{"product_id":"ladder-chopin-ii","title":"Ladder Chopin II Fully Balanced R-2R HiFi Preamplifier","description":"\u003ch2\u003eLADDER Chopin II Fully Balanced R-2R HiFi Preamplifier\u003c\/h2\u003e\n\u003cp\u003eThe LADDER Chopin II is a pure Class-A, fully balanced and fully discrete line-stage preamplifier. Its microprocessor-controlled, relay-based 60-step attenuator and precision-matched components are designed for accurate volume adjustment, close channel balance and low distortion.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e60-step relay-based attenuator:\u003c\/strong\u003e Microprocessor-controlled for precise, repeatable volume adjustment, with remote control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue balanced, fully discrete Class-A design:\u003c\/strong\u003e A line-stage circuit with unity gain and balanced outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStable power supply:\u003c\/strong\u003e A 65 W pure-copper toroidal transformer, ERSE capacitors and eight independent regulated power supplies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarefully selected components:\u003c\/strong\u003e Gold-plated single-crystal copper RCA terminals, a low-noise capacitor bank and precision-matched resistors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminum-alloy construction:\u003c\/strong\u003e A substantial chassis with a clean front-panel layout.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eInputs\u003c\/th\u003e\n\u003ctd\u003eIN1: XLR; IN2: XLR; IN3: RCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eInput impedance\u003c\/th\u003e\n\u003ctd\u003eSingle-ended: 12.2 kΩ; balanced: 60 kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOutput level\u003c\/th\u003e\n\u003ctd\u003eRCA: 2.0 Vrms; XLR: 4.0 Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOutput impedance\u003c\/th\u003e\n\u003ctd\u003eSingle-ended: 200 Ω; balanced: 400 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eGain\u003c\/th\u003e\n\u003ctd\u003eUnity gain (0 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFrequency response\u003c\/th\u003e\n\u003ctd\u003e10 Hz–80 kHz (−0.3 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTHD+N\u003c\/th\u003e\n\u003ctd\u003e0.00%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSignal-to-noise ratio\u003c\/th\u003e\n\u003ctd\u003e120 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDynamic range\u003c\/th\u003e\n\u003ctd\u003e\u0026gt;121 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eStereo crosstalk\u003c\/th\u003e\n\u003ctd\u003e−110 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePower\u003c\/th\u003e\n\u003ctd\u003e1 W idle; 20 W operating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAC power requirement\u003c\/th\u003e\n\u003ctd\u003e100–240 V AC, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eNet \/ gross weight\u003c\/th\u003e\n\u003ctd\u003e6.5 kg \/ 9.7 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAvailable colors\u003c\/th\u003e\n\u003ctd\u003eSilver \/ Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e12 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLADDER Chopin II preamplifier\u003c\/li\u003e\n\u003cli\u003eUser manual ⚠ without power plug\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e A power plug is not included. Product dimensions were omitted because the supplied source lists conflicting measurements.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\" align=\"center\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0626\/2004\/1455\/files\/Chopin-II-_--__01.jpg?v=1790584613\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0626\/2004\/1455\/files\/Chopin_II-_--__02.jpg?v=1790584635\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0626\/2004\/1455\/files\/Chopin_II-_--__03.jpg?v=1790584660\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Ladder","offers":[{"title":"Silver","offer_id":50904345116911,"sku":"1005008257345747-Silver","price":5942.0,"currency_code":"PLN","in_stock":true},{"title":"Black","offer_id":50904345149679,"sku":"1005008257345747-Black","price":5942.0,"currency_code":"PLN","in_stock":true},{"title":"Silver+remote control","offer_id":50904345182447,"sku":"669823354822","price":6140.0,"currency_code":"PLN","in_stock":true},{"title":"Black+remote control","offer_id":50904345215215,"sku":"669823354822","price":6140.0,"currency_code":"PLN","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/2004\/1455\/files\/1_75fed4f8-6370-4458-96f6-1cb3944e8257.png?v=1790584422","url":"https:\/\/thehificat.com\/en-pl\/products\/ladder-chopin-ii","provider":"The HiFi Cat","version":"1.0","type":"link"}