{"title":"astell-kern","description":null,"products":[{"product_id":"astell-kern-sp2000t-portable-hi-res-music-player-co66hh","title":"Astell\u0026Kern SP2000T Portable Hi-Res Music Player","description":"\u003cdiv class=\"col_narrow\"\u003e\n\u003ch3 class=\"hp-title\"\u003eTriple AMP System is the Next Generation of AMP Technology\u003c\/h3\u003e\n\u003cp\u003eThe SP2000T exceeds the standard approach to AMP Mode selection, based on the type of music you are listening to.\u003c\/p\u003e\n\u003cp\u003eSelect between TUBE AMP mode, OP AMP mode or the brand new HYBRID AMP mode.\u003c\/p\u003e\n\u003cp\u003eOP AMP mode puts Astell\u0026amp;Kern's AMP technology expertise to use, delivering extreme clarity and dynamic sound, while TUBE AMP mode provides a uniquely warm and musical sound.\u003c\/p\u003e\n\u003cp\u003eHYBRID AMP mode - a first for digital audio players - enhances the resolution and clarity of the existing TUBE AMP mode to express more musical detail. HYBRID AMP mode combines the advantages of retro analog performance and high-resolution output, giving you the pleasure of a brand new tonal characteristic.\u003c\/p\u003e\n\u003cp\u003eExperience the unique sound enhancements that AMP technology has to offer.\u003c\/p\u003e\n\u003ch3 class=\"hp-title\"\u003eVacuum Tube Amplifier Compatible with 2.5mm, 3.5mm, and 4.4mm Output Jacks\u003c\/h3\u003e\n\u003cp\u003eThe SP2000T supports all output types, with no restriction on the type of receiver used, so you can enjoy the unique characteristics of the vacuum tube.\u003c\/p\u003e\n\u003ch3 class=\"hp-title\"\u003eReal Vacuum Tube\u003c\/h3\u003e\n\u003cp\u003eEquipped with the portable-friendly dual-triode KORG Nutube, for a unique TUBE AMP sound.\u003c\/p\u003e\n\u003cp\u003eNutube offers a reliable continuous playback time of approximately 30,000 hours.\u003c\/p\u003e\n\u003cp\u003eIt features an anode grid filament structure which operates the same as a triode vacuum tube. It's much smaller, consumes far less power and yet delivers the same audio with rich overtones.\u003c\/p\u003e\n\u003ch3 class=\"hp-title\"\u003eHybrid AMP Mode\u003c\/h3\u003e\n\u003cp\u003eHYBRID AMP mode, supported for the first time by a DAP, is the essence of Astell\u0026amp;Kern's advanced AMP design technology.\u003c\/p\u003e\n\u003cp\u003eNew combinations of sounds can be enjoyed in HYBRID AMP mode, which is based on the OP AMP sound and addition of tasteful warm tones unique to TUBE AMP technology.\u003c\/p\u003e\n\u003ch3 class=\"hp-title\"\u003eInternal Mechanical Design to Minimize Noise\u003c\/h3\u003e\n\u003ch2 class=\"subhead\"\u003eSpecial Design to Minimize Microphonic Noise\u003c\/h2\u003e\n\u003cp\u003eSP2000T features a special design tailored to minimize microphonics (the phenomenon wherein the vacuum tubes generate noise even from a small external impact).\u003c\/p\u003e\n\u003cp\u003eMultiple design iterations and verifications have been performed over a long period of time to fix the structural issues of vacuum tubes that generate microphonic noise even from a small impact or vibration.\u003c\/p\u003e\n\u003cp\u003eFor minimization of mechanical impact and vibration, both sides of the vacuum tube are fixed with flexible silicone covers, and the vacuum tube has been modularized so it is physically separate from the PCB.\u003c\/p\u003e\n\u003cp\u003eAstell\u0026amp;Kern goes to great lengths to innovate and design these small components that make a big difference in the quality and sound of their products that no other manufacturer can match.\u003c\/p\u003e\n\u003ch2 class=\"subhead\"\u003eSeparation Using Magnetic Polarity\u003c\/h2\u003e\n\u003cp\u003eA structure that uses magnetic forces to float the amp in the air, thus minimizing noise from the vacuum tube itself, which is generated when it is exposed to mechanical impact or vibration.\u003c\/p\u003e\n\u003ch2 class=\"subhead\"\u003eSilver Plating Shield Can\u003c\/h2\u003e\n\u003cp\u003eAstell\u0026amp;Kern products apply shield cans so that noise and electromagnetic interference, which occur when the countless parts are in operation, do not affect the audio block.\u003c\/p\u003e\n\u003cp\u003eThe SP2000T has taken it a step further by applying highly conductive, hyper-pure silver plating on the existing shield cans for perfect shielding that provides excellent audio performance.\u003c\/p\u003e\n\u003ch3 class=\"hp-title\"\u003eQuad-DAC for Perfection of Superior Sound\u003c\/h3\u003e\n\u003cp\u003eThe SP2000T is equipped with four ES9068AS DACs, this allows two DACs per channel for dedicated decoding.\u003c\/p\u003e\n\u003cp\u003eThe SP2000T achieves a more detailed and balanced sound with great depth and spatial realism.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Astell\u0026Kern","offers":[{"title":"Default Title","offer_id":45319643201559,"sku":"AK:SP2000T-BLK","price":374.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0806\/0639\/6439\/files\/blxy35tzoxyb_2e12fd29-e2b4-4d4f-af0e-bdf6e57e7daf.jpg?v=1784652823"},{"product_id":"astell-kern-a-ultima-sp1000-portable-music-player-nyzluu","title":"Astell\u0026Kern A\u0026ultima SP1000 Portable Music Player","description":"\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOcta-Core CPU for Next-Level Performance\u003c\/li\u003e\n\u003cli\u003eAK4497EQ Dual DAC for Highest Sound Quality\u003c\/li\u003e\n\u003cli\u003e4.1 Inch HD Display\u003c\/li\u003e\n\u003cli\u003eHighest Quality Audio of SP1000\u003c\/li\u003e\n\u003cli\u003ePortable and Durable Aluminum Body\u003c\/li\u003e\n\u003cli\u003eDNLA-Based AK Connect App\u003c\/li\u003e\n\u003cli\u003eOpen APP Service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe \"M\" in SP1000M does not stand for a specific word, but rather encompasses directions that the product aims to pursue:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMini: Smaller than the SP1000\u003c\/li\u003e\n\u003cli\u003eMania: For users who have a mania for original sound\u003c\/li\u003e\n\u003cli\u003eMobility: More portable\u003c\/li\u003e\n\u003cli\u003eMate: Perfect for any time and anywhere\u003c\/li\u003e\n\u003cli\u003eMaximum: Produces the highest quality sound\u003c\/li\u003e\n\u003cli\u003eMoment: Listeners are in the present with the music\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUsing Open APP Service\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Open APP Service enables the user to install specific APK music streaming apps to the device. Copy the desired APK into the Open Service folder of the product and install the relevant App in the Menu-Service of the product.\u003c\/p\u003e","brand":"Astell\u0026Kern","offers":[{"title":"Gold","offer_id":45319643529239,"sku":"AK:SP1000-GLD","price":449.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0806\/0639\/6439\/files\/jf54o9fdvwch_2ca3e419-f6d4-459a-9b39-4fcde881bdc9.jpg?v=1784652833"},{"product_id":"astell-kern-se180-portable-music-player-d1awrd","title":"Astell\u0026Kern SE180 Portable Music Player","description":"\u003cp style=\"color: #cd6a28; font-size: 24px; font-family: proxima n w01 smbd; text-transform: uppercase;\"\u003eInterchangeable All-in-One Module\u003c\/p\u003e\n\u003cp\u003eWith the SE180, Astell\u0026amp;Kern wanted to expand on the multi-DAC idea that was first introduced with the SE200.\u003c\/p\u003e\n\u003cp\u003eLike the SE200, different DACs can be used in one DAP, but Astell\u0026amp;Kern wanted to do something different for the SE180. The introduction of Interchangeable All-in-One Modules, carry on the multi-DAC experience, but add a new and fun experience. This reflects the DNA of the innovation that the A\u0026amp;futura line is known for.\u003c\/p\u003e\n\u003cp\u003eThe SE180 is a module-separated type product that increases the convenience of connection between the main body of the player and the module. It features an innovative double locking design that securely connects each component while providing smooth lines that naturally flow without any sense of separateness between the two pieces.By applying different DAC\/AMP configurations, tuning and outputs for each module, the user can choose the most suitable module for Premium Hi-Fi Sound.\u003c\/p\u003e\n\u003cp\u003eThe default configuration module contains the ESS ES9038PRO, an 8-channel DAC mainly used for premium home audio equipment. This DAC provides a wider dynamic range and more detailed sophistication. The module supports 2.5mm, 3.5mm and 4.4mm connections to allow for a greater variety of headphones\/IEMs.\u003c\/p\u003e\n\u003cp style=\"color: #cd6a28; font-size: 24px; font-family: proxima n w01 smbd; text-transform: uppercase;\"\u003eCircuit Separation Structure of Main Body and Module\u003c\/p\u003e\n\u003cp\u003eBy physically separating the main body from the All-in-One module, Astell\u0026amp;Kern completely block power and RF noise that may occur from the main body. This creates an independent structure that prevents noise from interfering with music playback..\u003c\/p\u003e\n\u003cp style=\"color: #cd6a28; font-size: 24px; font-family: proxima n w01 smbd; text-transform: uppercase;\"\u003eModules Double Lock for Ease of Use\u003c\/p\u003e\n\u003cp\u003eThe biggest difference between the SE180 and other products that use interchangeable modules is that the SE180 uses a double-locking mechanism rather than screws to fasten the module to the body.\u003c\/p\u003e\n\u003cp\u003eThe first locking structure attaches the module and the body.\u003c\/p\u003e\n\u003cp\u003eThe second locking structure informs the user that the module has been securely fastened to the main body.\u003c\/p\u003e\n\u003cp\u003eThe spring supported internal connectors of the main body allow reliable audio signal connection and are used to prevent connection failure in case of external shock to the player when on the go.\u003c\/p\u003e\n\u003cp style=\"color: #cd6a28; font-size: 24px; font-family: proxima n w01 smbd; text-transform: uppercase;\"\u003eAstell\u0026amp;Kern Audio Technology Forms the TERATON ALPHA Sound Solution\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAK ULTIMATE SOUND SOLUTION, TERATON ALPHA\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTERATON ALPHA is AK's ultimate Sound Solution to produce audio playback that is close to the original sound through the audio output interface by use of effective power noise removal, efficient power management and amplification with minimal distortion.\u003c\/p\u003e\n\u003cp\u003eTERATON ALPHA features Astell\u0026amp;Kern's patented technologies, which are the result of tens of thousands of hours of continuous research and development to produce sound close to the original sound the artist and producer intended.\u003c\/p\u003e\n\u003cp style=\"color: #cd6a28; font-size: 24px; font-family: proxima n w01 smbd; text-transform: uppercase;\"\u003eNext Generation Advanced AMP technology\u003c\/p\u003e\n\u003cp\u003eIt is extremely difficult push beyond your previous best. With the SE180, Astell\u0026amp;Kern applied Next Generation AMP technology to push beyond the sound quality others feel is acceptable for Premium Hi-Fi Sound to produce the best sound possible. From the selection of OP-AMP parts, to circuit design, board layout and tuning, everything has been completely redesigned to produce the best sound. It is difficult to improve the Signal-to-Noise Ratio (SNR) while maintaining a high output.\u003c\/p\u003e\n\u003cp style=\"color: #cd6a28; font-size: 24px; font-family: proxima n w01 smbd; text-transform: uppercase;\"\u003eAdoption of Full HD Display for Improved Image Quality\u003c\/p\u003e\n\u003cp\u003eThe SE180 features a full HD screen to provide a higher quality display.\u003c\/p\u003e\n\u003cp style=\"color: #cd6a28; font-size: 24px; font-family: proxima n w01 smbd; text-transform: uppercase;\"\u003eUpgrades to Enhance the User Experience\u003c\/p\u003e\n\u003cp\u003eIt is extremely difficult to push beyond your previous best. With the SE180, we applied Next Generation AMP technology to push beyond the sound quality others feel is acceptable for Premium Hi-Fi Sound to produce the best sound possible. From the selection of OP-AMP parts, to circuit design, board layout and tuning, everything has been completely redesigned to produce the best sound. It is difficult to improve the Signal-to-Noise Ratio (SNR) while maintaining a high output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNavigation Bar for Easier Navigation \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTo provide more convenient movement through the player user interface that is consistent with an Android smartphone experience, the SE180 features a new navigation bar, the first in an Astell\u0026amp;Kern player. Now you can easily navigate with a single touch and deliver music playback information from any screen. The new one swipe feature moves you to the previous screen.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAK File Drop to Enjoy Wireless Transfers \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe new AK File Drop function in the SE180 makes files 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. Music file management is now possible with a cable-less, wireless solution.\u003c\/p\u003e\n\u003cp style=\"color: #cd6a28; font-size: 24px; font-family: proxima n w01 smbd; text-transform: uppercase;\"\u003eWireless Hi-Fi Sound Through BT Sync\u003c\/p\u003e\n\u003cp\u003eThe newly introduced BT Sync function connects the SE180 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 back in high-quality on the SE180 using the BT Sync function.\u003c\/p\u003e\n\u003cp style=\"color: #cd6a28; font-size: 24px; font-family: proxima n w01 smbd; text-transform: uppercase;\"\u003eReal-time information confirmed by light\u003c\/p\u003e\n\u003cp\u003eThe SE180 features a LED volume wheel which displays various playback information, including volume level and bit-rate of the track currently playing. *LED can be turned on or off according to user setting.\u003c\/p\u003e\n\u003cp style=\"color: #cd6a28; font-size: 24px; font-family: proxima n w01 smbd; text-transform: uppercase;\"\u003eEquipped with Bluetooth 5.0 and Support for Wireless 24-bit aptX-HD, LDAC Codecs\u003c\/p\u003e\n\u003cp\u003eThe latest Bluetooth version provides high sound quality with the convenience of wireless playback to headphones and IEMs. Bluetooth 5.0 features faster transmission speed, greater range and a more stable wireless connection when compared to Bluetooth 4.2. Both LDAC and aptX HD is supported to provide audiophiles with the best wireless sound possible.\u003c\/p\u003e\n\u003cp\u003eMQA (Master Quality Authenticated) is an award-winning British technology that delivers the sound of the original master recording. The master MQA file is fully authenticated and is small enough to stream or download. Visit mqa.co.uk for more information. Astell\u0026amp;Kern A\u0026amp;futura SE100 includes MQA technology, which enables you to play back MQA audio files and streams, delivering the sound of the original master recording. MQA and the Sound Wave Device are registered trade marks of MQA Limited. © MQA Limited 2016.\u003c\/p\u003e\n\u003cp\u003eQualcomm® aptX™ HD is a product of Qualcomm Technologies, Inc. and\/or its subsidiaries. Qualcomm is a trademark of Qualcomm Incorporated, registered in the United States and other countries. Qualcomm® aptX™ HD is a trademark of Qualcomm Technologies International, Ltd., registered in the United States and other countries.\u003c\/p\u003e\n\u003cp\u003eLDAC and LDAC logo are trademarks of Sony Corporation.\u003c\/p\u003e","brand":"Astell\u0026Kern","offers":[{"title":"Default Title","offer_id":45319643627543,"sku":"AK:SE180-SLV","price":224.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0806\/0639\/6439\/files\/ezzxaeq0rnma_c3a32f81-071e-4d69-8e24-c4d9190d20b6.jpg?v=1784652835"},{"product_id":"astell-kern-sa700-portable-music-player-2buhe5","title":"Astell\u0026Kern SA700 Portable Music Player","description":"\u003cp\u003e\u003cstrong\u003eFirst DAP Using AKM AK4492ECB DAC\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe SA700 is the first DAP to use a AK4492ECB Dual DAC to give a new sound signature. AKM's AK4492ECB is a DAC that aims to achieve the best performance in the industry by utilizing the technology obtained by developing AK4497EQ. It has a lower power consumption and similar audio performance compared to AK4497EQ, making it the best DAC for a portable DAP. Only Astell\u0026amp;Kern's Sound Technology know-how has made the DAC's performance even more perfect. Now you can enjoy premium sound close to the original performance with the SA700 and the AK4492ECB.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUnchanging Value, Stainless Steel\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe SA700 uses stainless steel, which is corrosion-resistant and durable, for maximum material strength and beauty. Since it takes a lot of time, skill and cost to process the material, it is often only used for expensive products. The SA700 uses stainless steel because it provides the perfect sound.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIntuitive LED Indicator\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe LEDs around the volume wheel are not just visual effects, but provide the listener information including volume and status of the currently playing song. Different colors are displayed depending on the bit depth of the song being played, and 150 levels of red saturation are displayed to reflect the current player volume.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUsing Open APP Service\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Open APP Service enables the user to install specific APK music streaming apps to the device. Copy the desired APK into the Open Service folder of the product and install the relevant App in the Menu-Service of the product.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEmotional Retro Design\u003c\/li\u003e\n\u003cli\u003eIntuitive LED Indicator\u003c\/li\u003e\n\u003cli\u003eNew Special GUI\u003c\/li\u003e\n\u003cli\u003eStainless Steel Body for Premium Sound\u003c\/li\u003e\n\u003cli\u003eIdeal Size for Portability\u003c\/li\u003e\n\u003cli\u003eDual DAC of AK4492ECB from AKM\u003c\/li\u003e\n\u003cli\u003e32bit \/ 384kHz, Native DSD256 support\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Astell\u0026Kern","offers":[{"title":"Black","offer_id":45319643758615,"sku":"AK:SA700-BLK","price":194.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0806\/0639\/6439\/files\/g0tv2ttfx7xc_6ed7fc11-ff45-4910-81b1-63baba562346.jpg?v=1784652842"},{"product_id":"astell-kern-xb10-portable-bluetooth-receiver-nbr15m","title":"Astell\u0026Kern XB10 Portable Bluetooth Receiver","description":"\u003cp\u003eMake your favorite wired headphones wireless with the Astell\u0026amp;Kern XB10 Portable Bluetooth Receiver. It uses Bluetooth 4.1 technology with support for the aptX HD codec for an enhanced listening experience with similarly compatible devices. The XB10 provides a 32.8' wireless range, allowing you to go about your day untethered. It has a 3.5mm unbalanced output for common headphones and a 2.5mm balanced output for use with audiophile headphones.\u003c\/p\u003e\n\u003cp\u003eThe XB10 features a built-in microphone, allowing you to use your wired headphones for phone calls even if they don't have their own microphone. The built-in battery will provide up to 5 hours of streaming or talk time and up to 300 hours of standby time.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eQualcomm aptX HD\u003c\/strong\u003e\u003cbr\u003eWith aptX HD compatibility, the XB10 is capable of transmitting up to 24-bit\/48 kHz audio that is designed to be faithful to the original audio file.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eBuilt-In DAC\u003c\/strong\u003e\u003cbr\u003eThe XB10 is equipped with a Hi-Fi DAC (digital-analog converter) capable of reproducing sound up to 24-bit\/192 kHz.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eDual Audio Outputs\u003c\/strong\u003e\u003cbr\u003eDesigned to work with most headphones, the XB10 is equipped with both 3.5mm unbalanced \u0026amp; 2.5mm balanced audio outputs.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eiOS \u0026amp; Android Compatible\u003c\/strong\u003e\u003cbr\u003eThe XB10 is designed to be compatible with all iOS and Android devices, plus many other Bluetooth-compatible devices.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eHands-Free Function\u003c\/strong\u003e\u003cbr\u003eThe hands-free function allows you to receive calls when using earphones, and if they don't have a microphone built-in, you can use the one built into the XB10.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eIncludes Attachment Clip\u003c\/strong\u003e\u003cbr\u003eWhen you want to enjoy your music but don't want to be tied down, simply mount the included clip to the XB10 and clip it to your shirt or bag.\u003c\/p\u003e","brand":"Astell\u0026Kern","offers":[{"title":"Default Title","offer_id":45319643791383,"sku":"AK:AKXB10-BLK","price":10.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0806\/0639\/6439\/files\/6sysbfaj2mpr_d2bd250e-1fa2-4503-8c9b-d2bbee1ec4ab.jpg?v=1784652842"},{"product_id":"astell-kern-a-norma-sr25-portable-music-player-tgd5el","title":"Astell\u0026Kern A\u0026norma SR25 Portable Music Player","description":"\u003cp\u003e\u003cstrong\u003ePerformance Mode for Ultra High-Resolution Sound\u003c\/strong\u003e\u003cbr\u003eThe SR25 supports native DSD256 and 32bit\/384kHz audio for the first time in an Astell\u0026amp;Kern standard product and boasts performance that cannot be compared with other competitors' products.\u003c\/p\u003e\n\u003cp\u003eThe SR25, which is smaller than other players, has been developed to achieve stable, ultra-high-resolution sound. We have developed a new Performance Mode with the SR25 that automatically optimizes and sets the memory mode in the system according to the data size of the source being played.\u003c\/p\u003e\n\u003cp\u003eAs the resolution of the sound source increases, it is necessary to process a large amount of data rapidly. If this part is not optimized, sound breakup may occur. To prevent this, the SR25 uses the new Performance Mode to adjust and optimize the system in order to produce near perfect sound quality when playing back high resolution audio.\u003c\/p\u003e\n\u003cp\u003eExperience ultra-high resolution with the SR25's Performance Mode, which reproduces even the smallest, minute details of the original recording the artist was looking for, without compromise.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerfect Circuit Design for the Highest Sound Quality\u003c\/strong\u003e\u003cbr\u003eProper playback of DSD256 and 32bit\/384kHz digital audio requires a high-performance CPU and fast memory speed, along with an audio path suitable for high-speed signal processing.\u003c\/p\u003e\n\u003cp\u003eOptimizing the length of the audio path is a very important part, as failing to properly do so can create a time delay between the signals resulting in sound abnormalities.\u003c\/p\u003e\n\u003cp\u003eWith the SR25, the Astell\u0026amp;Kern team developed a completely different PCB design from the existing SR15 to process the high-speed signals where required, resulting in audio path lengths that are the same, allowing for super-high-resolution sound without any delay.\u003cbr\u003eFurthermore, newly designed audio patterns and power circuits for distortion-free signal transmission and noise rejection are applied to each channel.\u003c\/p\u003e\n\u003cp\u003eThe result is an Ultra-Low Noise Filter that allows you to experience Astell\u0026amp;Kern's flawless sound, with Zero Noise, on the SR25.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmbark on a Musical Journey That Lasts the Entire Day\u003c\/strong\u003e\u003cbr\u003eIf the power supply's stable design and efficiency are not properly taken into consideration, the input\/output voltage difference becomes large, and when the output current is large, the output voltage can become unstable. This leads to excessive noise being generated, which can be a major cause of poor sound quality. In addition, poor power efficiency will result in shorter playback time.\u003c\/p\u003e\n\u003cp\u003eThe SR25 set a big challenge for the Astell\u0026amp;Kern engineering team – add the longest playback time of any previous Astell\u0026amp;Kern product, while maintaining the signature Astell\u0026amp;Kern quality sound, and a low-noise floor. In the SR25, the team not only applied highly efficient components, but they focused on developing circuit optimizations to get the most out of their performance.\u003cbr\u003eThe result is up to 21 hours of continuous playtime, more than double the previous generation SR15, with no compromise in sound quality.\u003c\/p\u003e\n\u003cp\u003eNo need to worry about battery life while on your daily journey, just have fun on your Music Trip with the SR25.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNo Compromise on Sound, Even When Connected Wirelessly\u003c\/strong\u003e\u003cbr\u003eIn addition to 24-bit music playback via aptXTM HD Bluetooth as in previous Astell\u0026amp;Kern players, the SR25 adds LDAC support to give users more options to listen to high-resolution audio wirelessly.\u003c\/p\u003e\n\u003cp\u003eNow you can enjoy Astell\u0026amp;Kern's high-quality sound when paired to Bluetooth earphones, headphones and speakers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAstell\u0026amp;Kern's Exclusive Metalworking Technology\u003c\/strong\u003e\u003cbr\u003eAstell\u0026amp;Kern products are often compared to art sculptures, with colorful faces and angles not found in other products. This precise design work is based on Astell\u0026amp;Kern's long-accumulated know-how and highly precise metalworking technology.\u003c\/p\u003e\n\u003cp\u003eIn order to produce this unique style Astell\u0026amp;Kern is famous for, 5-axis machining is performed instead of traditional 3-axis machining used in general machining. All metal must be processed at once without interruption.\u003cbr\u003eIn addition to 5-axis machining, Astell\u0026amp;Kern has perfected it's crafting of metal through thousands of hours of trial and error. Only after mastering these techniques that Astell\u0026amp;Kern has developed, can the beauty of the metal shine through.\u003c\/p\u003e\n\u003cp\u003eThe vibration-free processing machines used by Astell\u0026amp;Kern are the same ones used by expensive Swiss luxury watch manufacturers. This is reflected in the crafting of the volume wheel which is processed precisely like the crown of a luxury watch for the best operating feel.\u003cbr\u003eAstell\u0026amp;Kern products are designed to achieve perfect integration at whatever angle you look at it in your hands.\u003c\/p\u003e\n\u003cp\u003eThe Aluminum body on the SR25 provides maximum sound quality while suppressing noise as much as possible. The use of laser ground extension technology gives you the best sound possible, without interference or distortion.\u003c\/p\u003e\n\u003cp\u003eAstell\u0026amp;Kern combines these small parts to make a big difference in the quality of our products that no other manufacturer can match.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLatest System Optimization for a Better User Experience\u003c\/strong\u003e\u003cbr\u003eThe SR25 firmware is based on Android 9.0, which adds a number of behind the scene features and upgrades to provide more stable operation over previous versions of Android OS. The use of Android 9.0 ensures the most popular music streaming apps installed via Open APP will be fully compatible with your Astell\u0026amp;Kern player now and with future app updates.\u003c\/p\u003e\n\u003cp\u003eAstell\u0026amp;Kern customizes Android to provide a fully optimized system and user interface, designed to give users a smooth, fluid musical playback experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUsing Open APP Service\u003c\/strong\u003e\u003cbr\u003eThe Open APP Service enables the user to install specific APK music streaming apps to the device. 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