{"product_id":"luxman-cl-38uc-tube-preamplifier-clearance-open-box","title":"LUXMAN CL-38UC Tube Preamplifier - Clearance \/ Open Box","description":"\u003ch3\u003eLUXMAN CL-38uC Vacuum Tube Preamplifier\u003c\/h3\u003e \u003cp\u003eThe Luxman CL-38uC is a beautifully crafted vacuum tube control amplifier (tube preamplifier) designed to deliver rich, natural musicality with modern connectivity and precision. Built around SRPP (Shunt Regulated Push Pull) circuitry in all stages, it provides a clean, stable signal path with low distortion and a refined, tube-forward presentation that stays detailed and accurate. A genuine built-in phono equalizer supports both MM and MC cartridges, with MC-low and MC-high gain\/impedance options using independent MC transformers and a convenient selector lever for quick matching to your cartridge. To tailor your system exactly to your room and taste, the CL-38uC includes tone controls with selectable turnover frequencies, plus a low-cut filter for improved control of rumble and unwanted low-frequency energy. Finished with Luxman’s classic styling and a traditional wooden case, this control amp also adds balanced inputs (transformer-equipped) and includes a compact aluminum remote for smooth volume control from your listening seat.\u003c\/p\u003e \u003cp\u003e\u003ca href=\"https:\/\/listenup.com\/products\/luxman-mq-88uc-vaccum-tube-power-amplifier\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eBuilt to match the LUXMAN MQ-88uC Vacuum Tube Amplifer.\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e \u003cp\u003eThe LUXMAN CL-38uC is part of ListenUp's \u003ca href=\"https:\/\/listenup.com\/collections\/luxman-preamplifiers\" title=\"LUXMAN Preamplifier Collection\"\u003eLUXMAN Preamplifier Collection\u003c\/a\u003e.\u003c\/p\u003e \u003ch4\u003eWhat It's Good At:\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eTrue tube preamp character with control:\u003c\/strong\u003e SRPP circuitry throughout for a smooth, open presentation with excellent stability.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVinyl-ready for MM and MC:\u003c\/strong\u003e Built-in phono equalizer plus dedicated MC transformers for MC-high and MC-low operation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBetter cartridge matching:\u003c\/strong\u003e Quick MC impedance\/gain selection helps optimize dynamics, noise, and tonal balance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSystem-friendly connectivity:\u003c\/strong\u003e Adds transformer-equipped \u003cstrong\u003ebalanced inputs\u003c\/strong\u003e for seamless integration with high-end sources.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFine-tuning without harshness:\u003c\/strong\u003e Tone controls with selectable frequencies and a low-cut filter to dial in the sound naturally.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLuxury build and everyday convenience:\u003c\/strong\u003e Classic Luxman design with a wooden case and included remote volume control.\u003c\/li\u003e \u003c\/ul\u003e \u003ch4\u003eLUXMAN CL-38uC Full Specifications:\u003c\/h4\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eInput sensitivity \/ Input impedance\u003c\/strong\u003e \u003cul\u003e \u003cli\u003ePHONO (MM): 2.0mV \/ 47kΩ\u003c\/li\u003e \u003cli\u003ePHONO (MC high): 0.3mV \/ 100Ω\u003c\/li\u003e \u003cli\u003ePHONO (MC low): 0.08mV \/ 30Ω\u003c\/li\u003e \u003cli\u003eLINE: 190mV \/ 50kΩ\u003c\/li\u003e \u003cli\u003eBAL.LINE: 190mV \/ 20kΩ (transformer-equipped balanced inputs)\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOutput \/ Output impedance\u003c\/strong\u003e \u003cul\u003e \u003cli\u003eRated: 1V \/ 300Ω\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFrequency response\u003c\/strong\u003e \u003cul\u003e \u003cli\u003ePHONO: 20Hz to 20kHz (±0.5dB)\u003c\/li\u003e \u003cli\u003eLINE \/ BAL.LINE: 10Hz to 70kHz (within -3.0dB)\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTotal harmonic distortion\u003c\/strong\u003e \u003cul\u003e \u003cli\u003e0.006% or less (1kHz)\u003c\/li\u003e \u003cli\u003e0.06% or less (20Hz to 20kHz)\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eS\/N ratio (IHF-A)\u003c\/strong\u003e \u003cul\u003e \u003cli\u003ePHONO (MM): 68dB or more\u003c\/li\u003e \u003cli\u003ePHONO (MC high): 63dB or more\u003c\/li\u003e \u003cli\u003ePHONO (MC low): 60dB or more\u003c\/li\u003e \u003cli\u003eLINE \/ BAL.LINE: 100dB or more\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTone control\u003c\/strong\u003e \u003cul\u003e \u003cli\u003e±8dB, selectable frequency range\u003c\/li\u003e \u003cli\u003eBASS: 150 \/ 300 \/ 600Hz\u003c\/li\u003e \u003cli\u003eTREBLE: 1.5k \/ 3k \/ 6kHz\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLow cut\u003c\/strong\u003e \u003cul\u003e \u003cli\u003e30Hz (-6dB\/oct.)\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCircuit\u003c\/strong\u003e \u003cul\u003e \u003cli\u003eSRPP\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVacuum tubes\u003c\/strong\u003e \u003cul\u003e \u003cli\u003eECC83S × 3, ECC82 × 5\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePower supply\u003c\/strong\u003e \u003cul\u003e \u003cli\u003e230V~ (50Hz) \/ 115V~ (60Hz)\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePower consumption\u003c\/strong\u003e \u003cul\u003e \u003cli\u003e35W\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eExternal dimensions\u003c\/strong\u003e \u003cul\u003e \u003cli\u003e440(W) × 169(H) × 307(D) mm\u003c\/li\u003e \u003cli\u003eNote: 19mm front panel knob and 12mm rear panel terminals are included in the depth measurement\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNet weight\u003c\/strong\u003e \u003cul\u003e \u003cli\u003e13.3kg (main unit)\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAccessories\u003c\/strong\u003e \u003cul\u003e \u003cli\u003eRemote control (RA-19), Power cable\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBalanced input note\u003c\/strong\u003e \u003cul\u003e \u003cli\u003eTransformer-equipped balanced inputs; maximum balanced input level equivalent to 2.5V (higher-output devices may distort).\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003c\/ul\u003e \u003ch4\u003eLUXMAN CL-38uC Q\u0026amp;A:\u003c\/h4\u003e \u003cdl\u003e \u003cdt\u003e\u003cstrong\u003eIs the CL-38uC a preamp or a power amplifier?\u003c\/strong\u003e\u003c\/dt\u003e \u003cdd\u003eThe CL-38uC is a vacuum tube control amplifier (preamplifier) designed to manage sources, phono playback, and volume control before sending signal to a power amplifier or active speakers.\u003c\/dd\u003e \u003cdt\u003e\u003cstrong\u003eDoes it include a built-in phono stage for turntables?\u003c\/strong\u003e\u003c\/dt\u003e \u003cdd\u003eYes. It includes a genuine phono equalizer that supports MM cartridges and MC cartridges with dedicated step-up transformer support.\u003c\/dd\u003e \u003cdt\u003e\u003cstrong\u003eWhat MC cartridge options does it support?\u003c\/strong\u003e\u003c\/dt\u003e \u003cdd\u003eIt supports MC high (0.3mV\/100Ω) and MC low (0.08mV\/30Ω), each with independent MC transformers, selectable via the MC impedance lever switch.\u003c\/dd\u003e \u003cdt\u003e\u003cstrong\u003eDoes the CL-38uC have balanced (XLR) inputs?\u003c\/strong\u003e\u003c\/dt\u003e \u003cdd\u003eYes. It adds transformer-equipped balanced inputs to improve compatibility with high-end sources and system layouts.\u003c\/dd\u003e \u003cdt\u003e\u003cstrong\u003eIs there anything to watch out for with the balanced inputs?\u003c\/strong\u003e\u003c\/dt\u003e \u003cdd\u003eYes. The balanced inputs have a maximum input level equivalent to 2.5V; connecting a device with a higher output voltage may cause distortion.\u003c\/dd\u003e \u003cdt\u003e\u003cstrong\u003eCan I adjust bass and treble on this preamp?\u003c\/strong\u003e\u003c\/dt\u003e \u003cdd\u003eYes. It includes tone controls (±8dB) with selectable turnover frequencies—Bass: 150\/300\/600Hz and Treble: 1.5k\/3k\/6kHz—for precise, musical tuning.\u003c\/dd\u003e \u003cdt\u003e\u003cstrong\u003eDoes it have a low-cut filter for rumble or unwanted bass?\u003c\/strong\u003e\u003c\/dt\u003e \u003cdd\u003eYes. The low-cut is set at 30Hz (-6dB\/oct.), helping reduce turntable rumble and very low-frequency buildup.\u003c\/dd\u003e \u003cdt\u003e\u003cstrong\u003eWhat tubes does the CL-38uC use?\u003c\/strong\u003e\u003c\/dt\u003e \u003cdd\u003eThe tube complement is ECC83S × 3 and ECC82 × 5, chosen to support its SRPP circuit design and overall sonic performance.\u003c\/dd\u003e \u003c\/dl\u003e \u003ch4\u003eLUXMAN CL-38uC Downloads:\u003c\/h4\u003e \u003cp\u003e\u003ca href=\"https:\/\/storage.googleapis.com\/lupublic\/Luxman-CL-38uC-catalog.pdf\" title=\"LUXMAN CL-38uC Catalog\"\u003eLUXMAN CL-38uC Catalog\u003c\/a\u003e\u003c\/p\u003e","brand":"LUXMAN","offers":[{"title":"Default Title","offer_id":62886080774303,"sku":"LXM-OBX-CL-38UC","price":6799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0495\/6910\/4031\/files\/886145e0-685e-403b-8e8f-2b622cdd89db.jpg?v=1791400021","url":"https:\/\/listenup.com\/products\/luxman-cl-38uc-tube-preamplifier-clearance-open-box","provider":"ListenUp","version":"1.0","type":"link"}