{"product_id":"modwright-instruments-ls300-balanced-tube-preamplifier","title":"ModWright Instruments LS300 Balanced Tube Preamplifier","description":"\u003cdiv style=\"width:1600px;margin:0 auto;\"\u003e\n\n\u003cdiv style=\"max-width:1200px;margin:0 auto;font-family:Arial,sans-serif;text-align:center;\"\u003e\n  \u003cdiv style=\"padding:40px 20px;\"\u003e\n    \u003ch1 style=\"font-size:56px;margin:0 0 10px;font-weight:800;\"\u003eLS300 Balanced Tube Preamplifier\u003c\/h1\u003e\n\n  \u003c\/div\u003e\n  \u003c!-- Image --\u003e\n  \u003cdiv style=\"background:#ffffff;padding:40px 20px;\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0529\/7117\/6085\/files\/ls300rear.webp?v=1775148268\" alt=\"Product Image\" style=\"max-width:100%;height:auto;\"\u003e\n  \u003c\/div\u003e\n\n\u003chr style=\"border:none;height:2px;width:100%;margin:50px 0;background:linear-gradient(to right, transparent, #000000, transparent);\"\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"max-width:1200px;margin:0 auto;display:flex;flex-wrap:wrap;align-items:center;font-family:Arial,sans-serif;\"\u003e\n\n  \u003c!-- Text --\u003e\n  \u003cdiv style=\"padding:20px;color:#000000;line-height:1.6;font-size:18px;\"\u003e\n    \u003cp\u003eProfessional Photos Coming Soon from Lee Shelly Photography…\n\u003cbr\u003e\u003cbr\u003e\n\u003cb\u003ePresenting the new LS 300 Balanced Tube Preamplifier, featuring outboard supply and dual mono construction. The LS 300 represents our new Fully Balanced Reference Tube preamplifier.\u003c\/b\u003e\n\u003cbr\u003e\u003cbr\u003e\nStyled like the PH 150 and KWA 150SE, the LS 300 represents elegant and refined aesthetics and sonics. Multiple sets of fully balanced XLR inputs and outputs as well as RCA inputs and main outs, allow maximum flexibility for any high end system. All RCA inputs are converted to fully balanced signal via high quality Lundahl signal transformers.\n\u003cbr\u003e\u003cbr\u003e\nThe dual mono design of the LS 300, combined with its extremely low noise floor, provide exceptional soundstage and separation. The use of an external power supply and fully separately regulated power supplies per channel are keys to this achievement.\n\u003cbr\u003e\u003cbr\u003e\nThe LS 300 uses (2) 6922 tube drivers and (2) 5R4GY tube rectifiers, to provide a tonal balance that is both bold and refined, dynamic and musical. The design goal for the LS 300 was to provide the beauty of tubes, whilst maintaining a neutral sonic signature. The 3-dimensionality of tubes is celebrated, along with controlled bass and refined highs.\n\u003cbr\u003e\u003cbr\u003e\nThe back panel features (3) sets of RCA inputs and (2) sets of fully balanced XLR inputs. Main outputs include two sets of RCA single ended outs and two sets of fully balanced XLR outs. One set of RCA inputs also serves as Home Theater Bypass (HT\/BP).\n\u003cbr\u003e\u003cbr\u003e\n\u003cb\u003eFEATURES:\u003c\/b\u003e\u003cbr\u003e\nTwo sets of fully balanced XLR inputs.\u003cbr\u003e\nThree sets of single ended RCA inputs.\u003cbr\u003e\nOne of the three sets of RCA inputs also serves as Home Theater Bypass.\u003cbr\u003e\nTwo sets of fully balanced main outs.\u003cbr\u003e\nTwo sets of single ended main outs.\u003cbr\u003e\nFront panel controls: Input select, power, mute, Home Theater Bypass (HT\/BP) and Phase.\u003cbr\u003e\nRemote control functions include: Volume, mute, power and phase invert.\u003cbr\u003e\nTube Complement: (2)6dj8 (6922\/7308) drivers and (2) 5R4GY (may use 5AR4\/GZ34\/5U4GB\/5V4GB\/274B and\nequivalent) rectifiers.\u003cbr\u003e\nPure Class A, fully balanced in to out, zero negative feedback.\n\n    \u003c\/p\u003e\n    \u003cp style=\"text-align:center;\"\u003eLS300 Tube Pre-Amplifier. Heirloom Quality Tube Equipment. Timeless in every way.\n\u003cbr\u003e\u003cbr\u003e\nProudly hand crafted in the U.S.A.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"width: 100%; max-width: 1600px; margin: 20px auto; padding: 0 15px; box-sizing: border-box;\"\u003e\n  \u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; border-radius: 8px; background: #000;\"\u003e\n    \u003ciframe style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;\" src=\"https:\/\/www.youtube.com\/embed\/jkSOThlysUU?si=B-4A7TEGmJeN-_5V\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen\u003e\n    \u003c\/iframe\u003e\n  \u003c\/div\u003e\n  \u003chr style=\"border:none;height:2px;width:100%;margin:50px 0;background:linear-gradient(to right, transparent, #000000, transparent);\"\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"max-width:1200px;margin:0 auto;font-family:Arial,sans-serif;color:#333;\"\u003e\n\n  \u003c!-- Title --\u003e\n  \u003ch2 style=\"font-size:56px;margin:40px 0 30px 0;font-weight:800;\"\u003eTechnical Spec\u003c\/h2\u003e\n\n  \u003c!-- Grid --\u003e\n  \u003cdiv style=\"display:flex;flex-wrap:wrap;gap:40px;\"\u003e\n\n    \u003c!-- Column 1 --\u003e\n    \u003cdiv style=\"flex:1;min-width:280px;line-height:1.6;\"\u003e\n      \u003cstrong\u003eInput Impedance: \u003c\/strong\u003e\u003cbr\u003e\n20K\n      \u003cbr\u003e\n      \u003cstrong\u003eOutput Impedance: \u003c\/strong\u003e\u003cbr\u003e\n      100 ohm\n\n      \u003cbr\u003e\n      \u003cstrong\u003eGain: \u003c\/strong\u003e\u003cbr\u003e\n      11dB\n\n      \u003cbr\u003e\n      \u003cstrong\u003eNoise: \u003c\/strong\u003e\u003cbr\u003e\n     -115dB\n\n    \u003c\/div\u003e\n\n    \u003c!-- Column 2 --\u003e\n    \u003cdiv style=\"flex:1;min-width:280px;line-height:1.6;\"\u003e\n      \u003cstrong\u003eFrequency Response: \u003c\/strong\u003e\u003cbr\u003e\n20Hz – 100Khz (-1dB at 100Khz).\u003cbr\u003e\n      \u003cstrong\u003eDistortion: \u003c\/strong\u003e\u003cbr\u003e\n\u0026lt; .03% THD @ 1Khz.\n  \u003cbr\u003e\n      \u003cstrong\u003eDimensions: \u003c\/strong\u003e\u003cbr\u003e\nPreamp = 17“W x 8“H x 12.5“D (Height depends on rectifier tube)\n    \u003c\/div\u003e\n\n    \u003c!-- Column 3 --\u003e\n    \u003cdiv style=\"flex:1;min-width:280px;line-height:1.6;\"\u003e\n      \n      \u003cstrong\u003eDimensions: \u003c\/strong\u003e\u003cbr\u003e\nExternal Supply = 8“W x 4.5“H x 10“D.\u003cbr\u003e\n       \u003cstrong\u003eWeight: \u003c\/strong\u003e\u003cbr\u003e\nPreamp = 30 lbs. External Supply = 17 lbs.\n      \u003cbr\u003e\n       \u003cstrong\u003eUmbilicals: \u003c\/strong\u003e\u003cbr\u003e\n(2) 4 ft. umbilicals with 8-pin Switchcraft connectors.\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n  \n   \u003cdiv style=\"max-width:1200px; margin:0 auto; font-family: Arial, sans-serif; line-height:1.6; color:#000;\"\u003e\n\u003ch2 style=\"font-size:56px;margin:40px 0 30px 0;font-weight:800;\"\u003eDownloads\u003c\/h2\u003e\n  \u003c!-- Item 1 --\u003e\n  \u003cdiv style=\"margin-bottom:12px;font-size:18px;\"\u003e\n    \u003ca href=\"https:\/\/www.modwright.com\/wp-content\/uploads\/ls-300-owners-manual.pdf\" target=\"_blank\" style=\"color:#1a73e8; text-decoration:none;\"\u003e\n      LS300 Owners Manual\n    \u003c\/a\u003e\u003cbr\u003e\n    \u003ca href=\"https:\/\/www.modwright.com\/wp-content\/uploads\/1546043320ls300flyer.pdf\" target=\"_blank\" style=\"color:#1a73e8; text-decoration:none;\"\u003e\n      LS300 Product Flyer\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"ModWright Instruments","offers":[{"title":"Default Title","offer_id":47223970136213,"sku":null,"price":11000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0529\/7117\/6085\/files\/img4602_79a4bea2-504a-4071-becd-d93154a64888.webp?v=1775148967","url":"https:\/\/houseofstereo.com\/es\/products\/modwright-instruments-ls300-balanced-tube-preamplifier","provider":"House Of Stereo","version":"1.0","type":"link"}