{"product_id":"astell-kern-a-futura-se300","title":"Astell\u0026Kern A\u0026futura SE300 | Digital Audio Player","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/astell-kern-horizontal-logo-cf203a-red.jpg?v=1676570802\" alt=\"Astell\u0026amp;Kern product logo red\" style=\"display: block; margin-left: auto; margin-right: auto; width: 40%;\"\u003e\u003c\/p\u003e\n\u003ch4\u003eAstell\u0026amp;Kern Brings Pure Analog Sound One Step Closer with the A\u0026amp;futura SE300\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eFeatures fully discrete 24 bit R-2R DAC\u003c\/li\u003e\n\u003cli\u003eNew UI with \"Crimson\" theme and option for OS \/ NOS modes\u003c\/li\u003e\n\u003cli\u003eNew Dual-AMP (Class A\/AB) mode\u003c\/li\u003e\n\u003cli\u003eA\u0026amp;K self-developed FPGA technology\u003c\/li\u003e\n\u003cli\u003eBluetooth 5.0 and Dual Wireless (2.4 \u0026amp; 5GHz) HiFi\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eGenuine \u003ca title=\"Astell\u0026amp;Kern A\u0026amp;futura SE300 Case\" href=\"https:\/\/bloomaudio.mom\/products\/astell-kern-se300-case\"\u003eAstell\u0026amp;Kern SE300 premium case\u003c\/a\u003e available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"Astell\u0026amp;Kern SE300 marketing banner with player over water background\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/astell-kern-se300-banner_88a497d6-4b06-4d9d-b5f1-cc3f4d4ad66d.jpg?v=1683738573\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"bloom-discontinued\"\u003e\n\u003ctable width=\"90%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan style=\"color: #a30e0b;\"\u003e\u003cstrong\u003e**DISCONTINUED:\u003c\/strong\u003e\u003c\/span\u003e Meze Astell\u0026amp;Kern's SE300 digital audio player is sold out and discontinued. Check out their newer DAP, the \u003ca href=\"https:\/\/bloomaudio.mom\/collections\/astell-kern\/products\/astell-kern-sp4000\" title=\"AstellKern SP4000 DAP\"\u003eSP4000\u003c\/a\u003e!\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ctable width=\"90%\" bgcolor=\"”#f6f6f6”\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan style=\"color: #a30e0b;\"\u003e\u003cstrong\u003eBloom's Take\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAstell\u0026amp;Kern’s SE300, the 4th in the A\u0026amp;futura line, inherits A\u0026amp;K's innovative and experimental efforts within the series while expanding the scope of sound. The SE300 delivers A\u0026amp;K’s first R2R DAC along with an amp section that can operate in class A or class AB mode. They’ve also included their own flavor of FPGA, developed and optimized in-house. It’s noteworthy to add that every aspect of SE300’s user interface and experience has been drastically improved over previous A\u0026amp;futura DAPs.\u003c\/p\u003e\n\u003cp\u003eA\u0026amp;K doesn’t miss a beat here when it comes to its reputation for premium materials, look and feel, resuming the evolution of their design language that began with the \u003ca title=\"Astell\u0026amp;Kern A\u0026amp;ultima SP3000 Flagship DAP\" href=\"https:\/\/bloomaudio.mom\/products\/astell-kern-sp3000\"\u003eSP3000\u003c\/a\u003e. We’ve noticed the SE300 on our teams’ desks more frequently since its release. It sports TONS of options for tweaking your sound and player efficiency, but you’ll need to be aware of how those options affect your battery (8-12 hours of life depending on your cocktail of settings.)\u003c\/p\u003e\n\u003cp\u003eSE300 maintains the detail and resolution for which A\u0026amp;K is known, but with a push towards a true reference exhibition. And with its NOS\/OS and Amp Mode options, you get further range above the core tuning (check out \u003ca title=\"Highly Refined Innovation Astell\u0026amp;Kern SE300 Review\" href=\"https:\/\/bloomaudio.mom\/blogs\/articles\/highly-refined-innovation-astell-kern-se300-review\"\u003eour full SE300 review\u003c\/a\u003e to see some of the combinations we felt worked well with some popular headphones and IEMs.)\u003c\/p\u003e\n\u003cp\u003eThe SE300 is certainly competitive with other DAPs in its price range, but we feel it comes surprisingly close to \u003ca title=\"Astell\u0026amp;Kern A\u0026amp;ultima SP3000 Flagship DAP\" href=\"https:\/\/bloomaudio.mom\/products\/astell-kern-sp3000\"\u003eSP3000's\u003c\/a\u003e performance given the difference in cost and is a great blend of A\u0026amp;futura refinement and innovation.\u003c\/p\u003e\n\u003cp\u003eNeed some guidance getting your music files onto your Astell\u0026amp;Kern DAP? Check out our \u003ca href=\"https:\/\/bloomaudio.mom\/blogs\/articles\/how-do-i-get-music-onto-my-astell-kern-dap\" title=\"How to Get Your Music on Your Astell\u0026amp;Kern DAP\"\u003eupdated Audiophile 101 guide\u003c\/a\u003e!\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/19xFy4iT5zM?si=G_lOiNP57QolFBQH\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch3\u003eSE300 Titan Limited Edition\u003c\/h3\u003e\n\u003cp\u003eThe SE300 Titan Limited Edition is a pioneer in material innovation, delivering both a premium feel and unparalleled sound from the R-2R DAC and analog amp.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eConstructed using \u003cstrong\u003eGrade 5 Titanium alloy\u003c\/strong\u003e (a blend of aluminum and vanadium), the SE300 Titan LE is designed to increase the internal corrosive resistance and strength inherent in pure titanium. The alloy embodies exceptional strength while retaining a light weight and is the material of choice in aerospace, medical, and a wide range of other applications. Its ability to withstand heat and electrical conductivity also positions it as an optimal substance for reducing temperature variations and electrical interference within R-2R DACs and analog amplifiers. The integration of Titanium alloy into the SE300 Titan relied exclusively on ultra-precision manufacturing methods such as the use of 6-axis control robots, highly skilled engineering hands, and a Swiss-made 5-axis vibration-free CNC machine.\u003c\/p\u003e\n\u003cp\u003eDiscover the SE300 Titan Limited Edition and embrace the cutting-edge analog sound experience from A\u0026amp;K at your fingertips. The limited edition package for the SE300 Titan includes a leather case.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Astell\u0026amp;Kern SE300 Titanium edition dramatic 3 quarter front over gray shadowy background\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/astell-kern-se300-titan-concept.jpg?v=1694663014\"\u003e\u003c\/p\u003e\n\u003ch3\u003eFully Discrete 24bit R-2R DAC\u003c\/h3\u003e\n\u003cp\u003eThe SE300 comes supplied with an R-2R DAC instead of a Delta-Sigma DAC commonly used in other players. R-2R DAC, also known as 'Ladder DAC,' offers natural yet dynamic Hi-Fi sound:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e24-bit Decoding\u003c\/strong\u003e\u003cbr\u003e48 pairs (23xR and 25x2R) of 96 ultra-precision resistors are arranged to create analog signals, realizing true Hi-Fi 24-bit decoding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUltra-precision Resistor Design\u003c\/strong\u003e\u003cbr\u003eA\u0026amp;K inspected each specifically selected ultra-precision resistor of 0.01% error range for accuracy and precision.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUltra-precision TCR10 Specs\u003c\/strong\u003e\u003cbr\u003eTo create Hi-Fi sound without distortions within such an extreme precision design, the SE300 comes with special TCR10 specs to minimize changes in the 0.01% resistor error range.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"Astell\u0026amp;Kern SE300 3 quarter top over U2 vinyl jacket\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/astell-kern-se300-ba0-lifestyle.jpg?v=1698339382\"\u003e\u003c\/p\u003e\n\u003ch3\u003eClass A\/AB Dual AMP Mode\u003c\/h3\u003e\n\u003cp\u003eThe SE300 comes with Dual-AMP mode:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eClass A Mode\u003c\/strong\u003e\u003cbr\u003eOffers the best linear output, amplifying signals without distortion or loss of signal and providing soft, warm, and natural sounds for accurate reproduction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eClass AB Mode\u003c\/strong\u003e\u003cbr\u003eOffers a powerful output with the added benefit of high efficiency, presenting dynamic and crisp sound with less harmonic distortion.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/astell-kern-se300-amp-mode.jpg?v=1683746729\" alt=\"Astell\u0026amp;Kern screenshots of AMP class and gain modes\" style=\"display: block; margin-left: auto; margin-right: auto; width: 70%;\"\u003e\u003c\/p\u003e\n\u003ch3\u003e2-Step Gain Mode\u003c\/h3\u003e\n\u003cp\u003eThe SE300 supports a 2-step Gain Level mode to create a perfect match for a wide range of headphones and IEMs. \"Normal\" and \"High Gain\" settings allow for high current output to create a powerful sound and excellent driver control. With up to 6 Vrms from Balanced connections, driving high-impedance headphones has never been easier.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eOptimized FPGA OS \/ NOS Modes\u003c\/h3\u003e\n\u003cp\u003eThe SE300 comes with exclusively developed FPGA and provides optimized OS \/ NOS modes. The FPGA uses an optimized, proprietary design over off-the-shelf semiconductor chipsets, and supports the most ideal OS (Over Sampling) \/ NOS (Non-Over Sampling).\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/astell-kern-se300-NOS.jpg?v=1683749262\" alt=\"Astell\u0026amp;Kern OS\/NOS FPGA workflow diagram\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOS (Non-Over Sampling) Mode\u003c\/strong\u003e\u003cbr\u003ePlayer reproduces the pure original sound without any digital processing, allowing users to enjoy true, unprocessed sounds decoded by the R-2R DAC.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOS (Over Sampling) Mode\u003c\/strong\u003e\u003cbr\u003eOS mode offers partial digital processing that expands the bandwidth of the original signal to offer impressive details, with an expansive sense of space and crisp, clear sounds.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/astell-kern-se300-OS-mode.jpg?v=1683749365\" alt=\"Astell\u0026amp;Kern OS\/NOS mode conversion rate diagram\"\u003e\u003c\/p\u003e\n\u003ch3\u003eOther Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSupports native DSD256, 32bit\/384kHz\u003c\/li\u003e\n\u003cli\u003eAK File Drop wireless transfers\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWireless Hi-Fi sound via BT Sink\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eReplayGain automatically and uniformly adjusts volume\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"Astell\u0026amp;Kern SE300 screen closeup with connected Vision Ears earphones on wood table\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/astell-kern-se300-ba1-lifestyle.jpg?v=1698340052\"\u003e\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum and Stainless Steel | Grade 5 Titanium Alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported OS:\u003c\/strong\u003e Windows 10, 11 (32\/64bit) Mac OS X 10.7\u003c\/li\u003e\n\u003cli\u003e\u003ca title=\"Astell \u0026amp; Kern Policy Page\" href=\"https:\/\/us.astellnkern.com\/pages\/policies\" target=\"_blank\"\u003eAstell\u0026amp;Kern 1 Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e 5.46\" HD 1080 x 1920 touch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported Audio Formats:\u003c\/strong\u003e WAV, FLAC, WMA, MP3, OGG, APE, AAC, ALAC, AIFF, DFF, DSF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSample Rate\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCM:\u003c\/strong\u003e 8kHz ~ 384kHz (8\/16\/24\/32-bits per Sample)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDSD Native:\u003c\/strong\u003e DSD64 (1-bit, 2.8MHz) Stereo | DSD128 (1-bit, 5.6MHz) Stereo | DSD256 (1-bit, 11.2MHz) Stereo\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Level\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e[Normal]\u003c\/strong\u003e UnBAL 2.Vrms | BAL 4Vrms (No Load)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e[High]\u003c\/strong\u003e UnBAL 3.Vrms | BAL 6Vrms (No Load)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCPU:\u003c\/strong\u003e Quad-Core\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDAC:\u003c\/strong\u003e Full Discrete R-2R\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDecoding:\u003c\/strong\u003e Support up to 32-Bit \/ 384kHz Playback\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput:\u003c\/strong\u003e USB-C (for charging \u0026amp; PC\/MAC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnBAL:\u003c\/strong\u003e 3.5mm (Optical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBAL:\u003c\/strong\u003e 2.5mm, 4-pole | 4.4mm, 5-pole\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWi-Fi:\u003c\/strong\u003e 802.11 a\/b\/g\/n\/ac (2.4\/5GHz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth:\u003c\/strong\u003e v5.0 (A2DP, AVRCP, Qualcomm® aptX™ HD, LDAC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 3.01\" x 5.49” x 0.69\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e About 11.18 oz\u003c\/li\u003e\n\u003cli\u003eFirmware upgrade supported (OTA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temp:\u003c\/strong\u003e 0℃ ~ + 40℃ (32℉~ 104℉)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAudio\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e±0.038dB (20Hz~20kHz)\u003c\/li\u003e\n\u003cli\u003e±0.45dB (20Hz~70kHz)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS\/NR (Normal):\u003c\/strong\u003e 114dB @ 1kHz, UnBAL │ 115dB @ 1kHz, BAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS\/NR (High):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e115dB @ 1kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrosstalk:\u003c\/strong\u003e -135dB @ 1kHz, UnBAL │ -144dB @ 1kHz, BAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTHD+N:\u003c\/strong\u003e 0.006% @ 1kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIMD SMPTE\u003c\/strong\u003e: 0.005% 800Hz 10kHz (4:1)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Impedance:\u003c\/strong\u003e 1.3Ω, all outputs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eClock Source\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eJitter:\u003c\/strong\u003e 25pS (Typ)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReference Clock Jitter:\u003c\/strong\u003e 500 Femto Seconds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStorage Capacity\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-In Memory:\u003c\/strong\u003e 256GB [NAND]\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Memory:\u003c\/strong\u003e (x1) microSD (Max. 1TB)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 5050mAh, 3.8V Li-Polymer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharge Time:\u003c\/strong\u003e About 3.5 hours (9V\/1.67A General Charging)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlayback Time:\u003c\/strong\u003e About 12 hours (FLAC, 16-bit, 44.1kHz, Normal Gain, Vol. 50, LCD Off)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSE300 Device\u003c\/li\u003e\n\u003cli\u003eLeather Case included only with Titan LE | \u003ca href=\"https:\/\/bloomaudio.mom\/products\/astell-kern-se300-case\" title=\"Astell\u0026amp;Kern SE300 Cases\"\u003eSE300 cases available\u003c\/a\u003e separately\u003c\/li\u003e\n\u003cli\u003eUSB-C Cable\u003c\/li\u003e\n\u003cli\u003eQuick Start Guide\u003c\/li\u003e\n\u003cli\u003emicroSD card slot cover\u003c\/li\u003e\n\u003cli\u003eProtective Films\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Astell\u0026Kern","offers":[{"title":"Silver","offer_id":40065406435403,"sku":"AK-SE300-SLV","price":999.0,"currency_code":"USD","in_stock":false},{"title":"Titan Limited","offer_id":40065406468171,"sku":"AK-SE300-TI","price":2499.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/astell-kern-se300-titan-0-thumb.jpg?v=1694662433","url":"https:\/\/bloomaudio.mom\/products\/astell-kern-a-futura-se300","provider":"Bloom Audio","version":"1.0","type":"link"}