Equipped with trailblazing audio technology developed in-house and uncompromising craftsmanship, the fourth model in the A&futura range reproduces an entirely new, natural yet dynamic sound.
Harnessing decades of audio research and development, the A&futura SE300 expands the scope of analogue sound with entirely new audio technology. A&futura SE300 is built with an ultra-refined R-2R DAC, instead of a Delta-Sigma DAC which is most commonly used in audio players. R-2R DAC, also known as Ladder DAC as it arranges resistors in a ladder form, offers a natural Hi-Fi sound with unrivalled dynamism.
- Fully Discrete 24 bit R-2R DAC for an entirely new, natural yet dynamic analogue sound
- Equipped with 96 ultra-precision 0.01% & TCR10 resistors the key to Hi-Fi sound in an Ultra-precision resistor Design
- New Dual AMP (Class A/AB) mode for crisp, dynamic sounds with high efficiency
- Option for OS (Over Sampling) / NOS (Non-Oversampling) modes, choose between a digital processed signal or pure original untouched sound
- Implemented self-developed and optimized FPGA technology relaying digital signals to the R-2R DAC through Astell&Kern's proprietary algorithm
- The SE300 comes with a reimagined, crimson-themed, intuitive user interface featuring a new album artwork search function to allow audio connoisseurs to rediscover the joy of the art form
- Supports Bluetooth 5.0 and LDAC for wireless Hi-Fi sound
The SE300 comes supplied with an R-2R DAC, instead of a Delta-Sigma DAC that is most commonly used in other audio players. R-2R DAC, also known as Ladder DAC, as it arranges resistors in a ladder form, offers natural yet dynamic Hi-Fi sounds, but it is extremely technical and difficult to execute as it requires complex refined resistor units and hard to manage current controls.
However, despite these technical challenges, after several years for development and a lot of trial and error we have managed to overcome this and create a new analog sound. In the process, we have meticulously selected each and every one of the 96 ultra-precision resistors and finalized our R-2R DAC technology.
Model SE300
Body Colour Platinum Silver
Body Material Aluminum and Stainless Steel
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 Native: DSD64(1bit 2.8MHz), Stereo / DSD128(1bit 5.6MHz), Stereo / DSD256(1bit 11.2MHz), Stereo
Output Level [Normal] Unbalanced 2.1Vrms │ 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 Bit to Bit playback
Input USB Type-C input (for charging & PC & MAC)
Outputs Unbalanced 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 About 11.18oz (317g)
Firmware upgrade supported (OTA)
Operating Temperature 0℃ ~ + 40℃ (32℉~ 104℉)
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
MD 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 Jitter 25pS (Typ)
Reference Clock Jitter 500 Femto Seconds
Built-in Memory 256GB [NAND]
External Memory microSD x1 (Max. 1TB)
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
