{"product_id":"smsl-do400-es9039mspro-fully-balanced-audio-decoder-and-headphone-amplifier-with-xmos-xu316-plfc-and-bluetooth-ldac","title":"SMSL DO400 ES9039MSPRO Fully-Balanced Audio Decoder and Headphone Amplifier with XMOS XU316, PLFC, and Bluetooth LDAC","description":"\u003cp\u003e\u003cstrong\u003eFlagship ES9039MSPRO DAC with Fully-Balanced Headphone Amplifier\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe SMSL DO400 is a high-performance fully-balanced audio decoder and headphone amplifier built around ESS Technology's flagship ES9039MSPRO 8-channel DAC chip. With the 3rd-generation XMOS XU316 USB interface supporting PCM 32-bit\/768 kHz and native DSD512, full MQA and MQA-CD decoding, Qualcomm Bluetooth 5.1 with LDAC, PLFC ultra-low distortion headphone amplification achieving 0.0001% THD+N, six digital inputs including I2S and AES\/EBU, and three headphone outputs alongside balanced XLR and RCA line outputs, the DO400 combines reference-grade conversion with powerful headphone drive capability in a single elegant desktop chassis.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eESS ES9039MSPRO: Flagship 8-Channel DAC\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe ES9039MSPRO is ESS Technology's current flagship DAC chip, featuring 8 independent channels of conversion in a fully-differential architecture. This silicon delivers extraordinary dynamic range, vanishingly low distortion, and the spatial precision that defines reference-grade digital playback. Every format from CD-quality to high-resolution PCM and DSD is rendered with the transparency and tonal accuracy that this converter is capable of.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePLFC Ultra-Low Distortion Headphone Amplifier\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSMSL's Precision Linear Feedback Circuit delivers clean, powerful output through three dedicated headphone connections. Distortion is held to just 0.0001% under a 16-ohm load, while output power scales from 350 mW for efficient IEMs to a substantial 3 watts for demanding planar magnetic and high-impedance dynamic headphones. Whether you listen through sensitive in-ear monitors or power-hungry full-size headphones, the DO400 provides the headroom and control your music demands.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eXMOS XU316 with Full Format Support\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 3rd-generation XMOS XU316 USB processor enables bit-perfect asynchronous transfer supporting PCM up to 32-bit\/768 kHz and native DSD512. Full MQA and MQA-CD hardware decoding reconstructs studio-authenticated master-quality audio from compatible streams and discs, delivering the three-dimensional sound field and spatial accuracy that MQA technology enables.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSix Digital Inputs for Maximum Flexibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe DO400 accommodates virtually any digital source: USB, Bluetooth 5.1, Optical, Coaxial, AES\/EBU, and I2S (HDMI LVDS). Balanced XLR and single-ended RCA line outputs feed power amplifiers or active speakers, while 4.4mm balanced, 6.35mm single-ended, and 4-pin XLR headphone outputs provide every connection standard for personal listening.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQualcomm Bluetooth 5.1 with LDAC\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eQualcomm's latest Bluetooth 5.1 platform supports LDAC, aptX HD, aptX, AAC, and SBC codecs for high-resolution wireless streaming. An external antenna ensures stable reception, and the Bluetooth input benefits from the same ES9039MSPRO conversion and PLFC amplification as every wired input.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSuspended Display with Retro-Inspired Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA suspended tempered glass display window paired with a precision-machined retro-style volume knob gives the DO400 a distinctive aesthetic that bridges classic hi-fi charm with modern digital performance. The full-function remote control provides convenient operation from across the room.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDAC Chip:\u003c\/strong\u003e ESS ES9039MSPRO (Flagship 8-Channel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Processor:\u003c\/strong\u003e XMOS XU316 (3rd Generation)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Amp:\u003c\/strong\u003e PLFC Ultra-Low Distortion Circuit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTHD+N:\u003c\/strong\u003e 0.0001% (@ 16 Ohm Load)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Decoding:\u003c\/strong\u003e PCM 32-bit\/768 kHz, DSD512 (Native)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMQA:\u003c\/strong\u003e Full Decoder + MQA-CD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e USB \/ Bluetooth \/ Optical \/ Coaxial \/ AES\/EBU \/ I2S (HDMI)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLine Outputs:\u003c\/strong\u003e XLR (Balanced) \/ RCA (Single-Ended)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadphone Outputs:\u003c\/strong\u003e 4.4mm Balanced \/ 6.35mm SE \/ 4-Pin XLR Balanced\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth:\u003c\/strong\u003e 5.1 Qualcomm (LDAC, aptX HD, aptX, AAC, SBC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e Suspended Tempered Glass Window with Retro Knob\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote:\u003c\/strong\u003e Full-Function Remote Control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSMSL DO400 Fully Balanced Audio Decoder \u0026amp; Headphone Amplifier\u003c\/li\u003e\n\u003cli\u003ePower Cable\u003c\/li\u003e\n\u003cli\u003eUSB Cable\u003c\/li\u003e\n\u003cli\u003eBluetooth Antenna\u003c\/li\u003e\n\u003cli\u003eRemote Control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-es9039mspro-dac-headphone-amp-overview.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-es9039mspro-flagship-dac-chip.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-plfc-ultra-low-distortion-circuit.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-xmos-xu316-pcm768-dsd512.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-mqa-cd-full-decoding.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-bluetooth-5-1-ldac-streaming.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-usb-optical-coaxial-inputs.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-aes-ebu-i2s-digital-inputs.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-4-4mm-6-35mm-xlr-outputs.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-balanced-xlr-rca-line-out.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-headphone-amplifier-stage.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-suspended-display-retro-knob.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-full-function-remote-control.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-system-integration-setup.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-cnc-aluminum-chassis.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-specifications-part01.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-specifications-part02.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-performance-measurements.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-thd-n-distortion-data.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-output-power-chart.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-format-support-guide.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-dimensions-and-weight.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-accessories-details.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-box-contents.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-warranty-information.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-additional-specifications.jpg\" alt=\"SMSL DO400 Feature\"\u003e\u003c\/p\u003e","brand":"SMSL","offers":[{"title":"Default Title","offer_id":48729272549568,"sku":"10014298","price":3990.7,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/smsl-do400-dac-headphone-amp-angle-view.webp?v=1786067889","url":"https:\/\/hifichic.com\/products\/smsl-do400-es9039mspro-fully-balanced-audio-decoder-and-headphone-amplifier-with-xmos-xu316-plfc-and-bluetooth-ldac","provider":"HIFICHIC","version":"1.0","type":"link"}