EarMen TR-Amp - Donald DAC - USB DAC - Preamp - Headphone Amp – Battery powered, ES9038Q2M, 400mW, 3700mA Battery, MQA rendering, SNR +128dB SNR A-Weighted (Discussion Thread Earmen)
Apr 1, 2020 at 5:04 PM Thread Starter Post #1 of 15

Dobrescu George

Reviewer: AudiophileHeaven
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Hello everyone.

I'm bad at making threads. But could not find any for TR-AMP. PLS erase this if it already existed.

I am just copying the information about TR-AMP in this first post





USB DAC - Preamp - Headphone Amp – Battery powered
All audio formats PCM 32bit/384kHz, MQA and native DSD128: Beautiful and neutral sound always with you.

NEW portable product FROM new Brand cooked in HIGH END Kitchen of Auris Audio.

In cooperation with Auris Audio well known European High End Audio company EarMen presents a TR-Amp, Battery powered High quality DAC/Headphone amp/Preamp with impressive characteristics.

TR-Amp with power up to 400mW will enable you to listern almost all known headphones.

ES9038Q2M SABRE Reference DAC turn your portable music in *High End Dimension*

The versatile audio input accepts PCM up to 384kHz, DSD256 via DoP, native DSD128 and MQA.

EarMen TR-Amp is a licensed and standard-compliant MQA native hardware renderer.

Using the critically acclaimed ESS patented HyperStream© II QUAD DACTM architecture and Time Domain Jitter Eliminator, EarMen TR-Amp delivers a performance level that will satisfy the most demanding audio enthusiast.

TR-Amp’s great characteristics are available by using the best components and materials.

  • NEW ES9038Q2M SABRE 32 Reference DAC Industry’s highest performance 32-bit mobile audio DAC with unprecedented dynamic range and ultra-low distortion
  • Super Low ESR tantal capacitors in power supply
  • Includes a high level EarMen shielded female USB-A to USB-C Adaptor
  • 3700mA battery with up to 10h of music enjoyment
  • Separate DATA and Charging USB type C ports allows you to use it all day long in your system
  • Analog volume control for Preamp and Headphone amp
  • Double Enjoyment with 2 pairs of headphones simultaneously
  • Analog switch for Direct DAC or PreAmp function
  • ALL METAL aluminum housing eliminate external noise sources


EarMen and Auris Audio - High End Partnership
Sharing same ownership, it was natural to use same R&D resources already approved in design of High End audio products.

Texas Instruments headphone amplifier
TR-Amp headphone amp use Texas Instruments High Fidelity TPA6120 chip and allows music, not the amplifier, to be heard. TPA6120 current-feedback AB amplifier architecture delivers high bandwidth, extremely low noise, and up to 128dB of dynamic range

Three key features make current-feedback amplifiers outstanding for audio. The first feature is the high slew rate that prevents odd order distortion anomalies. The second feature is current-on-demand at the output that enables the amplifier to respond quickly and linearly when necessary without risk of output distortion. When large amounts of output power are suddenly needed, the amplifier can respond extremely quickly without raising the noise floor of the system and degrading the signal-to-noise ratio. The third feature is the gain-independent frequency response that allows the full bandwidth of the amplifier to be used over a wide range of gain settings.

No Noise

Using a Super LOW ESR tantal capacitors, high grade components in power-supply design and 4 layer golden plated PCB technology from PC and smart phone industry we reduced the noise to minimum. This will improve super fine details especially in Hi-Res files where you can feel and hear the difference.



CNC aluminum milled enclosure
TR-Amp is robust and solid. Enclosure is made from high grade aluminum

From Mp3 to MQA
32bit/384kHz PCM, DoP DSD256, Native DSD128 and MQA. Play It All Direct From Your Pocket!

Use it all around from home to travel. TR-Amp can be great substitution for any DAC.

Made in Europe
TR-Amp designed, produced and assembled in Europe. SMT production line is from Swiss and all components are sourced from European distribution. Up to 5 years of extended warranty is available on demand.

STREAM TIDAL MASTERS AROUND THE WORLD
EarMen TR-Amp support Tidal Masters (MQA) playback from iPhones and Android smartphones. MQA's technology folds high-resolution files into smaller files that can be streamed on the go. As MQA Renderer, EarMen products complete the unfolding process, allowing music lovers to enjoy a wider selection of high-res music. Click here to learn more about how MQA works.

STREAM QOBUZ’S VAST CATALOG OF OUTSTANDING HI-RES MUSIC
EaMen TR-Amp support Qobuz high-res playback from iPhones, Android smartphones, and MacOS and Windows computers. Qobuz streams and downloads music in bit-perfect FLAC, the most widely used format for mastering and archiving, at resolutions of up to 24-bit/192kHz. With TR-Amp, listeners can enjoy more than 40 million tracks in lossless 16-bit CD resolution and over 2 million hi-res files. Click here to learn more about how Qobuz works.



PCM 32bit /384kHz

DoP DSD256

Native DSD128

MQA rendering



SNR of +128dB SNR A-Weighted,

-112,5dB THD+N,

400mW into 16 Ohm

Download Windows driver here


IMG_8109_900x.jpg


IMG_8100_3000x.jpg


IMG_8101_900x.jpg


IMG_8108_900x.jpg



Now that that is done with, we can start the actual thread and discussion from the post #2 :)
 
Last edited:
Apr 1, 2020 at 5:10 PM Post #2 of 15

Dobrescu George

Reviewer: AudiophileHeaven
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Okay, so first off, NO AFFILIATES. I am a reviewer, I just made the thread because it did not exist before.

Now then,

My initial impressions:

- Clean sound
- Better than HPA3U (I had it around at the moment of receiving TR-AMP), in terms of detail, clarity, control. Can get most headphones louder with less distortion. HPA3U can get louder, but becomes distorted.
- Can drive HE6SE, if you don't need above 100 dB!!!
- Not a looker, but very practical
- Me loving them Type-C ports
- Separate port for chrg and data is lovely
- No noise if listening while charging
- No delay, Driver works perfect
- Included cable is not recommended
- 3.5mm and 6.3mm jacks, for a portable, me loves
- Can drive T1 from Beyer perfectly
- weird, but if you get any hiss, it is at the mid of its range, from 11 to 13 o'clock. No hiss above or bellow it.
- overall, black background, good clarity
- intuitive usage
- Testing the battery life and other features currently
 
Apr 28, 2020 at 3:08 PM Post #6 of 15

Makiah S

Formerly known as Mshenay
Sponsor: HeadAmp
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IMG_20200428_135156_609.jpg


Have to say thus far I too am enjoying this unit! Ton of power and great clarity
 
Jun 14, 2020 at 6:46 AM Post #8 of 15

marcusd

Founder and Reviewer at Headfonics
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Jul 15, 2020 at 6:56 PM Post #9 of 15

Makiah S

Formerly known as Mshenay
Sponsor: HeadAmp
Joined
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Shame were not seeing more discussion here! Just us reviewers lol

Yea my reviews are up, but frankly I quite like the TR-Amp. It's a touch bright but it pairs nicely with my E-MU Purplehearts and my Ether CX both of which I use when I'm not in my office depending on what I'm listening too on my Cell
 
Jul 31, 2020 at 7:36 PM Post #11 of 15

Dobrescu George

Reviewer: AudiophileHeaven
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I also finished my in-depth written review about the Earmen TR-AMP, and man this was an amazing little piece, with lots of driving power and a nice natural sound. I also mention all of its downsides in the review, and there are a few, but happily at the end of the day, the Earmen TR-AMP is pretty much a dream device for the porice point.

I will also transfer my review to Head-Fi in the following hours! :)

https://www.audiophile-heaven.com/2020/07/victorious-machine-earmen-tr-amp-dacamp.html

Earmen-TR-AMP-DAC-AMP-Portable-Headphone-Desktop-Audiophile-Heaven-Review-19.jpg
 
Aug 24, 2020 at 5:28 AM Post #12 of 15

nanu

New Head-Fier
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Hi Guys,

Did any of you experience issues when using the Earmen Sparrow with Android DAPs or Phones? Specifically clicks and pops?
I have tried to use it with 2 Android phones and a Fiio X7ii using native Tidal app and UAPP both the applications suffer this issue but on one of the phones I did not have any issues with UAPP (did not test Tidal app on this phone)

Although after about 2 minutes of playback the click and pops stop and the playback is then flawless.

Have not tried any iDevices, but with Windows 10 PCs there is no such issue ( none with a old Windows Phone as well )
 
Aug 27, 2020 at 8:16 AM Post #13 of 15

Krissdevalnor

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Location
France
Hello
When I plug qobuz into my Android phone coupled with TR AMP, the LED stays green even on Hi res files. But I thought that it had to change color depending on the quality of the files. Is there an adjustment to be made somewhere?
 
Aug 27, 2020 at 2:40 PM Post #15 of 15

nanu

New Head-Fier
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Location
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Hello
When I plug qobuz into my Android phone coupled with TR AMP, the LED stays green even on Hi res files. But I thought that it had to change color depending on the quality of the files. Is there an adjustment to be made somewhere?


White Device is ON
Green Connected / PCM
Magenta MQA
Cyan DSD
Red (flashing) Battery is < 20%
Blue (flashing) Charging
 

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