{"product_id":"modwright-ls300-balanced-tube-preamplifier","title":"ModWright LS300 Balanced Tube Preamplifier","description":"\u003cp\u003ePresenting the LS 300 Balanced Tube Preamplifier, featuring outboard supply and dual mono construction. The LS 300 represents our new Fully Balanced Reference Tube preamplifier.\u003cbr\u003e\u003cbr\u003eStyled 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.\u003cbr\u003e\u003cbr\u003eThe 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.\u003cbr\u003e\u003cbr\u003eThe 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.\u003cbr\u003e\u003cbr\u003eThe 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).\u003c\/p\u003e\n\u003ch2\u003eFEATURES:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTwo sets of fully balanced XLR inputs.\u003c\/li\u003e\n\u003cli\u003eThree sets of single ended RCA inputs.\u003c\/li\u003e\n\u003cli\u003eOne of the three sets of RCA inputs also serves as Home Theater Bypass.\u003c\/li\u003e\n\u003cli\u003eTwo sets of fully balanced main outs.\u003c\/li\u003e\n\u003cli\u003eTwo sets of single ended main outs.\u003c\/li\u003e\n\u003cli\u003eFront panel controls: Input select, power, mute, Home Theater Bypass (HT\/BP) and Phase.\u003c\/li\u003e\n\u003cli\u003eRemote control functions include: Volume, mute, power and phase invert.\u003c\/li\u003e\n\u003cli\u003eTube Complement: (2)6dj8 (6922\/7308) drivers and (2) 5R4GY (may use 5AR4\/GZ34\/5U4GB\/5V4GB\/274B and\u003c\/li\u003e\n\u003cli\u003eequivalent) rectifiers.\u003c\/li\u003e\n\u003cli\u003ePure Class A, fully balanced in to out, zero negative feedback.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSPECIFICATIONS:\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eInput Impedance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e20K\u003cbr\u003e\u003cstrong\u003eOutput Impedance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e100 ohm\u003cbr\u003e\u003cstrong\u003eGain:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e11dB\u003cbr\u003e\u003cstrong\u003eNoise:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e-115dB\u003cbr\u003e\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e20Hz – 100Khz (-1dB at 100Khz).\u003cbr\u003e\u003cstrong\u003eDistortion:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u0026lt; .03% THD @ 1Khz.\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePreamp = 17“W x 8“H x 12.5“D (Height depends on rectifier tube)\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eExternal Supply = 8“W x 4.5“H x 10“D.\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePreamp = 30 lbs. External Supply = 17 lbs.\u003cbr\u003e\u003cstrong\u003eUmbilicals:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(2) 4 ft. umbilicals with 8-pin Switchcraft connectors.\u003cbr\u003e\u003cbr\u003eProudly hand crafted in the U.S.A.\u003cbr\u003e\u003c\/p\u003e","brand":"The Music Room","offers":[{"title":"Black","offer_id":51268079911193,"sku":"1416newModWright","price":11000.0,"currency_code":"USD","in_stock":true},{"title":"Silver","offer_id":51268079943961,"sku":"1415newModWright","price":11000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/Untitled_design_-_2026-02-26T155058.855.jpg?v=1772139108","url":"https:\/\/tmraudio.com\/products\/modwright-ls300-balanced-tube-preamplifier","provider":"The Music Room","version":"1.0","type":"link"}