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
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
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).
WAV:16bit|24bit|32BIT- 44.1K/48K/88.2K/96K/176.4K/192K WAV + CUE
APE:16BIT/44.1K APE + CUE
DSD format:DSF/DSD64 - DFF/DSD64 ISO
AAC, MP4A, MP3
-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.