Item is almost open box new, pristine condition, all original contents with extra navy blue genuine leather case.

Astell & Kern A& Futura SE300 DAP, Digital Audio Player, Standard Edition:
Original retail price is $1,900

please see folling links:

https://www.astellnkern.com/product/product_detail.jsp?productNo=146

https://www.astellnkern.com/product/product_detail.jsp?productNo=146


Astell&Kern product logo red

ASTELL&KERN BRINGS PURE ANALOG SOUND ONE STEP CLOSER WITH THE A&FUTURA SE300

  • Standard Edition with Leather Case 

  • Features fully discrete 24 bit R-2R DAC
  • New UI with "Crimson" theme and option for OS / NOS modes
  • New Dual-AMP (Class A/AB) mode
  • A&K self-developed FPGA technology
  • Bluetooth 5.0 and Dual Wireless (2.4 & 5GHz) HiFi
General Specifications
 
    - Model  SE300 Titan
    - Body Color  SE300 Titan: Titan
    - Body Material  SE300 Titan: Titanium
    - Display  5.46inch HD 1080 x 1920 touch screen
    - Supported Audio Formats  WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF
    - Sample rate  PCM : 8kHz ~ 384kHz (8/16/24/32bits per Sample)
    - DSD : DSD64(1bit 2.8MHz), Stereo / DSD128(1bit 5.6MHz), Stereo / DSD256(1bit 11.2MHz), Stereo
    -Output Level  [Normal] Unbalanced 2Vrms │ Balanced 4Vrms (Condition No Load)
                            [High] Unbalanced 3Vrms │ Balanced 6Vrms (Condition No Load)
    - CPU  Quad-core
    - DAC  Full Discrete R-2R
    - Decoding  Support up to 32bit / 384kHz playback
    - Input  USB Type-C input (for charging & PC & MAC)
    - Outputs  Unbalanced Out (3.5mm), Optical Out(3.5mm)
                     Balanced Out (2.5mm, only 4-pole supported | 4.4m, only 5-pole supported)
     - Wi-Fi  802.11 a/b/g/n/ac (2.4/5GHz)
     - Bluetooth  V5.0 (A2DP, AVRCP, Qualcomm® aptX™ HD, LDAC)
     - Dimensions  3.01” (76.45mm)[W] x 5.49” (139.45mm)[H] x 0.69” (17.6mm)[D]
    - Weight    SE300 Titan: About 11.46oz (325g)
    - Feature Enhancements  Firmware upgrade supported (OTA)
    - Operating Temperature  0℃ ~ + 40℃ (32℉~ 104℉)
 
Audio Performance

Frequency Response  ±0.038dB (Condition : 20Hz~20kHz) Unbalanced │Balanced
                                      ±0.45dB (Condition : 20Hz~70kHz) Unbalanced │Balanced
S/N  114dB @ 1kHz, Unbalanced │ 115dB @ 1kHz, Balanced (Normal Gain)
        115dB @ 1kHz, Unbalanced │ 115dB @ 1kHz, Balanced (High Gain)
Crosstalk  -135dB @ 1kHz, Unbalanced │ -144dB @ 1kHz, Balanced
THD+N  0.006% @ 1kHz, Unbalanced │ 0.006% @ 1kHz, Balanced
IMD SMPTE  0.005% 800Hz 10kHz (4:1) Unbalanced │Balanced
Output Impedance  Unbalanced Out 3.5mm (1.3ohm) │ Balanced Out 2.5mm (1.3ohm), 4.4mm(1.3ohm)

Clock Source
Clock Jitter  25pS (Typ)
Reference Clock Jitter  500 Femto Seconds

Storage Capacity 
Built-in Memory  256GB [NAND]
External Memory  microSD x1 (Max. 1TB)

Battery
Capacity  5,050mAh 3.8V Li-Polymer
Charge Time  about 3.5hours (9V 1.67A Charging)
Playback Time  about 12hours (Standard : FLAC, 16bit, 44.1kHz, Vol.50, LCD Off, Normal Gain)

Supported OS
         Windows 10,11(32/64bit) MAC OS X 10.7