{"product_id":"mark-levinson-no523-dual-mono-preamplifier","title":"Mark Levinson No523 Dual-Mono Preamplifier","description":"\u003ch1\u003eMark Levinson No523 Dual-Mono Preamplifier\u003c\/h1\u003e\n\u003cp\u003eThe Mark Levinson® № 523 preamplifier is a six-input dual-monaural preamplifier featuring Pure Path circuit design, class-A Pure Phono stage, and configurable balanced, unbalanced, and class-A Main Drive headphone outputs.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePure Path discrete, direct coupled, fully balanced, dual-monaural signal path\u003c\/li\u003e\n\u003cli\u003eDiscrete, balanced R-2R Ladder volume control for precision and performance\u003c\/li\u003e\n\u003cli\u003eClass-A Pure Phono stage with physically separated channels for MC and MM\u003c\/li\u003e\n\u003cli\u003eClass-A Main Drive Headphone output for up to 32-Ohm headphones using main circuit\u003c\/li\u003e\n\u003cli\u003eSix analog line-level and phono inputs; balanced, single-ended, and headphone outputs\u003c\/li\u003e\n\u003cli\u003eSelectable fourth-order, 80 Hz high-pass filter allows seamless integration of subwoofers\u003c\/li\u003e\n\u003cli\u003eDesigned and handcrafted in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eLine stage gain:\u003c\/strong\u003e 13.5 dB balanced, 7.5 dB single-ended \u003cbr\u003e\u003cstrong\u003eInput impedance:\u003c\/strong\u003e \u0026gt;45 kΩ\u003cbr\u003e\u003cstrong\u003eOutput impedance:\u003c\/strong\u003e \u0026lt;80 Ω single-ended, \u0026lt;160 Ω balanced\u003cbr\u003e\u003cstrong\u003eMaximum input level, normal gain setting:\u003c\/strong\u003e \u0026gt;10 V RMS, single-ended, \u0026gt;15 V RMS, balanced\u003cbr\u003e\u003cstrong\u003eMaximum output level:\u003c\/strong\u003e \u0026gt;11 V RMS single-ended, \u0026gt;22 V RMS balanced\u003cbr\u003e\u003cstrong\u003eHeadphone output impedance:\u003c\/strong\u003e selectable, \u0026lt;3 Ω or 75 Ω\u003cbr\u003e\u003cstrong\u003eInfrasonic filter:\u003c\/strong\u003e Defeatable, 15 Hz, 2nd order (12 dB\/octave)\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMoving magnet mode\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003eInput resistance:\u003c\/strong\u003e 47 kΩ\u003cbr\u003e\u003cstrong\u003eInput capacitance:\u003c\/strong\u003e Selectable; 50, 100, 150, 200, or 680 pF\u003cbr\u003e\u003cstrong\u003eGain:\u003c\/strong\u003e 40 dB @ 1 kHz\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMoving coil mode\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eInput resistance:\u003c\/strong\u003e selectable; 20, 33, 50, 66, 100, 200, 330, 500, 1000, or 47 kΩ\u003cbr\u003e\u003cstrong\u003eInput capacitance:\u003c\/strong\u003e 50 pF\u003cbr\u003e\u003cstrong\u003eGain:\u003c\/strong\u003e Selectable; 50, 60, or 70 dB @ 1 kHz\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAnalog inputs:\u003c\/strong\u003e 2 balanced (XLR), 3 single-ended (RCA) line, 1 single-ended (RCA) phono w\/ ground\u003cbr\u003e\u003cstrong\u003eAnalog outputs:\u003c\/strong\u003e 1 balanced (XLR); 1 pair single-ended (RCA), 1 headphone (¼”, 6.3mm TS)\u003cbr\u003e\u003cstrong\u003eControl connectors:\u003c\/strong\u003e Ethernet (RJ45), RS-232 (RJ12), Trigger In and Out, IR In, USB-A, Mini USB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions (HWD):\u003c\/strong\u003e 3.75\" x 17.25\" x 18\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 39 lb\u003c\/p\u003e","brand":"Mark Levinson","offers":[{"title":"Default Title","offer_id":31732048658492,"sku":"ML No523","price":18500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1564\/1247\/products\/MarkLevinson_No523_Angle_Hero_Black_Web_2048x2048_bbb80fd0-14a4-44bb-b3d1-39960a20dd19.jpg?v=1741631487","url":"https:\/\/upscaleaudio.pro\/products\/mark-levinson-no523-dual-mono-preamplifier","provider":"Upscale Audio","version":"1.0","type":"link"}