You almost have to try to find a bad DAC these days. I did fairly detailed listening and measurement comparisons between the Topping D90SE and Gustard X16 not long ago. With identical loads and levels matched to 0.01 dB, it was impossible for me to tell them apart. I wrote about it in several posts in this thread over on ASR.
https://www.audiosciencereview.com/forum/index.php?threads/topping-d90se-review-balanced-dac.24235/p...
The Topping is $900 vs $500 for the Gustard. While they sound identical, the Topping does have a few more bells and whistles. Much nicer display, more filter choices, MQA decoding on all inputs, lower output impedance (100Ω vs 300Ω), selectable 4V or 5V output balanced, etc. Gustard offers a NOS mode that’s not on the Topping. It’s a nice feature for the HQPlayer crowd and folks who like to upsample everything to absurd rates.
Given that the X16 has virtually identical objective and subjective performance to the more expensive D90SE, I’d say that it "punches above its weight." However, if you are looking for a digital preamp that can directly drive a power amplifier, the Topping is worth the extra spend for the bigger display and lower output impedance, IMHO.
Edit: Here's a link to amplitude and time-domain measurements that I took of the various filter options on the D90SE and X16. There's a comparison of impulse and step response that a few nerds may find interesting. :)
https://www.audiosciencereview.com/forum/index.php?threads/topping-d90se-review-balanced-dac.24235/p...
https://www.audiosciencereview.com/forum/index.php?threads/topping-d90se-review-balanced-dac.24235/p...
The Topping is $900 vs $500 for the Gustard. While they sound identical, the Topping does have a few more bells and whistles. Much nicer display, more filter choices, MQA decoding on all inputs, lower output impedance (100Ω vs 300Ω), selectable 4V or 5V output balanced, etc. Gustard offers a NOS mode that’s not on the Topping. It’s a nice feature for the HQPlayer crowd and folks who like to upsample everything to absurd rates.
Given that the X16 has virtually identical objective and subjective performance to the more expensive D90SE, I’d say that it "punches above its weight." However, if you are looking for a digital preamp that can directly drive a power amplifier, the Topping is worth the extra spend for the bigger display and lower output impedance, IMHO.
Edit: Here's a link to amplitude and time-domain measurements that I took of the various filter options on the D90SE and X16. There's a comparison of impulse and step response that a few nerds may find interesting. :)
https://www.audiosciencereview.com/forum/index.php?threads/topping-d90se-review-balanced-dac.24235/p...