Astell&Kern Future | SE300

The new A&futura SE300 by Astell&Kern

It is the first DAP of the ad house
implement an R2R resistance ladder digital-to-analog conversion.
The available finish is platinum silver.

SE300: The future of analog sound

The A&futura line by Astell&Kern represents the unceasing commitment of the house
Korean for innovation. SE300, is the fourth model to leave the range
A&futura, and it is a superior DAP player which inherits all the technology
of the range and also expands it, implementing new ones.

The SE300 features an ultra-refined R-2R resistor-scale conversion DAC, dual
Class A/AB amplifiers with proprietary TERATON ALPHA technology and, for the first time in a DAP, proprietary FPGA optimization. This is the philosophy behind Astell&Kern sound.

Realizing 24-bit decoding with the R-2R DAC.
The R-2R DAC inside the SE300 consists of 48 pairs (23xR and 25x2R) for a total of 96 ultra-precise resistors to generate the analog signal, realizing true 24-bit Hi-Fi decoding.

Dual amplifier stage in Class A and AB

The SE300 features a Dual AMP mode .
Class A amplification , which creates low distortion and natural sound , and Class AB amplification , which reproduces dynamic sounds with high efficiency.

These two modes allow users to freely choose between the two internal amplifiers based on their listening preferences or the genre of music being played. Class A amplifier mode
An analog amplifier stage with linear output is integrated inside the SE300 , which amplifies the signal without noticeable distortion or loss , and the result is a smooth, warm and natural sound.

The analog signal that comes out of the R-2R DAC is immediately amplified by the class A stage, remaining completely original and without losses.

The analog amplifier stage in Class AB mode, on the other hand, offers a powerful output with the advantage of high efficiency.
The sound is very dynamic, defined, with less harmonic distortion.

Double gain mode, for a superlative Hi-Fi experience

For use with headphones that are difficult to drive , or the most sensitive IEMs (in-ear
monitor), an audio device must always provide an adequate output level , depending on the specifications of the connected device.
The SE300 features a dual gain mode , to perfectly match a wide range of headphones, while always maintaining optimal sound output.
The gain can be set on two levels: " Normal " or " High Gain " mode, where
the latter generates a high current output for maximum driver control. If you choose the balanced output, you will have a maximum of 6 Vrms to drive any high impedance headphones .

TERATON ALPHA , the essence of A&K audio technology
It would not have been possible to combine an R-2R DAC with ultra-precision resistors with a class A amplifier, considered impossible to miniaturise, without the innovative TERATON ALPHA audio technology. The SE300 is an innovative DAP reader with precise current and temperature control loops, TERATON ALPHA technology and an optimized FPGA design.
TERATON ALPHA technology is the result of intense research, and it is one
Astell&Kern prerogative, designed for audio reproduction as much as possible
similar to the original sound thanks to effective noise reduction, more efficient power management and constant amplification.

Optimized OS/NOS FPGA system support

NOS (Non-Over Sampling) Mode

In NOS mode, the player reproduces the pure original sound without the intervention of
digital processes after decoding the R-2R DAC.

OS Mode (Over Sampling)

In OS mode, the digital processes introduced after the DAC cause the dynamics
expands, with more detail and sonic intelligibility...

	Synthesis	Description
	5.46 inch Full HD display	The 5.46-inch Full HD display makes the SE300 user experience simpler and more accurate at the same time, satisfying the user for its large and extremely legible dimensions .
	Native DSD256, 32bit/384kHz support	The SE300 supports DSD256 files , up to 32bit/384kHz, allowing you to fully enjoy your favorite music wherever you are .
	ReplayGain automatically and smoothly adjusts playback volume	ReplayGain has also been included , which evenly adjusts the volume of different sound sources. This way you can listen to your playlists without having to turn the volume up or down when changing songs. Supports files up to 24bit/192kHz.
	AK File Drop for wireless file transfer	The SE300's new AK File Drop feature makes file transfers easier and more convenient. Using AK File Drop, you can freely transfer files wirelessly through a PC, smartphone or FTP program located on the same network.
	Wireless Hi-Fi sound via BT Sink	The BT Sink function connects the SE300 to an external device via Bluetooth, similar to connecting a smartphone with a BT speaker. Music from an external device, such as a smartphone, can now be played in high quality on the SE300 thanks to the BT Sink function.

DESIGN