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Aune M2 | AK4490 Dac | Class A amp | Dual Crystek USA Clocks |

post #1 of 715
Thread Starter 

Aune M2 32BIT DSD portable music player

M2 is the 2nd generation portable music player from Aune, co-designed by the M1, B1, S18 team.
 
2.4'' IPS display
Full Aluminium Chassis
AKM AK4490 32bit flagship DAC chip
4 Digital filter options
Class A discrete transistor headphone amp integrating elements from B1 (co-designed by B1 team).
Gain adjustable for headphones and earphones
PGA2311 Analog Volume control
Over 3.1VRMS output
SNR: -116dB
HO THD+N- 0.001% (Loaded)
HO noise: 5.86uV (and at near max volume @3.1VRMS noise barely changes @6.08uV!)
LO THD+N- 0.001%
LO noise: 2.76uV
3200mAh battery
Battery life 9 hours of continuous playback.
Dual ultra-low jitter crystal oscillators (44khz, 48khz-192khz, DSD)
Asynchronous clock and CPLD technology
Micro-SD card support 128GB
Dimensions: 65*110*17 (mm).
Supported formats-
  WAV:16bit|24bit|32BIT- 44.1K/48K/88.2K/96K/176.4K/192K WAV + CUE
  FLAC:16bit|24bit- 44.1K/48K/88.2K/96K/176.4K/192K
  APE:16BIT/44.1K APE + CUE
  DSD format:DSF/DSD64 - DFF/DSD64 ISO
  AAC, MP4A, MP3
       
 

There are 3 models of M2:

 

-Aune M2- $350- Uses Japanese Crystal Oscillators

-Aune M2 Pro-$500- Uses custom Crystek (USA) Crystal Oscillators pictured below and opamps upgraded.

-Aune M2S- $650- Has the upgrades of the Pro version and adds Teflon substrate PCB, this is the only dap to use Teflon PCB which are only found in a few very expensive desktop audio gears.

 

 


Edited by T.R.A.N.C.E. - 10/21/16 at 5:39am
post #2 of 715

i have recently bought the m1. i usuually use a sony mz-rh1 (line-out) topping amp.  To be honest i prefer the m1 (no headphone amp). It has a neutral sound. Mids are warm - and seperation is excellent. I am aware of a very slight sibilance so need to pair with the right headphones - Paired with sony mdr 7750 iems it sounds great. To be honest i thought that i would be intereted in m2 - simply from basis of wider format support. But conversion from flac to 16 bit wav has been easy with mediamonkey ... so not sure about m2. Looking forward to hearing some reviews of the m2

post #3 of 715

Here is some sort of diary of the development progress:

 

http://bbs.hifidiy.net/forum.php?mod=viewthread&tid=1040163&extra=&highlight=aune&page=1

post #4 of 715
Thread Starter 

ok


Edited by T.R.A.N.C.E. - 6/16/15 at 9:49am
post #5 of 715
Thread Starter 

I'm liking the M1 I've got, and this M2 looks like it has improved in several important areas, like dac, amp, power regulation and volume control . I can definitely see the amp section has an improved discrete transistor buffer section, no doubt influenced by B1. And the AKM4990 is looking to be a great dac. The power regulation is stepped up by using beefy LDO's from TI. The volume control is improved by using the TI PGA2311 which will get rid of channel imbalances that rotary pots have. The backbone of Aune's sound is their CPLD tech for a better audio signal sent to the dac, means everything else in the chain will sound better.


Edited by T.R.A.N.C.E. - 9/2/15 at 5:26am
post #6 of 715
Quote:
Originally Posted by T.R.A.N.C.E. View Post

CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), quality = 70

No full size SD-Card. Even Aune is giving up on that frown.gif
post #7 of 715
Quote:
Originally Posted by RAFA View Post


No full size SD-Card. Even Aune is giving up on that frown.gif

come on man.. move on.. :D

post #8 of 715
Thread Starter 
Quote:
Originally Posted by RAFA View Post

No full size SD-Card. Even Aune is giving up on that frown.gif

 

It is a shame yes, I love full size SD. M2 has all circuits on a single pcb unlike M1 with double pcb's, so needed to cut down unnecessary things on the M2. They moved to single pcb on the M2 so it could have a larger battery than M1.

post #9 of 715
Quote:
Originally Posted by Vignelli View Post

come on man.. move on.. biggrin.gif

Life is hard for me, being the full size type of guy...
Quote:
Originally Posted by T.R.A.N.C.E. View Post

It is a shame yes, I love full size SD. M2 has all circuits on a single pcb unlike M1 with double pcb's, so needed to cut down unnecessary things on the M2. They moved to single pcb on the M2 so it could have a larger battery than M1.

Seeing the PCB, it might not be the fatest player... Fits nicely in the pocket.
post #10 of 715

It does not have ALAC support?

post #11 of 715
post #12 of 715
Thread Starter 

^ Real, M2's been released! Now we just have to wait until an international seller gets it.


Edited by T.R.A.N.C.E. - 6/16/15 at 9:25am
post #13 of 715
Quote:
Originally Posted by T.R.A.N.C.E. View Post

^ Real, M2's been released! Now we just have to wait until an international seller gets it.
Nothing on their website?
post #14 of 715
Thread Starter 
Quote:
Originally Posted by soundblast75 View Post

Nothing on their website?

 

Because it looks like Aune is only taking orders for Chinese at the moment, this is Aunes own forum: http://translate.google.com/translate?depth=1&hl=en&prev=search&rurl=translate.google.co.in&sl=zh-CN&u=http://bbs.hifidiy.net/forum.php%3Fmod%3Dviewthread%26tid%3D1102762%26extra%3Dpage%253D1

post #15 of 715
Quote:
Originally Posted by T.R.A.N.C.E. View Post

Because it looks like Aune is only taking orders for Chinese at the moment, this is Aunes own forum: http://translate.google.com/translate?depth=1&hl=en&prev=search&rurl=translate.google.co.in&sl=zh-CN&u=http://bbs.hifidiy.net/forum.php%3Fmod%3Dviewthread%26tid%3D1102762%26extra%3Dpage%253D1
I see,I'll be patient 👍
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