{"product_id":"gustard-u26-usb-digital-interface","title":"GUSTARD U26 Amanero USB Digital Interface with OCXO Clock","description":"\u003cp\u003e\u003cstrong\u003eGUSTARD U26 USB Digital Interface\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe GUSTARD U26 is not a DAC or an amplifier – it is the digital bridge that ties your whole audio system together. Designed in collaboration with Amanero Technologies, it transforms USB input into ultra-precise digital output for your DAC via I²S, AES, coaxial, and optical connections. With native DSD2048 and PCM 1.536MHz support, a temperature-controlled OCXO clock system, and independent power regulation, it delivers clean, stable, timing-perfect data for the rest of your chain to shine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAmanero-Based USB Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eGustard worked directly with Amanero in Italy to customize the USB interface around a deeply customized ARM Cortex-M7 processor (i.MX RT1011). The result is powerful real-time processing, ultra-low latency, and stable high-sample-rate transfer, with flexible ASIO driver parameters for latency, buffering, and clock alignment tuning.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFull-Format Hi-Res Support\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe U26 handles PCM up to 32-bit\/1.536MHz and DSD up to DSD2048 native (DSD512 via DoP). Whether you are playing standard 44.1kHz CD rips or studio-grade ultra-high-resolution masters, it passes bit-perfect data to your DAC with clocking stability that keeps music grounded and lifelike.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOCXO + K2 Precision Clock System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA temperature-controlled OCXO crystal oscillator and K2 ultra-low-noise PLL generate dual clock signals – 98.3040MHz and 90.3168MHz – with ±0.1ppm stability. These clocks suppress jitter at the source, delivering sharper transients, improved imaging, and a blacker noise floor. A 10MHz BNC input accepts an external reference clock for tighter synchronization.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFull Isolation Technology\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA 200Mbps isolation chip physically separates the USB input from the processing circuitry, keeping PC-borne electrical noise out of the audio path. A custom CPLD then re-shapes the I²S signal after isolation to remove residual jitter, so your DAC receives a pristine, phase-accurate feed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDual I²S-H (LVDS) Outputs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTwo I²S-over-HDMI outputs use LVDS signaling for clean, high-bandwidth transmission, with adjustable pin assignment for broad DAC compatibility. AES\/EBU (XLR), coaxial, and optical outputs complete a flexible connection set that integrates easily with DACs, amplifiers, and powered speakers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReference-Grade Linear Power Supply\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA built-in linear power supply with an audio-grade toroidal transformer feeds two independent rails for the USB and digital circuits separately. The main filter capacitors deliver a total of 80,000µF, with dual rectifier bridges and discrete regulators ensuring robust, stable current delivery over long listening sessions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFull Aluminum Chassis\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe full aluminum alloy housing shields against EMI and provides structural integrity, while the internal layout keeps the transformer, digital processing, and clock sections electrically and physically isolated. On your desk, the U26 blends into any minimalist hi-fi stack.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e USB Digital-to-Digital Converter (DDC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Input:\u003c\/strong\u003e USB Type-B, USB 2.0 High-Speed (UAC2), plug-and-play on Mac\/Windows\/Linux, OTG mobile support\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Engine:\u003c\/strong\u003e Gustard × Amanero custom UAC2, ARM Cortex-M7 (i.MX RT1011)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePCM Support:\u003c\/strong\u003e Up to 32-bit\/1.536MHz (I²S); 24-bit\/384kHz (AES, coaxial); 24-bit\/192kHz (optical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDSD Support:\u003c\/strong\u003e Native DSD64–DSD2048 via I²S; DoP up to DSD512\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital Outputs:\u003c\/strong\u003e Dual I²S-H (LVDS over HDMI, adjustable pinout), AES\/EBU (XLR, 110Ω), Coaxial (RCA, 75Ω), Optical (TOSLINK)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClock System:\u003c\/strong\u003e SC-cut OCXO master clock + K2 high-performance PLL (98.3040\/90.3168MHz, ±0.1ppm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClock Input:\u003c\/strong\u003e 10MHz BNC (50Ω, 0–20dBm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation:\u003c\/strong\u003e 200Mbps full isolation chip between USB and digital circuits; CPLD signal reshaping\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply:\u003c\/strong\u003e Linear PSU with audio-grade toroidal transformer, dual independent rails, 80,000µF filter capacitance, dual rectifier bridges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e \u0026lt;15W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Input:\u003c\/strong\u003e 115V\/230V, 50\/60Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (W×H×D):\u003c\/strong\u003e 330 × 260 × 65 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4.8 kg (unit); 6.3 kg packaged\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColors:\u003c\/strong\u003e Black, Silver\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGUSTARD U26 USB digital interface\u003c\/li\u003e\n\u003cli\u003ePower cord\u003c\/li\u003e\n\u003cli\u003eUSB cable\u003c\/li\u003e\n\u003cli\u003eUser manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/gustard-u26-usb-digital-interface-hero.jpg?v=1787225437\" alt=\"gustard u26 usb digital interface hero\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/gustard-u26-ocxo-clock-k2-pll.jpg?v=1787225436\" alt=\"gustard u26 ocxo clock k2 pll\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/gustard-u26-usb-digital-interface-introduction.jpg?v=1787225436\" alt=\"gustard u26 usb digital interface introduction\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/gustard-u26-full-format-hi-res-support.jpg?v=1787225431\" alt=\"gustard u26 full format hi res support\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/gustard-u26-pcm1536k-dsd2048-support.jpg?v=1787225434\" alt=\"gustard u26 pcm1536k dsd2048 support\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/gustard-u26-full-isolation-technology.jpg?v=1787225436\" alt=\"gustard u26 full isolation technology\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/gustard-u26-isolated-usb-signal-path.jpg?v=1787225432\" alt=\"gustard u26 isolated usb signal path\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/gustard-u26-dual-i2s-lvds-outputs.jpg?v=1787225436\" alt=\"gustard u26 dual i2s lvds outputs\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/gustard-u26-i2s-hdmi-connection.jpg?v=1787225435\" alt=\"gustard u26 i2s hdmi connection\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/gustard-u26-gustard-amanero-usb-engine.jpg?v=1787225432\" alt=\"gustard u26 gustard amanero usb engine\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/gustard-u26-arm-cortex-m7-processor.jpg?v=1787225435\" alt=\"gustard u26 arm cortex m7 processor\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/gustard-u26-digital-outputs-aes-coax-optical.jpg?v=1787225436\" alt=\"gustard u26 digital outputs aes coax optical\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/gustard-u26-10mhz-clock-input.jpg?v=1787225432\" alt=\"gustard u26 10mhz clock input\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/gustard-u26-clock-distribution-design.jpg?v=1787225436\" alt=\"gustard u26 clock distribution design\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/gustard-u26-toroidal-linear-power-supply.jpg?v=1787225433\" alt=\"gustard u26 toroidal linear power supply\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/gustard-u26-technical-specifications.jpg?v=1787225436\" alt=\"gustard u26 technical specifications\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/gustard-u26-dimensions-measurements.jpg?v=1787225430\" alt=\"gustard u26 dimensions measurements\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/gustard-u26-in-the-box-package.jpg?v=1787225432\" alt=\"gustard u26 in the box package\"\u003e\u003c\/p\u003e","brand":"GUSTARD","offers":[{"title":"Black","offer_id":48851652739264,"sku":"10010720","price":7997.31,"currency_code":"HKD","in_stock":true},{"title":"Silver","offer_id":48851653394624,"sku":"10011244","price":7997.31,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/7085\/2544\/files\/gustard-u26-usb-digital-interface-main-front.jpg?v=1787226078","url":"https:\/\/hifichic.com\/products\/gustard-u26-usb-digital-interface","provider":"HIFICHIC","version":"1.0","type":"link"}