{"product_id":"audio-research-ls28se-preamplifier","title":"Audio Research LS28SE Preamplifier","description":"The Audio Research LS28SE line stage preamplifier features four 6H30 dual-triode vacuum tubes, proprietary gold coupling capacitors, four balanced XLR inputs, and four single-ended RCA inputs. This precision vacuum tube component acts as the foundational control center for audiophile electronics, managing incoming audio signals with uncompromising transparency and linearity. It integrates advanced microprocessor-driven controls, an intuitive menu system displaying tube hours, a phase invert option, and a dedicated home theater passthrough mode.\n\nCritical acclaim from publications like Tone Publications and Part-Time Audiophile praises the preamplifier for its stunning holographic soundstage, extended treble detail, and organic midband texture. Reviewers often highlight that its performance closely mirrors the flagship Reference series, providing exceptional transient snap and a vastly lowered noise floor. While experts note that the high-performance vacuum tubes require routine monitoring via the internal hour counter, they agree that its effortless purity sets a benchmark for modern line stages.\n\nIntroducing this level of preamplification redefines how your entire music collection breathes and resolves. By removing systemic veils, it unlocks the latent emotional power of your source material and power amplification. It represents a vital investment for the dedicated listener seeking to experience the true depth and vitality of a live performance from the comfort of home.","brand":"Audio Research","offers":[{"title":"Default Title","offer_id":68643414540569,"sku":"102695","price":6799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/102695-6.jpg?v=1794513558","url":"https:\/\/tmraudio.com\/products\/audio-research-ls28se-preamplifier","provider":"The Music Room","version":"1.0","type":"link"}