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TANCHJIM Luna Portable HP Amp & DAC Review

Rate this portable DAC & HP Amp:

  • 1. Poor (headless panther)

    Votes: 0 0.0%
  • 2. Not terrible (postman panther)

    Votes: 0 0.0%
  • 3. Fine (happy panther)

    Votes: 26 14.9%
  • 4. Great (golfing panther)

    Votes: 148 85.1%

  • Total voters
    174

amirm

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This is a review, detailed measurements and listening tests of TANCHJIM Luna portable headphone amplifier and DAC. It was sent to me by the company and costs US $139.99 with anime engraving or $129.99 without:
TANCHJIM Luna Portable USB DAC AMP Headphone Balanced Review.jpg

The look and feel of the adapter is excellent. The controls for volume have different shapes, aiding in adjustment without looking, with great tactile feedback:
TANCHJIM Luna Portable USB DAC AMP Headphone Balanced usb-c volume control Review.jpg


As you see, we have both 3.5mm and 4.4 mm balanced output. Dual CS43198 combo DAC and headphone amps are used. Let's see how it performs.

TANCHJIM luna Measurements
As usual, with this class of device I can't run all of my tests. Let's start with the dashboard using balanced output at full volume:
TANCHJIM Luna Portable USB DAC AMP Headphone Balanced Measurement.png


We are getting (nice) desktop class DAC performance, landing at essential tie with the best tested in this category:
Best portable headphone amplifier and dac adapter mobile phone review.png


Unbalanced performance is also excellent:
TANCHJIM Luna Portable USB DAC AMP Headphone unBalanced Measurement.png


Dynamic range is stunningly good in general, let alone in portable category:
TANCHJIM Luna Portable USB DAC AMP Headphone dynamic range Measurement.png


That carries on even when the output is sharply reduced:
TANCHJIM Luna Portable USB DAC AMP Headphone Balanced 50 mv DNR Measurement.png

most quiet portable headphone adapter review.png


most quiet portable headphone adapter zoom review.png


Jitter performance is just as good:
TANCHJIM Luna Portable USB DAC AMP Headphone Balanced Jitter Measurement.png


As is Multitone:
TANCHJIM Luna Portable USB DAC AMP Headphone Balanced Multitone Measurement.png


Filter response is typical but with excellent attenuation at higher frequencies:
TANCHJIM Luna Portable USB DAC AMP Headphone Balanced Filter Measurement.png


Please ignore the noise level in the following power tests (the height of the graph). Just pay attention to max power and clipping:
TANCHJIM Luna Portable USB DAC AMP Headphone Balanced Power 300 Measurement.png

most powerful portable headphone amp 300 ohm.png

TANCHJIM Luna Portable USB DAC AMP Headphone Balanced Power 32 Measurement.png

most powerful portable headphone amp 32 ohm.png


As you see, we have one powerful portable adapter here. I am especially impressed with ability to drive low impedance loads with nearly 1/3 of a watt!

TANCHJIM Luna Listening Tests
I have loaned out my Sennheiser HD650 so started the testing with Hifiman HE400i. The fidelity and ability to drive this headphone was just insane. There was plenty of volume and superb detail and dynamics. Switching to Dan Clark E3 which is less efficient, still produced excellent results but needing to go almost to max volume. On one track, it clipped but on others, it sounded superb.

Conclusions
Objective measurements of Luna adapter shows best in class execution, being tied with just one other implementation of similar architecture. It costs more but it brings a very nicely executed enclosure and controls. Sound quality as predicted by the measurements is superb with ability to drive most headphones out there while being quiet enough for sensitive IEMs. There is simply no negatives here.

I am happy to recommend the TANCHJIM Luna portable headphone and DAC. We have arrived at a new era in portable products, achieving near top-end desktop class performance.

------------
As always, questions, comments, recommendations, etc. are welcome.

Any donations are much appreciated using: https://www.audiosciencereview.com/forum/index.php?threads/how-to-support-audio-science-review.8150/
 
Reserved for @AdamG to kindly post the specs.

Manufacturer Specifications:

IMG_0918.jpeg


 
Last edited by a moderator:
Thanks for this review !
Please ignore the noise level in the following power tests (the height of the graph).
When I tried to measure the Tanchjim Space, I was limited to 16 bits.
Is this something similar happening here ?
Obviously, the SINAD values require 24 bits.
But where is this limitation coming from ?
 
Is this something similar happening here ?
No, it is an issue with AP software. It only supports ASIO. I use ASIO4ALL and for some reasons it corrupts the bits for this entire class of audio.
 
Wow! Dongle chart busting territory, excellent! Thanks for the review @amirm. I would like to see how the Moondrop offerings getting measured :)
 
Seriously, though: I wonder if any listener could hear the difference between the Fossi DS2 and this Tanchum which costs more than twice as much. (Is the anime engraving worth a 237% increase in price over the unadorned Fossi, I wonder?)

The Tanchjm produces 1.86 dB more power into 33 ohms, a difference which some listeners could hear on careful A/B listening - just barely.

The Fossi has a a SINAD of about 117 dB, whereas the Tanchjm offers a 116 dB SINAD. I doubt anyone could hear that difference - but if we are judging these devices by SINAD then the Fossi is superior according to Amirm's testing.

I suppose that sometimes it just comes down to price. Price and anime....

anime2.png
 
Some of my iems have an impedance of 15ohm’s is it possible to include testing for this category?
 
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The Tanchjim Space is already excellent but still they managed to squeeze a little better numbers on the Luna. Impressive!

Also nice to have both options, with our without waifu stuff. I would definitely choose without.

Owning a Space I see no reason to upgrade though. It is still slightly cheaper and smaller.

Luna is a lot more powerful on 32 ohms (263 x 142 mW at the knee), but that is only useful for full sized headphones, IEMs don't use that much power.
 
Last edited:
If anyone's curious, TANCHJIM Space would sit next to Luna in the SINAD graph (115 vs 116).

EDIT: And there's additional comment from Amir: "In another measurement I saw, it hadn't clipped so SINAD was improved. I will have to follow up with the company and understand what is going on" but I don't know if there was any outcome.
 
SINAD graph is on full 4V output. Maybe on headphones but for IEMs it is pointless: the 50mV DR graph is a lot more meaningful then.
 
No, it is an issue with AP software. It only supports ASIO. I use ASIO4ALL and for some reasons it corrupts the bits for this entire class of audio.
Out of curiosity: are you using the latest version of ASIO4ALL? It's 2.16 released on June 26.

In the change log the developer writes:
• Fixed regression that would sometimes constrain bit depth to 16 bits only.

Maybe this explains the 15dB jump in your THD+N vs. power sweeps.
 
Out of curiosity: are you using the latest version of ASIO4ALL? It's 2.16 released on June 26.
I have upgraded many times to no avail. But don't know if I up to that version. I will check.
 
This is a review, detailed measurements and listening tests of TANCHJIM Luna portable headphone amplifier and DAC. It was sent to me by the company and costs US $139.99 with anime engraving or $129.99 without:
View attachment 404225
The look and feel of the adapter is excellent. The controls for volume have different shapes, aiding in adjustment without looking, with great tactile feedback:
View attachment 404226

As you see, we have both 3.5mm and 4.4 mm balanced output. Dual CS43198 combo DAC and headphone amps are used. Let's see how it performs.

TANCHJIM luna Measurements
As usual, with this class of device I can't run all of my tests. Let's start with the dashboard using balanced output at full volume:
View attachment 404227

We are getting (nice) desktop class DAC performance, landing at essential tie with the best tested in this category:
View attachment 404228

Unbalanced performance is also excellent:
View attachment 404229

Dynamic range is stunningly good in general, let alone in portable category:
View attachment 404230

That carries on even when the output is sharply reduced:
View attachment 404231
View attachment 404232

View attachment 404233

Jitter performance is just as good:
View attachment 404234

As is Multitone:
View attachment 404235

Filter response is typical but with excellent attenuation at higher frequencies:
View attachment 404236

Please ignore the noise level in the following power tests (the height of the graph). Just pay attention to max power and clipping:
View attachment 404237
View attachment 404238
View attachment 404239
View attachment 404240

As you see, we have one powerful portable adapter here. I am especially impressed with ability to drive low impedance loads with nearly 1/3 of a watt!

TANCHJIM Luna Listening Tests
I have loaned out my Sennheiser HD650 so started the testing with Hifiman HE400i. The fidelity and ability to drive this headphone was just insane. There was plenty of volume and superb detail and dynamics. Switching to Dan Clark E3 which is less efficient, still produced excellent results but needing to go almost to max volume. On one track, it clipped but on others, it sounded superb.

Conclusions
Objective measurements of Luna adapter shows best in class execution, being tied with just one other implementation of similar architecture. It costs more but it brings a very nicely executed enclosure and controls. Sound quality as predicted by the measurements is superb with ability to drive most headphones out there while being quiet enough for sensitive IEMs. There is simply no negatives here.

I am happy to recommend the TANCHJIM Luna portable headphone and DAC. We have arrived at a new era in portable products, achieving near top-end desktop class performance.

------------
As always, questions, comments, recommendations, etc. are welcome.

Any donations are much appreciated using: https://www.audiosciencereview.com/forum/index.php?threads/how-to-support-audio-science-review.8150/
Please forgive my stupid question, but the SINAD and FR you obtained is for the DAC and amp together, not just for the DAC? Impressive indeed!
 
What about output impedance? After being burned by my RME audio interface having a 30 Ohm (headphone) output impedance, causing the frequency response of multi-driver IEMs to be all over the place, I personally consider output impedance to be one of the most important criteria in such a device. Much more important than the imperceptible difference of 120dB vs 100dB vs 80dB SINAD, a 10dB frequency response error (which is about what happened with the ZERO:RED on my 1000€ interface) is an absolute dealbreaker.
I couldn't find this stat anywhere... 32Ohm performence gives an indication that it's low, but not knowing it is like buying a cat in the bag.
 
I have upgraded many times to no avail. But don't know if I up to that version. I will check.
I use FlexASIO all the time and it works like a charm for me, much better than the endless struggle ASIO4ALL put me through.
The only time FlexASIO let me down/produced unpredictable results was when I was trying to embed a Dante device over DVS.
 
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