This is a review and detailed measurements of the Loxjie D40 Pro balanced stereo DAC and headphone amplifier. It was sent to me by the company. It normally costs US $430 but is on sale for $388.
The enclosure is metal but the silver look makes you think it is made out of plastic. The 7 segment display is workable but certainly not as fancy as a graphic display. It is however aided with hard buttons for common functions. The included remote makes it easy to navigate:
Overall, an attempt is made to save cost but not in a way that is too obtrusive. Let's see if performance is subject to same or not.
Loxjie D40 Pro Measurements
I must say, I was not prepared to see state of the art performance out of the D40 Pro:
It nicely lands in the middle of top 20 best DACs tested as far as combination of noise and distortion:
RCA performance as usual a bit lower but still way past transparency:
For above, I set the volume to 0 dB. It goes to +2 which gives you even more output and performance:
Noise performance is excellent of course:
Multitone distortion is superb:
As is IMD:
Linearity is perfect:
Jitter is perfect over USB and essentially the same over coax:
We have our typical set of filters:
Using the default filter, we get excellent wideband noise and distortion:
So really, nothing to fault the DAC section on.
Loxjie D40 Pro Balanced Headphone Out Measurements
In the interest of time, I focused on balanced output. Unbalance would product 1/4 of power. Speaking of which, this is one powerful headphone output for this class of device:
Even in low gain mode we have plenty of power meaning you can enjoy the benefits of it never clipping and ultra low distortion. There is no negative gain which is usually required to get state of the art noise performance at just 50 mv output:
Still, performance is above average.
You can see the output stage power capability as we switch the output impedance form high of 600 ohm down to just 12 ohm:
I expect the headphone output to drive just about every headphone out there in balanced mode.
Conclusions
We have seen price creep in state of the art DACs in the last two years. Loxjie attempts to reverse the trend by producing same state of the art performance but at more affordable price point, especially with their sale. You pay no price for the DAC performance. Headphone amplifier in this class of device is usually competent but short in power to drive the most difficult headphones. Not so with D40 Pro. It produces a lot of power courtesy of its balanced output. There is really nothing to complain about and a lot to praise!
I am happy to recommend the Loxjie D40 Pro.
------------
As always, questions, comments, recommendations, etc. are welcome.
Appreciate any donations using: https://www.audiosciencereview.com/forum/index.php?threads/how-to-support-audio-science-review.8150/
The enclosure is metal but the silver look makes you think it is made out of plastic. The 7 segment display is workable but certainly not as fancy as a graphic display. It is however aided with hard buttons for common functions. The included remote makes it easy to navigate:
Overall, an attempt is made to save cost but not in a way that is too obtrusive. Let's see if performance is subject to same or not.
Loxjie D40 Pro Measurements
I must say, I was not prepared to see state of the art performance out of the D40 Pro:
It nicely lands in the middle of top 20 best DACs tested as far as combination of noise and distortion:
RCA performance as usual a bit lower but still way past transparency:
For above, I set the volume to 0 dB. It goes to +2 which gives you even more output and performance:
Noise performance is excellent of course:
Multitone distortion is superb:
As is IMD:
Linearity is perfect:
Jitter is perfect over USB and essentially the same over coax:
We have our typical set of filters:
Using the default filter, we get excellent wideband noise and distortion:
So really, nothing to fault the DAC section on.
Loxjie D40 Pro Balanced Headphone Out Measurements
In the interest of time, I focused on balanced output. Unbalance would product 1/4 of power. Speaking of which, this is one powerful headphone output for this class of device:
Even in low gain mode we have plenty of power meaning you can enjoy the benefits of it never clipping and ultra low distortion. There is no negative gain which is usually required to get state of the art noise performance at just 50 mv output:
Still, performance is above average.
You can see the output stage power capability as we switch the output impedance form high of 600 ohm down to just 12 ohm:
I expect the headphone output to drive just about every headphone out there in balanced mode.
Conclusions
We have seen price creep in state of the art DACs in the last two years. Loxjie attempts to reverse the trend by producing same state of the art performance but at more affordable price point, especially with their sale. You pay no price for the DAC performance. Headphone amplifier in this class of device is usually competent but short in power to drive the most difficult headphones. Not so with D40 Pro. It produces a lot of power courtesy of its balanced output. There is really nothing to complain about and a lot to praise!
I am happy to recommend the Loxjie D40 Pro.
------------
As always, questions, comments, recommendations, etc. are welcome.
Appreciate any donations using: https://www.audiosciencereview.com/forum/index.php?threads/how-to-support-audio-science-review.8150/
