On order
Warranty: 2 year(s)
With its release, Astell&Kern has expanded the potential of the SE180 once again.
SEM4, born from the key concept of ‘Shape Your Sound’ is equipped with the AK4493SEQ dual DAC, the latest DAC from Asahi Kasei, which minimizes loss and noise interference from the original sound while offering 14 hours of playback performance — the longest among SEM modules.
SEM4 supports up to 32bit/768kHz, Native DSD512 and you will be able to enjoy even more vivid, original sound with the introduction of digital audio remaster (DAR) technology.
The SEM4 module is equipped with a dual AK4493SEQ DAC, the latest product from Asahi Kasei, which has been implemented in an Astell&Kern product for the first time worldwide.
The AK4493SEQ DAC is a premium DAC that utilizes AKM’s VELVET SOUND™ technology to play natural sounds with even lower noise and distortion, offering the best low distortion traits and a wide dynamic range.
With technology such as the advanced switch and capacitor that is created to achieve low-power consumption, it provides amazing play performance and low noise for 14 hours of playback, the longest among SE180 modules.
SEM4 supports Native DSD512 and up to 32bit/768kHz with Astell&Kern’s excellent audio technology,allowing you to fully enjoy your favorite music.
SEM4 features digital audio remaster (DAR) technology — the first time the technology has been applied in an Astell&Kern portable player.
DAR technology is developed to upsample the sample rate of the sound source being played to go beyond the limits of the source format.
The high sample rate allows more refined play and offers delicate and analog-like original sound, helping you to enjoy the richness of the original sound, subtle differences in the nuance of the music and rich sounds at a higher level.
* The DAR function can be turned on and off and you may select it to suit the source sound and your own preferences.
* Max PCM rate 384kHz/DSD256 conversion play is supported, and the files will be converted to and played in the sample rates that fit the source sound.
Next generation AMP technology is also applied in the SEM4 all-in-one module.
From the selection of OP-AMP parts, to circuit design, board layout and tuning, everything has been completely redesigned to produce the best sound.
The complete physical separation of the system unit and the DAC module perfectly prevents noise from the power and RF noises from the system unit,meaning no noise will interrupt your music.
In addition, the separation of signals by balanced and unbalanced channels with no interference delivers the ultimate sound.
AK ULTIMATE SOUND SOLUTION, TERATON ALPHA
TERATON ALPHA is AK's ultimate Sound Solution to produce audio playback that is close to the originalsound through the audio output interface by use of effective power noise removal, efficient powermanagement and amplification with minimal distortion.
TERATON ALPHA features Astell&Kern's patented technologies, which are the result of tens ofthousands ofhours of continuous research and development to produce sound close to the original sound the artist andproducer intended.
| Product Name | SEM4 |
| Model | PAP14 |
| Body Material | Aluminum, Stainless Steel, Polycarbonate |
| Body Color | Moon Silver |
| Sample Rate | PCM : 8kHz ~ 768kHz (8/16/24/32bits per Sample) DSD Native: DSD64(1bit 2.8MHz), Stereo / DSD128(1bit 5.6MHz), Stereo DSD256(1bit 11.2MHz), Stereo / DSD512(1bit 22.4MHz), Stereo |
| Outputs | Unbalanced Out (3.5mm), Balanced Out (2.5mm, only 4-pole supported / 4.4mm, only 5-pole supported) |
| Output Level | [Normal Gain] Unbalanced 2Vrms / Balanced 4Vrms (Condition No Load) [High Gain] Unbalanced 3Vrms / Balanced 6Vrms (Condition No Load) |
| DAC | AKM AK4493SEQ x 2 (Dual DAC) |
| Decoding | Support up to 32bit / 768kHz Bit-to-Bit playback |
| Dimensions | 3.03"(77mm)[W] x 2.99"(76mm)[H] x 0.78"(19.9mm)[D] |
| Weight | 3.17oz (90g) |
| Operating Temperature | 0℃ ~ + 40℃ (32℉~ 104℉) |
| Playback Time | about 14hours (Standard : FLAC, 16bit, 44.1kHz, Unbalanced, Vol.50, LCD Off) |
| Frequency Response | ±0.09dB (Condition : 20Hz~20kHz) Unbalanced / ±0.04dB (Condition : 20Hz~20kHz) Balanced ±0.65dB (Condition : 20Hz~70kHz) Unbalanced / ±0.65dB (Condition : 20Hz~70kHz) Balanced |
| S/N | [Normal Gain] 121dB @ 1kHz, Unbalanced / 121dB @ 1kHz, Balanced [High Gain] 125dB @ 1kHz, Unbalanced / 125dB @ 1kHz, Balanced |
| Crosstalk | [Normal Gain] -134dB @ 1kHz, Unbalanced / -138dB @ 1kHz, Balanced [High Gain] -135dB @ 1kHz, Unbalanced / -143dB @ 1kHz, Balanced |
| THD+N | [Normal Gain] 0.0003% @ 1kHz, Unbalanced / 0.0004% @ 1kHz, Balanced [High Gain] 0.0005% @ 1kHz, Unbalanced / 0.0006% @ 1kHz, Balanced |
| IMD SMPTE | 0.0003%, 800Hz 10kHz (4:1), Unbalanced / 0.0003%, 800Hz 10kHz (4:1), Balanced |
| Output Impedance | 3.5mm (1ohm) / 2.5mm (1.5ohm) / 4.4mm (1.5ohm) |
Astell&Kern is synonymous with excellence in the realm of high fidelity. With unparalleled expertise and a commitment to superior sound quality, Astell&Kern pushes the boundaries of musical listening. Each product is crafted with passion and precision, delivering an uncompromising audio experience.
Immerse yourself in a world of crystal-clear musical details with our Astell&Kern digital audio players. Each model is a technological masterpiece, blending elegant design with exceptional sound performance. Enjoy lossless playback of your favorite tracks, with unparalleled clarity and fidelity.
Discover a total sonic immersion with our Astell&Kern audio headphones. Designed to reproduce every musical nuance with remarkable precision, our headphones transport you to the heart of your favorite music. Lightweight, comfortable, and equipped with cutting-edge technology, our audio headphones offer a captivating listening experience.
Reimagine your listening experience with our Astell&Kern DACs. DACs digitally convert audio signals into exquisite analog quality, offering enhanced sound clarity and dynamics. Enjoy every note and chord with exceptional precision, thanks to our high-end DACs.
Enhance your audiophile experience with our Astell&Kern accessories. From high-quality leather cases to audiophile-grade cables, our accessories are designed to optimize your listening experience and protect your valuable equipment.
Explore our exclusive collection of Astell&Kern products and discover the difference in high-quality musical listening. At iacono.fr, we are committed to providing you with the best audiophile products, and Astell&Kern is the ideal choice for discerning music enthusiasts.
Your quest for sonic perfection begins here with Astell&Kern on iacono.fr.
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