{"product_id":"lumin-u2-digital-transport-streamer","title":"Lumin U2 Digital Transport\/Streamer","description":"\u003ch1\u003eLumin U2 Streamer\u003c\/h1\u003e\n\u003ch3\u003eA high-end streamer with digital volume control, Roon Ready, built-in network switch for NAS, and new internal linear power supply.\u003c\/h3\u003e\n\u003cp\u003eAfter the success of Lumin's single chassis, high-performance products such as the T3 and P1, these Hong Kong–based digital masters bring their low-noise, highly musical designs to a single chassis high-end streamer. \u003c\/p\u003e\n\u003cp\u003eThe all-new for 2023 U2 sits between the U2 MINI and the U1, and has the same high-end chassis construction as the top-flight products. The PSU may be internal but it is a well-shielded linear power supply based on a high-quality toroidal transformer. \u003c\/p\u003e\n\u003cp\u003eThe U2 uses Lumin's latest processor, bringing tremendous upsampling flexibility. An optical fiber network jack provides complete isolation from network digital noise. There are three USB ports including a dedicated low-noise USB audio output. The other two can be used for thumb drives, hard drives, and other music storage options. \u003c\/p\u003e\n\u003cp\u003eA built-in network switch allows you to connect the U2 to your router using, say, the optical network, and connect to your NAS using the RJ45 connector.\u003c\/p\u003e\n\u003cp\u003eLumin's celebrated LEEDH digital volume processing allows you to eliminate a preamp and connect your DAC directly to a power amp. LEEDH processing is totally lossless and both Upscale crew and customers report that it sounds fantastic.\u003c\/p\u003e\n\u003ch4\u003eLEEDH Volume Control\u003c\/h4\u003e\n\u003cp\u003eLumin’s LEEDH lossless digital volume processing was a major upgrade delivered free over-the-air to all Lumin products. LEEDH is a significant improvement over a traditional digital volume control design. Some Upscale customers and employees have even removed preamps from their systems, finding LEEDH to be better-sounding than the analog volume knobs.\u003c\/p\u003e\n\u003cp\u003eLEEDH processing is roughly analogous to a resistor ladder volume in that there is a set of specific steps of loudness from silent to 100%. These steps are calculated to be where the digital attenuation results in an exact answer. As a simplified example, it might choose to divide 15 by 3 and get 5.0, rather than 14 by 3 and get 4.66666666667, which is truncated to 4.66 by \"throwing away bits.\"\u003c\/p\u003e\n\u003cp\u003eLEEDH processing preserves detail, dynamics, and transparency even at low volume levels—without the resolution loss of traditional digital volume controls. Found in ultra-high-end products like the $72,000 Soulution 760 DAC, Lumin brings this advanced technology from their flagship X2 all the way down to the D3.\u003c\/p\u003e\n\u003ch4\u003eThe Upscale View\u003c\/h4\u003e\n\u003cp\u003eLumin is THE brand for hi-fi enthusiasts who don't need touchscreens, knobs, and a host of extra features. With its background in broadcast engineering, Lumin epitomizes providing the lowest noise and most stable, high-bandwidth circuits. On a Lumin, everything extraneous can be turned off: unused digital outputs, unused processing streams such as Roon and Lumin streaming, the display, and even the RJ45 LEDs. The result of this tight focus is a light, lithe, airy sound with a huge, natural soundstage, and no artificial warmth or bloom.\u003c\/p\u003e\n\u003cp\u003eSure, the Lumin app takes a little getting used to, but once you're comfortable, it's fast, stable and most of all, sounds the best.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDual-network interface with built-in network switch\u003c\/li\u003e\n\u003cli\u003eDSD512 and PCM768 playback\u003c\/li\u003e\n\u003cli\u003eFour exceptionally low-phase-noise crystal clock oscillators\u003c\/li\u003e\n\u003cli\u003eNew surface finish taken from the high-end P1\u003c\/li\u003e\n\u003cli\u003eLeedh Processing lossless volume control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePlayback Resolution:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUp to DSD512, up to 768 kHz, 32-bit PCM, MQA Decoding\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Output \u003cbr\u003eUSB:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDSD512, 44.1–768 kHz, 16–32-bit\u003cbr\u003e\u003cstrong\u003eOptical, Coaxial RCA, Coaxial BNC, AES\/EBU:\u003c\/strong\u003e DSD64 (DoP, DSD over PCM), PCM 44.1kHz–192kHz, 16–24-bit\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNetwork:\u003c\/strong\u003e Industry-standard SFP, 1000Base-T Gigabit Ethernet\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePower Supply: \u003c\/strong\u003eInternal toroidal linear, Low-noise linear regulator\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eDimensions (WDH):\u003c\/strong\u003e\u003cspan\u003e 13.8\" x 13.8\" x 2.4\" (\u003c\/span\u003e350 x 350 x 60.5 mm)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cspan\u003e 13.2 lb. (6\u003c\/span\u003e kg)\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Lumin","offers":[{"title":"Silver","offer_id":42162588287160,"sku":"LUM-U2-SIL","price":5500.0,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":42162588254392,"sku":"LUM-U2-BLK","price":5500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1564\/1247\/products\/LUMIN-U2-Silver-front.jpg?v=1741630320","url":"https:\/\/upscaleaudio.pro\/products\/lumin-u2-digital-transport-streamer","provider":"Upscale Audio","version":"1.0","type":"link"}