingotan

Addicted to Fun and Learning
Forum Donor
Joined
Feb 13, 2018
Messages
736
Likes
632
Location
Laguna, Philippines
Joined
Feb 7, 2020
Messages
3
Likes
0
Save your money. Freya+ is an effect box while Ragnarok's amp performs far worse than Heresy and as such you would not be able to utilize D90's full performance. I'd recommend the Massdrop Linear amplifier THX 789 if you need balanced outputs instead
By saying Freya+ is an effect box what you mean exactly ? Heresy is far better than something that costs 15 times it is beyond me… Could you please elaborate ? Have you tried Ragnarok with Speakers ? Or you say that because you only tried headphones with Ragnarok ? Thanks for your contribution !
 
Joined
Feb 7, 2020
Messages
3
Likes
0
Benchmark AHB2 monoblocks is the answer to this
I 've just read the review from AudioBacon Benchmark AHB2 and I must admit that what you propose seems to be a really high-end speaker amplifier. But 3'700 € seems quite a steep price ! Do you own this amazing piece of equipment ? Do you think that it definitely worths the money ? With what speakers would you pair it ?
 

Matias

Addicted to Fun and Learning
Forum Donor
Joined
Jan 1, 2019
Messages
738
Likes
881
Location
São Paulo, Brazil
I 've just read the review from AudioBacon Benchmark AHB2 and I must admit that what you propose seems to be a really high-end speaker amplifier. But 3'700 € seems quite a steep price ! Do you own this amazing piece of equipment ? Do you think that it definitely worths the money ? With what speakers would you pair it ?
This is an objective focused forum. Recommendations are based on low distortion and good measurements.
Here are some other good measuring options:
https://www.audiosciencereview.com/...dio-p502-stereo-amplifier-measurements.10909/
https://www.audiosciencereview.com/...and-measurements-of-hypex-nc400-diy-amp.5907/
https://www.audiosciencereview.com/...nc-374-euro-415usd-for-monoblock-nc500.10885/
https://www.audiosciencereview.com/forum/index.php?threads/apollon-as1200-review-and-teardown.9373/
https://www.audiosciencereview.com/...-and-measurements-of-nord-one-nc500-amp.7704/
https://www.audiosciencereview.com/...e-nc1200dm-signature-stereo-amp-review.10261/
https://www.audiosciencereview.com/...-se-1et400a-dual-mono-stereo-amp-review.9938/
 
Last edited:
Joined
Aug 24, 2018
Messages
14
Likes
3
Hi,

what is the output impedance for xlr?

I´ve had an RME DAC and it sounded really wrong connected directly to my active speakers. Going though my preamp (0 Ohm) it sounded ok.

thanks
 

Lordcloud

New Member
Joined
Jan 25, 2020
Messages
4
Likes
5
I 've just read the review from AudioBacon Benchmark AHB2 and I must admit that what you propose seems to be a really high-end speaker amplifier. But 3'700 € seems quite a steep price ! Do you own this amazing piece of equipment ? Do you think that it definitely worths the money ? With what speakers would you pair it ?
I own a pair of AHB2's, and I received my D90 yesterday and am listening right now.

I heartily recommend the Benchmarks.
 

da Choge

Member
Forum Donor
Joined
Dec 31, 2018
Messages
73
Likes
55
Location
DFW
I own a pair of AHB2's, and I received my D90 yesterday
I assume you're listening to the Benchmarks in bridged mono? -- Very nice !!! Curious as to what speakers you're running (if you don't mind sharing) and your opinion of the D90.
 

Lordcloud

New Member
Joined
Jan 25, 2020
Messages
4
Likes
5
I assume you're listening to the Benchmarks in bridged mono? -- Very nice !!! Curious as to what speakers you're running (if you don't mind sharing) and your opinion of the D90.
The Benchmarks are indeed running in mono mode.

My speakers are Tempo Electric EP1's. http://www.tempoelectric.com/speaker_ep1.htm

So far.... the D90 sounds a bit flat and threadbare compared to my old DAC (modified MHDT Labs Balanced Pagoda). But I'm giving my ears a chance to acclimate.

I was wanting to move away from a tubed source, and towards a dac that was as neutral and information rich as possible. Not sure if it's a keeper yet, but we'll see.
 

maxxevv

Major Contributor
Joined
Apr 12, 2018
Messages
1,553
Likes
1,515
It's dies after 12 hours.
Depends on the sources quoted. The highest I have come across is that it can persist on certain surfaces under the right conditions for up to 36 hours. Under summer intensity sunlight, about 15 mins max.

Still, not a worry considering that the fastest shipping will take over 72 hours to reach anyone.

If you're really worried, get a spray bottle of Isopropyl Alcohol mixed with 70~80% water and spray on the surfaces of the package before doing anything further with it. Or get a UV lamp and leave it over the package for an hour.
 

Yviena

Active Member
Joined
Jun 5, 2019
Messages
101
Likes
28
@amirm did you measure the dac with the BT module screwed on, i'm curious if measurements will differ with the antenna on/off

Has anyone managed to enter DAC MODE where volume is fixed to 0dBFS? , in the manual of D90 it says there should also be i2s configuration setting, and factory reset settings but i can't find them.
 
Last edited:
Joined
Dec 21, 2019
Messages
14
Likes
11
@amirm did you measure the dac with the BT module screwed on, i'm curious if measurements will differ with the antenna on/off

Has anyone managed to enter DAC MODE where volume is fixed to 0dBFS? , in the manual of D90 it says there should also be i2s configuration setting, and factory reset settings but i can't find them.
I believe you have to hold the power button while turning on to get into the menu where you can enable DAC only mode.
 
Joined
Jan 28, 2020
Messages
9
Likes
5
@amirm In another DAC review you provided a comparison showing resolution of "a very low level sine wave at -90 db." I found it informative and wonder why you do not include it for subsequent reviews, including this one. Or is it not really that beneficial?
 
Top Bottom